Solar Power for Beginners

A Comprehensive Beginner's Guide to Setup and Install Solar Power System Easily and Effectively at Home

Simon

Gorman

Copyright © 2020 Simon Gorman

All rights reserved.

It is not legal to reproduce, duplicate, or transmit any part of this document by either electronic means or in printed format. Recording of this publication is strictly prohibited

Disclaimer

The information in this book is based on personal experience and anecdotal evidence. Although the author has made every attempt to achieve an accuracy of the information gathered in this book, they make no representation or warranties concerning the accuracy or completeness of the contents of this book. Your circumstances may not be suited to some illustrations in this book.

The author disclaims any liability arising directly or indirectly from the use of this book. Readers are encouraged to seek Medical. Accounting, legal, or professional help when required.

This guide is for informational purposes only, and the author does not accept any responsibilities for any liabilities resulting from the use of this information. While every attempt has been made to verify the information provided here, the author cannot assume any responsibility for errors, inaccuracies or omission.

Contents

INTRODUCTION

CHAPTER ONE

What is Solar Power?

History of solar power

What you should know before installing solar power

CHAPTER TWO

How to design and install a solar power system

STEP 1: Preparation and Safety

Important materials to buy

Unboxing your solar power system

Get your safety equipment ready

Backfeed breaker installation (For Grid-Tie)

STEP 2: How to mount your solar panels

Spacing and layout information

STEP 3: Racking rails installation

STEP 4: Mount panels on the roof

Ground Mounting

Batteries

How does solar energy work?

The cost of solar power

CHAPTER THREE

Is solar power renewable?

Pros and cons of solar power/energy

Photovoltaic Cells

Solar Thermal Power Plant

CHAPTER FOUR

Parts of the solar energy system

Difference between grid-tie vs. off-grid solar?

What is net metering?

CHAPTER FIVE

What is solar power made of?

How long do solar panels last?

How big are solar panels?

CHAPTER SIX

Types of solar panels on the market

How is solar power efficiency measured?

Inverter – Its function?

CHAPTER SEVEN

String inverter: Meaning?

Power Optimizers: Meaning?

Does solar power need batteries?

CHAPTER EIGHT

How does the battery work with grid-tie systems?

Which battery is the best for solar power?

Which is best – Roof or Ground mount?

CHAPTER NINE

Are pole mounts worth it?

What size of a solar power system is needed?

Meaning of solar trackers

CHAPTER TEN

How long will the solar panels last?

Meaning of string sizing?

Is it possible to install solar power myself?

CHAPTER ELEVEN

How much do solar power installers cost to hire?

Is solar power a good investment?

Does the solar system need maintenance?

CHAPTER TWELVE

Solar power system troubleshooting

My solar power system does not work – what do I do?

How to know if my solar power system is working fine?

Can the solar panel be repaired?

CHAPTER THIRTEEN

What should I do if my solar power system has a power outage?

What should If my solar system has low output?

Do dirt and leaves affect solar power system efficiency?

CHAPTER FOURTEEN

Is the solar system right in a cyclone-prone area?

What is the difference between kW and kW/h?

How does solar energy compare to conventional energy?

CHAPTER FIFTEEN

Is the junction box behind the panel necessary?

Can solar power be used for other applications?

Do solar power systems require a bright sun to work?

CHAPTER SIXTEEN

Is my roof suitable to install solar panels?

Can I get any rebate when I buy a solar power system?

Is it beneficial to purchase in solar power system?

CHAPTER SEVENTEEN

Can solar power systems reduce electricity bill to zero?

Tips before purchasing a solar power system

CONCLUSION

INTRODUCTION

Solar power systems are the best electricity sources, and it is cost-effective when purchased and installed. It works by changing sunlight into direct current power with the use of photovoltaic effect.

As a result, the direct current power is kept in a battery and converted by a solar inverter into AC power to generate energy for household appliances. Some solar panel owners even distribute energy to electricity grids and receive money for it.

Solar energy systems are divided into on-grid, off-grid, and hybrid, with the off-grid being the most popular type being used. First of all, users will learn what solar power is about before getting to know the essential things to consider before installing a solar panel.

Going further, you will learn the detailed methods of designing and installing a solar panel. Other things users stand to learn in this guide include the solar energy system’s cost, is solar power renewable, what are they made of, advantages and disadvantages, how long solar panel lasts, and so much more.

CHAPTER ONE

What is Solar Power?

Solar power system is a designed and installed technology that absorbs sunlight and converts it to electricity to power household appliances. The major components that make up the solar panel include an inverter (converts DC to AC), rack system (it holds PV panels), and photovoltaic panels.

Solar panels are generally placed on rooftops, although it may be installed on the ground in some cases. To obtain the best performance, solar energy systems should be installed while facing the east, west, or north. Although facing solar systems to the south will work fine, but it will not produce maximum efficiency.

While installing solar panels, ensure it is placed at least 10 degrees to ensure they can be cleaned when raindrops from the sky. Like mentioned earlier, energy or power is generated when solar panels come in direct connection with sunlight.

The change of sunlight into power takes place in the solar panel cells. Asides from the inverter, the solar power system does not have any moving component. Rather than purchasing costly electricity from retailers, a solar power system can serve you electricity at no extra cost apart from purchasing the system.

History of solar power

Bell Labs introduced the first photovoltaic cell. It was introduced in the year 1954. Meanwhile, that is not to say that solar power had not formerly been used and converted into usable energy through different means.

However, it was not until after 1954 did solar power start to act as a dependable and feasible source of electricity to generate power for electrical devices over long periods.

According to science experts, it is believed that the original solar cells altered solar radiation to electricity at an applicable rate of 4%. On reference basis, numerous solar energy systems in today’s world can convert sunlight to solar power at more than 20% power efficiency (NB: This number is continuously increasing as the day goes by) .

Although solar power discovery was slow at the initial stage, some federal and state policies combined their effort to reduce solar panels' price to become widely used by many people.

Solar power can currently generate energy for over 11 million households out of about 126 million homes.

What you should know before installing solar power

Solar power installation has become easy to do because of the growth of solar technology. On a second thought, it does not necessarily mean that you will always find it easy to install solar panels.

Meanwhile, we have compiled several things you are supposed to know before installing solar power. Take a look below:

1. First of all, ensure that your roof is stable and supports the solar power installation. This is very important because some roofs may not be strong enough for solar power installation, causing the roof to collapse.

You should not install solar panels on a roof that will collapse or carry solar power because it may even cost you additional money to fix.

2. The subsequent thing to do while installing your solar power is to measure the dimensions of your roof. You should also ensure that your solar panels can enter the open space on your roof (NB: This second point should not be followed if you are using solar roof tiles) .

Furthermore, while installing solar power, you should also look into using a space where there is enough space to install additional solar panels later on.

To get the factual solar power installation, you are meant to mount the solar panels on a rooftop that faces where is the sun is coming from. This means that if you stay where the sun rises in the west, your solar energy system should look to the west to get the best exposure.

3. Ensure your roof is free from any shade or blockages. Examples of shades that can block or obstruct your solar energy system from sunlight include trees, buildings, and so much more.

The point here is that having a single solar panel in the shade can obstruct your entire solar panels and stop it from functioning well. As a matter of fact, whenever you are installing solar panels, ensure that the shade will not emanate when seasons alter.

Solar panel installation should be done not nearer than 12” from the roof edge and 16” from the roof space.

4. Before your solar power installation, you have to install brackets on mount rails or sloped roofs on flat roofs. You can purchase solar panel mounts in any reliable solar store.

The purchased standoffs for the rails or brackets should be tied or placed to the home’s trusses or rafters, not only the sheathing. You should only use solar installation brackets on sloped roofs. However, the slope must be well placed, which provides the panel with enough and direct sun exposure.

You can also use a mount rail system for your solar power installation to place the panel at any angle you know will have direct sunlight access. You must place the whole solar panels at similar height and angle so that the voltage can produce the same energy.

Also, ensure you use roof sealant on the spot you drilled the screws to the roof while joining the mount rails or brackets (NB: This will prevent rainwater from entering into your roof holes) . Adhere to the directions that follow the rail system or brackets when you are fixing your solar panel system.

5. Another vital point to know is to join your solar panels by raising them over your roof level. Furthermore, users can place them on the mount rail system or brackets and tighten them to the rail system or bracket. Make sure your solar panels do not fall off your roof while trying to attach them.

6. After fixing your solar power system successfully, you should then join your solar panel to your roof, depending on how you need it to generate power. Ensure your entire wires are waterproofed and well insulated (NB: You can waterproof your solar power system by wrapping them with black electrical tape) . To avoid shock when fixing your solar power system, try to join a wire to the ground.

7. After joining and aligning your solar panels together, you should mount conduit under the panels, leading to the junction box and through to the house's side and the initial photovoltaic part in your system.

8. Ensure you use wiring entailing three wires, namely: positive, ground wire, and negative. You should check that no wires are connecting with the main roof. Installing conduit on the entire wires that emanate from your solar panels is important to shield them from sun and rain.

9. The subsequent thing to perform is to fix your entire photovoltaic components while following the manufacturer’s product's instructions. Then proceed to fix your inverter, as well as other photovoltaic parts. Ensure your area is not wet and spacious enough for air to pass through.

The above point is crucial, especially considering that you have a battery box.

10. Run the power or energy from your inverter into your home’s AC breaker panel. You can easily carry this out by turning off the primary breaker and remove energy source from the DC and AC power source.

Proceed to join your inverter to your Alternating Current breaker panel. Also join the PV wires to the Direct Current disconnect switch and wait for the primary Direct Current disconnect. After that, you can connect the main DC disconnect to the inverter.

Once you are done with this, you can switch on the DC/AC disconnect switches and breakers. Then, wait for power to be shared from the AC breaker panel to your household’s connected electrical components.

Assuming you are wiring through the walls, ensure a conduit is used to guard yourself against short circuits and shock. Meanwhile, if you want to wire outdoors, use a PV conduit over the wires, alongside duct seal or waterproof fittings to stop water from entering.

Remember to install another minor panel box close to the major one whenever you want to share solar energy with your electric industry.

CHAPTER TWO

How to design and install a solar power system

Designing and fixing a solar power system will save you the stress of spending a whole lot of money. However, you should know that installing a solar power system by yourself is a herculean task.

Meanwhile, we have compiled a detailed installation guide to assist you through designing and installing a solar power system.

STEP 1: Preparation and Safety

The first step to successfully installing a solar power system is to have a well-to-do plan and safety measures. You can carry out some steps before unpacking your purchased solar system.

You are expected to do the following before unpacking your new system:

- Reading the safety guidelines to ensure a safe installation process

- Buying materials not assembled in your solar power system containment (materials including necessary tools, wires, others)

- Be sure if everything is right.

Important materials to buy

Some important materials might not be included in your solar power system shipment. These materials are needed if you want to fix your new system successfully.

The important materials you require to aid your installation process include:

- Wires

- Sub-panels and AC breakers

- Splices and junction boxes Fuses and AC disconnects

- Meters and conduits

- PV meters

- EMT vs. ENT conduit

- Mounting materials (Ground mounting or roof mounting)

For ground mounting, it needs concrete and bracing of 3-inch mechanical tubing. Installers also require lumber to build a frame to hold the pipes while the concrete dries.

In roof mounting, you have to purchase many roof sealant tunes to avoid wind damage and leaks. Ensure you purchase a roof sealant that fits in perfectly alongside your roof material. Lastly, get a 1/8 inch drill and 7/16 inch deep socket if you will ply the roof mounting route.

Unboxing your solar power system

After purchasing the necessary materials, the subsequent phase is to unbox your new system and check for any missing equipment or components.

While checking and unboxing your system, ensure you read the guidelines and plug the batteries on a charger immediately because they can spoil if unused for long periods.

Get your safety equipment ready

A solar power installation process involves climbing on rooftops, electrical work, and heavy lifting. This means you should always watch out for your safety to avoid any injuries, cuts, or even internal hits.

Adhere to the safety measures listed below:

- Take away metal jewelry, including necklaces, watches, and so on.

- Ensure you wear long sleeves if you are going to mix concrete. This will prevent you from burning your skin.

- Ensure you use safety harness and roof anchors if you mount the solar panels on your roof.

- Wear recommended and useful gloves, eye protection, and boots.

- Contact the local authority if you will have to dig the ground into mounting your solar power system to avoid puncturing electrical lines or drainage pipes.

- Always be with a multimeter.

Backfeed breaker installation (For Grid-Tie)

Grid-tie solar power systems need a back feed breaker. This device includes your central breaker panel that allows your system to feed the power it produces into the utility grid.

You may want to fix a solar back feed breaker at the other end of your breaker panel from the grid input breaker. Going further, you also have to arrange the circuits in the breaker panel to input the solar breaker in another place.

Follow the steps below to learn how to install or fix a backfeed breaker successfully:

1. Know the breaker size that is needed.

2. When working, ensure you stand on a rubber mat or plywood to be far from the ground.

3. Arrange and compile the voltmeter and tools beforehand.

4. Close down the branch circuit breakers.

5. Also, shut off the primary circuit breaker.

6. Take away the panel cover.

7. Ensure you test the wires using a multimeter to be sure no current is active.

8. Disconnect the breaker wire, which you removed from the load terminal.

9. With care, remove the previous breaker and watch how it's placed.

10. Take the new breaker and insert it into the same position.

11. Join the well-cut solar circuit wires to the breaker terminals.

12. Check for any issues and tighten all terminals.

13. Substitute the panel cover.

14. Turn on the main breaker.

15. Turn on the branch breakers (the solar panel should be the last).

16. Lastly, test the breakers to be sure if everything works fine.

STEP 2: How to mount your solar panels

When you are done wiring, the following step is to mount your solar panels on either your roof or ground.

We will start with mounting your solar panels on the roof. Here are five important steps to take when looking to mount solar panels on the roof:

1. Find and mark roof rafters.

2. Then install roof attachments to ensure your rails are well-positioned.

3. Install racking rails.

4. Raise or lift the panels over your roof.

5. Mount your solar panels on your rails.

(roof mounted solar power system)

1. Find and mark roof rafters

You used bolt your roof rafters. Look below for the few items you need in this step:

- A stud finder

- Visual location

- Echolocation

- Exploratory drilling (Use this method if the former methods fail to work)

- Chalk lines

2. Install roof attachments

When done finding your roof rafters' location, you need to begin installing the attachments that will make the mounting rails well positioned.

This process will be reliant on the roof you have. We have compiled the necessary steps to follow based on the popular roof types.

(IronRidge rails mounted on the roof)

Spacing and layout information

Your flashings should have enough space to align with the mounting holes on your solar power system. You will find the exact distance between the mounting holes on your panel spec sheet.

Further, stagger the flashing layout to make them change between the lowest and upper rail. Lastly, share the flashings equally across each of your roof rafters.

Metal roofs

Metal rooftops uses roof clams that join onto a bolt. Numerous clamp configurations are different depending on your roof.

Tile replacements

If you purchased a tile replacement system, you have to replace the tiles on your roof with a tile replacement flashing.

Tile hooks

Tile hooks go beneath the shingles and tighten to the rafters. Furthermore, a vertical hook offers clearance from the roof tiles.

This particular installation might need a few tiles cutting, but you can count on them.

STEP 3: Racking rails installation

In this step, you have to attach the racking rails. Follow the steps below to complete this process successfully:

- Carefully measure and slice the rails on the ground.

- There should be enough space to match the distance between the mounting holes on the rear system frame (NB: You also have to space the flashings) .

- Attach the rail to the flashing with hardware.

- Ensure you use a level to ensure the rails are the same.

- Then tighten the rails with a torque wrench.

- Join plastic end caps to keep away insects likes spiders from the rails.

- Join wire management clips to the rails.

- Install grounding equipment while installing your rails

- In a fresh row, ensure you allow for enough space.

STEP 4: Mount panels on the roof

Step 4 requires you to mount the solar panels on the roof. However, before you get started, do not forget that you need to be extremely careful not to get hurt.

If you chose to use lifting methods, you must get some equipment to assist you. Here is some equipment to use:

- Scissor lift

- Ladder lift

- Scaffolding

- Boom lift

Follow the steps below to mount your solar panels on the roof successfully:

1. Position the panel to match the mounting holes alongside the rails.

2. Ensure you use the IronRidge clamps to position the panel. (NB: You can begin with the end on the external edge and place the T-bolt in the slot rail) .

3. Torque the Universal Fastening Object clamps with stopper sleeves.

4. Insert the next pair of UFO clamps on the inner edge of the initial solar panel.

5. Position the subsequent panel on the rails and make sure that the clamps are in the middle of the two panels.

6. Make tighter the clamps.

7. Go through this process again and again for every panel in your selection.

Ground Mounting

(Ground installation ongoing)

If you decide to mount your solar power system on the ground, you should follow the steps below:

1. Build a foundation

Although ground mounting solar panels is different from roof mounting, a few of the same steps still apply. First of all, you need to build a solid foundation to mount your racking rails.

Ground mount racks make use of IronRidge, and you have to pour concrete to make this step possible.

2. Install racking rails

Your racking information will identify the spacing and rail size for your solar power system. Always recall the below instructions:

- To begin a new row, ensure you leave spaces on both size and a 1-inch clearance gap between the two panels.

- The IronRidge ground mount system uses a rail connection bracket that joins the rails to the horizontal support pipes with U-bolts.

- Lastly, space the rails to make even the distance between the mounting holes on the solar panel rear.

3. Mount panels

(Ground mounted solar power system)

After installing racking rails, the last step is to mount your solar panels. Follow the steps below to mount your solar panels:

1. Position the panel to ensure the mounting holes match with the rails.

2. Use the IronRidge UFO clamps to ensure the solar panel is well-positioned.

3. Using stopper sleeves, ensure the UFO clams are torqued.

4. Insert the subsequent pair of clamps on the inner edge of the initial solar panel.

5. Position the subsequent panel on the rails.

6. Join the clamps between the panels and tighten them.

7. Go through this same process for every panel.

Batteries

You have three battery types you can install on your solar power system. They include:

- Sealed Lead-Acid Battery

- Lithium-Ion Battery

- Flooded Lead-Acid           Battery

NOTE – While installing batteries, ensure there is enough ventilation, and the battery case shouldn’t touch glue or cement materials. Lastly, ensure you avoid disassembling or touching the battery's inner part or risk being shocked.

How does solar energy work?

A solar energy/power is also referred to as a solar module. It is a combination of a glass case unit, a layer of silicon cells, wiring that sends electricity from the silicon, and metal frame.

As most science readers will know, silicon is a nonmetal that consists of conductive properties that absorb and convert the sun into useable electricity. Once light connects to a silicon cell, the light makes the electrons in the silicon cell move, leading to a stream of electric current.

This is referred to as the photovoltaic effect, and it labels the whole functions of solar panel technology. The science of producing electricity while using solar panels is dependent on the function of photovoltaic. Initially, it was discovered by Edmond Becquerel in 1839.

It is a property of particular materials, identified as semiconductors, that permits them to form an electric current when there is direct sun.

You can see how the photovoltaic process works in the following steps below:

1. There is a solar radiation absorption in the silicon photovoltaic solar cell.

2. Once the sun’s rays connect with the silicon cell, there would be electrons movement, leading to electric current flow.

3. Wires grab and provide energy to the direct current electricity to a solar inverter. In turn, it is then converted to changing current electricity.

The cost of solar power

Due to a rise in solar panel efficiency, the rate of purchasing solar power has been reduced. In the last ten years, the price of installing solar power fell more than 60%. In fact, numerous industries have predicted that the price of purchasing solar power will continuously drop in later years.

Furthermore, depending on where you reside, numerous incentives or rebates for solar power might also have a say in reducing solar power costs. Around the world, the federal investment tax credit is the main incentives that you can receive if you need solar power.

It also lets you reduce 26% of the price of installing a solar system from your federal taxes.

Meanwhile, these incentives will not stay for long because it may disappear. Besides, several utilities and states offer an incentive like net metering.

CHAPTER THREE

Is solar power renewable?

Solar power is a less-costly, clean, renewable power source that you can find worldwide. When you see sunlight on the earth's surface, there is the chance of a spot where you can produce solar power.

Because solar power emanates from the sun, it denotes a source of power. Renewable energy technologies produce electricity from unlimited and countless resources.

For example, compare generating electricity with renewable resources to producing electricity with fossil fuels. It will take some thousands of years for gas, coal, and oil to form. This means that every time any of the resources are burned to form power (electricity), the finite resource goes nearer to exhaustion.

A renewable resource like hydropower, solar, and wind produce electricity and does not reduce the above resource. You will always find the sun shining on the surface of the earth after converting sunlight into electricity. Furthermore, you will also find an infinite amount of sunlight to change into electricity for later use. This explanation is what makes solar power renewable.

Pros and cons of solar power/energy

The sun is a powerful energy source, and installing solar power can cause a significant change to the earth. While solar power has been evaluated and condemned to be costly, it still has numerous advantages for our surroundings.

Here, we have compiled the advantages and downsides of solar power.

Pros

1. Lowers electricity bills

Because you will meet a few of your energy needs with the power from your solar panels, you do not have to fund your electricity bills. The amount of money you will save on your electricity bills will depend on the size of your solar power and electricity usage.

Besides, you will save on electricity bills and get paid for more than enough energy/power you give back to the grid.

2. Renewable energy source

One of the essential advantages of using solar panels is that solar energy is a renewable energy source. It is used in virtually all places worldwide, and you can find it everywhere. The human race can't lack solar energy.

As long as the sun continues to shine, we will continue to have solar energy. According to scientists, the sun will be around the earth’s surface for a minimum of 5 billion years from now.

3. Technology enhancement

Technology in the solar panel area is consistently developing for the future. New developments and enhancements in nanotechnology and quantum physics can raise solar panels' effect and significantly increase the power generation of the solar energy system.

4. Reduced maintenance cost

Solar power systems do not need too much maintenance. What you only have to do is to keep them clean. This means that your solar power system must undergo cleaning exercise three or four times a year. You can contact a reliable and professional cleaning company to clean a solar power system.

The majority of solar panel producers offer up to 25 years warranty for sold solar power systems. Asides from the solar panel, the inverter should be changed after about ten years because it consistently works to change solar energy into electricity.

Lastly, you can also replace the cables to ensure your solar power system works at its best.

5. Different applications

Solar power is also used for different and multiple reasons. For example, you can either choose to generate heat or electricity.

Furthermore, solar power can also generate electricity in places without any energy grid, power satellites in space, and filter water.

Another purpose of why solar power is used is to join materials used to build houses.

Cons

1. Uses too much space

One of the downsides to using solar panels is that it uses a lot of your available space. The more power you want to generate, the more solar panels you require to absorb enough sunlight.

Solar PV panels need enough space, and some roofs are not large enough to contain the number of solar panels needed. On second thought, you can install a few of the solar panels in your yard. However, these panels need to have a direct connection to the sun.

Meanwhile, if you lack space to install the solar panels you want, you can choose to install lesser solar panels just to have enough power.

2. Price

The price of buying a solar power system is too much. Paying for a solar power system includes paying for inverter, wiring, solar panels, batteries, and installation.

Nonetheless, solar technologies are increasing every day, so it is only a matter of time before becoming very affordable for the middle classes.

3. Linked alongside pollution

Although pollution associated with solar power systems is not so much compared with other energy sources, solar power is still linked to pollution. Installation and conveyance of solar power systems have been linked with the discharge of greenhouse gases.

You would also find some harmful materials while a solar photovoltaic system is undergoing production, and it is capable of causing havoc to your surroundings.

4. Depends on weather

Solar energy is mostly dependent on sunlight to generate electricity and heat for maximum efficiency. However, solar energy is still generated during rainy and less-sunny days, but the efficiency is pretty much low.

The thermodynamic panels are an excellent choice to look into if you want your water heating solution to be effective at night.

Photovoltaic Cells

(How photovoltaic cell works)

Photovoltaic cells use semiconducting materials, and when it is hit by sunlight, it produces little current because of the photovoltaic effect.

Additionally, solar power panels form photovoltaic cells when energy is converted from the sun. Most photovoltaic cells are made of silicon semiconductors, and they come in contact with arriving photons to produce an electric current.

The photovoltaic cells can be kept in a solar power system and directed to face the sun. In homes, solar panels are usually placed on the roof to produce electricity for home appliances.

Solar Thermal Power Plant

(Solar thermal power plant)

Unlike photovoltaic cells that convert energy from the sun into electricity, solar thermal power plants are electricity produced plants that use energy from the sub to cause heat to a fluid.

The resulting heated fluid then sends its heat to water and causes superheated steam. Consequently, the stem is used to change turbines in a power plant, thereby transforming mechanical energy into electricity.

This generation type is similar to electricity generation that explores fossil fuels. However, it does not burn fossil fuels; instead, it heats the steam under the sun.

The systems use solar collectors to focus the sun’s rays on a particular area to gain high temperatures.

CHAPTER FOUR

Parts of the solar energy system

There are other important components of a solar energy system apart from the panels. To produce your energy or power, you require a total package of a solar power system.

Here are the important components of a solar power system:

1. Racking – This component is crucial since it is the foundation for your solar power system.

2. Inverter – The reason of an inverter in a solar power system is to convert the energy or power to a format that can generate power for your home appliances.

3. Solar panels – Solar panels pull or drag energy/power from the sun directly.

In addition, you further require a method to store the power produced by the solar panels. On the one hand, if you can gain entry to the power lines, you don’t need any extra tools. You can generate it into the utility grid and use it another time.

However, if you don’t have the grid, you need to get extra components. The parts include the following:

1. Charge controller – Charge controllers help to control the way batteries charge from the solar power system.

2. Batteries – It is used to store the energy you have produced.

Batteries and charge controllers are connected by little parts such as fuses, disconnects, and wiring. Lastly, you are allowed to inched tools to watch your solar power system’s output online.

This will assist you in solving any problems with malfunctioning tools or shading.

Difference between grid-tie vs. off-grid solar?

The initial thing to consider and decide when you want to purchase a solar power system is if you need a grid-tied or off-grid solar system.

Both of them have a unique advantage they serve. Let us start with the benefits that grid-tie systems serve their buyers:

First of all, Grid-tie systems help you save some cost on your electricity bill. It does not cost much at all, and it is way better than purchasing electricity from the utility company.

In fact, the grid-tie system is often recommended to all by default under the condition of connecting to the utility grid. If you can access power lines, then you should get a grid-tied system.

On the other hand, off-grid solar is best for generating power for remote properties while finding it difficult to access power lines. One downside to an off-grid solar system is that it cost more because of the inclusion of batteries.

As stated earlier, the off-grid solar system's principal purpose is to generate or produce power for a remote area.

If you are confused between the grid-tie and off-grid solar systems, there is also a third solar system, a combination of earlier systems. The third system connects to the grid, and it also contains batteries. According to solar companies, this third system is known as energy storage or battery backup systems.

Here are two major advantages of the third system:

- It stores energy which you can use or decide to sell another time. This option is necessary mostly if you stay in an area that does not have net metering, has high demand charges, and uses rate time.

- It sores backup power for situations where is a power outage. This benefit is useful, especially if you stay in an area with harsh weather or a not trusted power source.

What’s more, energy storage systems offer additional rest and usefulness from the electricity generated. You decide whether the energy storage systems are right for you to send your money to get.

What is net metering?

Grid-tie solar systems keep the power produced in the public utility grid. As a result of this, the utility company pays you for the generated power. The payments can be gotten to take power from the grid whenever sunlight is yet to be out (probably during the rainy season or at night).

All utility companies have their policy, which determines how solar system clients are charged for power and paid. The policy between the customer and the utility company is referred to as a net metering policy.

In several situations, the utility company will purchase and sell the electricity at a similar cost. However, some utility companies might purchase power from solar system customers at a lesser price, affecting their return on investment.

The reason above is why it is necessary to call your utility company and know their terms of the net metering policy before choosing to sell power to them.

CHAPTER FIVE

What is solar power made of?

According to solar system experts, solar cells are produced from silicon, a chemical element with conductive properties. When silicon is exposed to light, its features are altered, and there is the production of an electric current.

To further break what solar powers are made of, we will look into what a cell represents. A cell is a little square of silicon (up to 6” x 6”).

In turn, solar panels are produced by laying out a grid of the cells on the top of a protective back sheet and closing them with glass on its front. It requires several panels to give power to an office or home.

An array is referred to as a collection of panels in your solar system. Furthermore, panels wired into a similar inverter are called a string of panels. Most inverters contain a large string size, and it has a maximum number of panels they are allowed to support.

For instance, you might have a solar power system containing two inverters supporting two strings of ten panels each, and it collaborates to form a 20-panel array.

How long do solar panels last?

A high number of manufacturers are indeed based on warranty that produced solar panels will be a minimum of 80% effective for about 25 years and thereabout.

Meanwhile, when the warranty of 25 years elapses, the solar panels won’t shut down, but they will only be generating low output. For instance, a solar panel with 300 watts would generate 240 watts of output when the 25 years elapse.

According to the National Renewable Energy Laboratory (NREL) research, it was revealed that 75% of solar panels produced went beyond the 25 years warranty. This means that solar panels are likely to be reliable and effective than earlier thought.

On the other hand, other components such as batteries and inverters do not last as much as solar panels. You are expected to replace other components such as batteries and inverters at least once after their warranty elapses. In addition, the replacements should also be considered in the full prices of the existence of the solar systems.

In a normal situation, inverters should last in a range of 10 to 20 years. This means you are expected to change your inverter once in 20 years or so.

Lastly, if you have batteries in your solar power systems, it is also expected to be changed. Depending on its maintenance level, lead-acid batteries may last between 3 to 7 years. Meanwhile, lithium batteries are more efficient as they last between 10 to 15 years with good usage.

How big are solar panels?

Solar panels come in two different and standard configurations, identified as 72-cell and 60-cell. Depending on your home roof, you should know the type of solar panels you will choose.

72-cell solar panels are measured 39” by 77” while 60-cell solar panels are measured 39” by 65”. In the real world, these two dimensions can change by nearly or precisely an inch. The cause of the change or fluctuation is because manufacturers use dissimilar frame sizes.

However, the 72 and 60 cells are the standard versions in the solar panel industry. In addition, you can find smaller options for RV / mobile use. Companies that include Panasonic are testing larger 96-cell solar panels; however, the larger sizes are not currently popular enough to be classified as standard.

CHAPTER SIX

Types of solar panels on the market

Two major solar panels are common on the market. These two common main solar panels include:

- Polycrystalline solar cells

- Monocrystalline solar cells

Polycrystalline solar cells are developed by combining several silicon bits into one cell, while monocrystalline solar cells are cut from one silicone source. Since the mixture of polycrystalline solar cells is not pure, they are likely to have less effect on usual circumstances.

On the other hand, this is not a challenging and quick rule because some other factors affect social cell output. There are other new technologies to watch out for, such as bifacial and film panels, asides from polycrystalline and monocrystalline solar cell panels.

How is solar power efficiency measured?

Most people mainly misinterpret the theory of solar panel efficiency. Several solar panels feature an efficiency rating of about 15 to 25%. According to solar experts, these numbers are low and do not command anything at all.

You may hear people say they only had 20% of power generation from their panel in some situations. What they are unaware of is that the 20% power is deficient and useless.

According to many, the hypothesis is that a 100-watt panel will generate a power of 20 watts. Meanwhile, that is not the perfect explanation of what solar power efficiency means.

In the real sense, the solar power efficiency rating is measured by how much the sun’s likely energy is converted or changed to solar power. With the same instance, a 100-watt solar panel with a 20% efficiency rating would take 20% of the likely 500 watts of continuous power emanating from the sun.

Well, do not worry a lot about solar power panel efficiency. The single significant advantage to get solar panel efficiency is that they contain added solar in less space.

The period you need an increased solar efficiency panel is when you want to build in a tight space. But then again, you should not get worried because you can build a large area using less efficient panels.

Inverter – Its function?

A solar inverter simply changes direct current into alternating current. Also, a solar panel produces direct current power; however, most household appliances work on alternating current power.

The inverter here is to take the energy you produce and convert it into a layout that can power your household electrical appliances. Solar inverters come in different types, namely micro inverters and string inverters.

A micro-inverter pairs with one solar panel to control direct current to alternating current power conversion for a single panel, while a string inverter inputs a string of panels that connect into one unit.

In a string inverter, panels are wired and combined in series, and the edge chain is connected to the inverter. Several inputs can be used with string inverters.

You can find the detailed meaning of string and micro-inverters below.

Micro-inverter: Meaning?

Micro-inverter systems do not have a centralized invert. Instead, it has multiple panels joined to its different micro-inverter.

Panels in micro-inverter can either be removed or joined without affecting the solar system efficiency. Micro-inverters also offer similar control and monitoring abilities presented by power optimizers.

CHAPTER SEVEN

String inverter: Meaning?

String inverters are the easiest and less costly inverters you can get. Strings panels are wired in groups, and it has its panel connected to the subsequent panels. The last of the panel connects into a string input located on the inverter’s body.

The wires are connected so that each panel in the string is on a similar circuit. This means each panel in the string produces the same performance. Assuming the output of a single panel drops, other strings will experience the same problem.

String inverters are best used if your system is receiving adequate sunlight. If obstacles like trees are blocking your panels, you get an inverter with a power optimization technology to lessen the energy loss.

The difference between a micro inverter and a string inverter is that micro inverters do not have a single inverter. As a substitute, each solar panel is connected to its different micro inverters.

Power Optimizers: Meaning?

Power optimizers are usually joined to your solar panels, making the system control each solar panel’s output freely from other strings. If one panel is not producing enough power, the power optimizers make sure the other string panels do not suffer the consequences.

It is often recommended to include power optimizers to lessen shade from overcast weather and obstacles.

Does solar power need batteries?

Batteries are elective for grid-tie systems but compulsory for off-grid systems. Every solar power system requires a way to keep the power produced by the panels.

Using grid-tie systems can channel that power into the utility grid, which uses the grid as a large batter. According to the net metering agreement, the utility pays you for any reasonable contribution you make. The credits you get from utilities can be used to generate power from the grid when it is needed.

Because the grid serves as a power storage system, you don’t need batteries to make the grid-tie systems work. Meanwhile, off-grid systems are not the same, and they need batteries.

If you don’t have grid access, you will have to store your power, which means batteries are compulsory. In the case of off-grid, they are much more costly because of the addition of batteries.

However, off-grid systems are still cost-effective than other systems that require running power lines in a remote location.

CHAPTER EIGHT

How does the battery work with grid-tie systems?

Like mentioned earlier, grid-tie systems do not require batteries to function. However, using batteries for grid-tie systems still comes with its advantages.

The major advantage is that it provides backup power whenever the grid shuts down (NB: The grid can shut down anytime, especially in areas with unstable power grids or severe weather conditions) .

Usually, grid-tie systems do not guard against or prevent power outages. Because the solar system is connected to the grid, it must be configured before it shuts down whenever there is a power outage. This is important because it helps guard against utility works from touching live wires when working on the grid.

If your include power storage, your solar system can supply a little amount of backup power in a local battery bank to make the lights switched on while there is a power outage. Batteries include other advantages, like storing power for some time and giving it back to the utility whenever the rates are high.

Which battery is the best for solar power?

There are three different types of batteries for solar power. The classification of batteries for solar power is dependent on price. They include the following:

- Sealed lead-acid (SLA)

- Flooded lead-acid (FLA) and,

- Lithium-Ion

1. Sealed lead-acid

First of all, we begin with what the sealed lead-acid battery is all about. Sealed lead-acid batteries make use of lead-acid chemistry. However, they are well covered to prevent or guard against off-gassing.

These kinds of batteries are maintenance-free. This means that there is no need to check the batteries monthly. You should take a sealed battery if you want to pay extra for convenience sake.

2. Flooded lead-acid

These types of batteries make use of a tried and true technology that is over a century old. Flooded lead-acid need monthly maintenance to remain functional and up to par. The major assignment that concerns this battery is refilling the battery with distilled water, which goes away while you charge it.

3. Lithium-Ion batteries

This is a premium kind of battery for your solar power. They are not only maintenance-free, but they also charge way quicker than regular solar batteries.

All in all, Lithium-Ion batteries stay for a more extended period, and they have a deeper discharge cycle. They are quite expensive, but it can last up to 3 times longer than other solar batteries.

Lithium-Ion batteries are our pick of the bunch if you seek to purchase any solar batteries for your solar power system.

Which is best – Roof or Ground mount?

Have you been disturbed or worried as to where you are going to mount your solar panels? Did you know you can mount your solar panels on your roof of ground mount?

Well, the ideal option to mount your solar panels is on your roof, on top of your room. This is because solar panels mounted on rooftops are usually less costly to install. The reason is that the support beams help for the foundation for you to mount the solar panels.

You will also save some materials and labor work because you do not have to go through the stress of building a substructure to make the weight stay.

The second option, which is considered in this section, is mounting your solar panels on a ground mount. The ground mount is more like an aluminum framework or single metal built on your property to mount the solar panels.

Mounting solar panels on ground mounts are much more expensive than on roof mounts because you need to purchase the frame's pipe. However, the only bright side of ground mounts is that it is much easier to check for repairs and maintenance.

In roof mounts, you need to climb on the top of your roof to repair it whenever it develops a fault, but nothing of that sort is done in the case of ground mounts. If you are still confused to choose the roof or ground mounts, you should contact a reliable solar panel installer for the best advice.

CHAPTER NINE

Are pole mounts worth it?

Do you think pole mounts are worth the hype and the price? Do not worry about yourself because we would find out below.

Pole mounts are a tall pole that raises your solar panel higher away from the ground than a standard ground mount. Furthermore, pole mounts are perfect for snowy climates. This means that if snows always cover your area, you should use a pole mount rather than a ground mount.

The raised mount provides the solar panel with added clearance, which prevents the panel from getting buried in the snow during winter. In addition, pole mounts can be tilted at a steeper angle. This offers excellent assistance as the snow that has piled up will slide off the panels' front.

As a result, your solar panels will be without barriers, and it will generate a very high output for your benefit.

From our review above, it is seen that pole mounts are worth it because it comes with numerous advantages.

What size of a solar power system is needed?

Your solar power system size depends on the power you use. Generally, power is measured in kilowatt-hours. To know where this is, check the details on your electric bill or your electric online account.

The exact solar size of a solar power system is difficult to ascertain, but with the help of some online tools, you should determine the particular size you need.

While using grid-tie systems, the fastest way possible to receive estimation is to use a reliable solar calculator. The simplest way to use a solar calculator is to enter your location and power usage information, and the size estimation will be sent across to you.

In terms of off-grid systems, it usually weighs your everyday power usage on a load evaluation sheet. Consequently, you can then use a reliable off-grid solar calculator to determine the solar power system's right size.

Meaning of solar trackers

First of all, trackers are mounts that automatically go with the sun's position in the sky to make the most of the generation from your solar panels.

Meanwhile, it is not advisable to get one for yourself. Here’s why tracking hardware is costly than a solar panel. If you want more power generation, you should add some more solar panels, thereby saving more money.

The only omission here is when you want to carry out industrial projects or take on a substantial commercial business. The hardware will become less costly when it is carried out on a broad commercial basis.

CHAPTER TEN

How long will the solar panels last?

Solar panels are designed from silicon. It can last for a minimum of 25 years if you maintain it as it should.

On the other hand, solar panels lose their effectiveness as time goes on. So, you would have to replace it once you discover that efficiency has gone.

Meaning of string sizing?

A string panel is a collection of panels wired into one input on your inverter. In normal circumstances, inverters usually have a voltage input limit; a component of the system design process will calculate the right string size to get the best out of generating power without tampering with the inverter. By not tampering with the inverter, we mean not overloading the inverter with more than enough power.

String sizing is dependent on some factors such as specifications of the products you use and local temperature. It is also possible for you to calculate the right string size for your solar power system, so you don’t get a larger or smaller one.

Is it possible to install solar power myself?

Indeed, you can install a solar power system yourself. Even if you are without a DIY experience, installing a solar power system is still possible.

Nearly all solar parts simply plug and play, which means all cables snap into a particular port. If you can carry out typical tasks, such as tightening screws and carrying heavy equipment, you can easily install your solar power system without any help.

However, the major challenge experienced if you seek to install a solar power system yourself is carrying out the final electrical hookup to the service panel. A few DIYers prefer to lease a licensed and professional electrician.

It is not a wrong choice because you will still save more money than you ever expected.

CHAPTER ELEVEN

How much do solar power installers cost to hire?

Generally, professional solar power installers charge different prices depending on several factors. The leading factor determining the cost of solar power installation is the accessibility of professional solar power installers in your area.

For example, the installation cost will not be high in areas such as Los Angeles because the region contains numerous professional installers fighting to lead the way.

It is revealed that major qualified solar power installers charge about 75 cents to $1.25 per watt of solar for their hard work on a standard price range. This means that if you have a 5 kilowatts system, you are expected to pay $3,750 - $6,250.

NOTE – The cost stated above for 5 kilowatts solar power system is only for the solar power installers' handwork, and it doesn’t include the cost of purchasing the solar power system. Consequently, the cost will significantly increase if the solar power system is considered.

Is solar power a good investment?

Since solar power systems save us money, then it is considered a good investment. The monetary advantage is one of the primary reasons why households purchase the solar power system.

Once you have the solar power system installed on your roof, it will continue to generate electricity from the sun without any extra cost for as long as 25 years consistently.

A kW hour of electricity used from the solar power system is equivalent to a kW hour of electricity that you do not have to purchase from electricity industries. You will save more than enough money if you use the electricity generated from your solar power systems than purchasing from retailers.

Even with the rapid increase in electricity costs recently, the need to save more money from having solar power systems is on the rise.

Furthermore, solar energy is a good way to generate clean power for your home and less of your household’s carbon footprint. In our current world’s state, we are more often than not, eliminated from the electricity source we use, and we do not know the amount of pollution we cause.

So, without a doubt, solar power is a terrific investment cause, and it will continue to remain that way for years to come.

Does the solar system need maintenance?

Of course, the installed solar power system needs maintenance at specific periods. The maintenance is essential so that the solar power system can continue to generate high output, leading to greater efficiency in electricity generation.

Meanwhile, solar panels installed higher than 10 degrees angle is likely to self-clean when rainfall occurs, so not too much maintenance is needed.

To obtain the best output or maintenance, we often recommend that you contact your installer or a solar power company to inspect your system every 18 months.

CHAPTER TWELVE

Solar power system troubleshooting

A well-installed solar power system is not free from slight or severe damages. Solar power systems are due to begin experiencing issues once it starts getting to 20 years of usage.

During that period, little or harsh problems may emerge, which may need you to repair your solar power system or even get a new one.

Below, we have outlined several troubleshooting issues you may likely experience with your installed solar power system and what you can do to fix the issue.

My solar power system does not work – what do I do?

In some instances, your solar power system might stop working or have some issues. The question is now, what do you do? Unless you are a technician, you may not have an idea of what to do.

However, we have compiled some of the things you can do if your solar power system encounters one problem or the other (NB: You do not have to be a technician to solve your solar power system's little problems) .

Here are some of the things you can do:

1. Be sure to check if the solar circuit breaker in your solar power system has tripped. If you are sure it has tripped, try to switch it on once more at night.

Meanwhile, if it trips the following day again, there might be a severe problem with it. In this case, you need to contact your supplier or a reputable installer/technician.

2. Check the solar power system output on the inverter for about three days to be sure if there is no generation of solar.

3. If the fault supersedes your capabilities, you should contact your first solar power system installer or supplier. You may even ask them to help you check the solar power system for the fault and fix the issue, if possible.

4. If you cannot contact any solar power system installer, you can always contact a local solar company.

5. Replace a panel or inverter if there is a fault beyond repair. However, this only happens if you previously purchased a cheap and less quality solar panel or inverter.

How to know if my solar power system is working fine?

Up to par solar power systems are trusted and should offer the best quality several years after its purchase. Although little wrong things happen in some rare situations, you may wonder if your solar power system is working fine.

Generally, your solar power system’s inverter has indication light. The display panel reveals the amount of electricity your solar system has generated on a particular day and the electricity it is generating currently.

In a case whereby your solar power system’s inverter is dead, there won’t be any display of light. At this point, you should know your solar power system is not working fine, and there is a fault.

Meanwhile, if your solar system’s inverter is switched off, you should check your power meter. In normal circumstances, you should be able to know if solar is exported through the electricity meter.

Also, your electricity bill will inform you if your solar power system is working fine. You can check and compare the previous solar power export number with the current solar export details. Assuming your exported kW/h has been reduced, you are consuming more solar power, or your solar power system is not working fine.

Can the solar panel be repaired?

If your solar panel has one form of issue or the other, it is best to avoid repairing it. Solar panels are fully sealed, and so repairing it may seem almost impossible.

Instead of choosing to repair your damaged solar panel, you should replace it entirely with a new sealed solar panel.

CHAPTER THIRTEEN

What should I do if my solar power system has a power outage?

If your grid is out of power, your grid-connected solar power system will go off. Now, what do you do if your solar power system has a power outage? Your solar power system has a power outage because your area or vicinity lacks power.

This means that if there is a blackout in your neighborhood, your solar power system will also have a blackout. Nevertheless, your solar power system will automatically turn on during day time when the power is returned to the grid.

On the other hand, if you have a battery backup system plugged into your solar power system, some tech equipment such as your fridge may be working with the batteries. In years to come, smaller size energy storage systems will be sold because many solar power system owners like to keep electricity they generate and use it during blackouts.

What should If my solar system has low output?

There are several reasons why your solar power system is giving out low output. However, some of these reasons can be repaired by your installer or supplier, depending on the issue's gravity.

Here are some of the reasons why your solar power system has low output:

1. The inverter is malfunctioning – A certified installer can repair this particular issue.

2. The panels are not installed in the right way to drag sunlight (NB: An installer can also easily handle this issue) .

3. The panels contain too many leaves, dirt, or bird feathers, thereby lessening the solar power system's productivity. You can fix this issue by removing the dirt or leaves from the solar system and get it to produce a high output.

4. Trees cover the panels during the day – You should clear or remove anything that is shading the solar power system during the day to get sunlight.

NOTE – If you cannot fix any of the issues above, you should call your original installer and fix your solar power system.

Do dirt and leaves affect solar power system efficiency?

(Leaves and dirt on a solar power system)

Leaves and dirt affect the efficiency of a solar power system. This is because leaves and dirt prevent the sufficient flow of sunshine to the solar system.

If you're sure your solar power system produces a low output, check to see if there are twigs, leaves, or dirt blocking its linkage with sunlight. On the other hand, heavy and clean rain can occasionally erase your panels and allow for a better output.

NOTE – Solar system owners shouldn't climb onto their roof to clean their solar power system themselves. Instead, you should always contact a solar company to do the cleaning. Here’s why you may think you have cleaned your solar power system, but you may have only ended up pushing the leaves and dirt much closer to the solar power system.

Meanwhile, in a solar company, their workers are professionals, and they know quite well what they need to do to ensure a higher output of your solar power system.

Generally, nearly all solar power systems are cleaned with water, but not anything harsh or rough. If there is no rain for a long time, then you should endeavor to contact a solar company every year to clean your solar panels.

Numerous solar installers offer maintenance services to inspect electrical connections and remove dirt from solar panels regularly.

CHAPTER FOURTEEN

Is the solar system right in a cyclone-prone area?

If you are getting sunlight on your roof, you can install a solar energy system. Cyclone prone areas are not different because sunlight passes and lies there as well.

However, we recommend that whenever you want to install a solar power system in a cyclone-prone area, you should ensure that a cyclone certified mounting system is also installed.

What is the difference between kW and kW/h?

kW is an acronym for kilowatt or 1,000 watts. It also represents power measurement. Solar energy systems are measured depending on the watts it generates every hour.

Additionally, solar panel rating is reached but can be tampered with because of the harsh weather conditions like dust, affecting panel efficiency. For instance, 12 x 260watt panels will generate a 3.12 kW system. It would be good to purchase a 3 kW inverter to charge the solar panel’s direct current voltage to the major supply voltage under normal circumstances.

How does solar energy compare to conventional energy?

In several countries, solar power systems generate electricity with the same cost of electricity from other conventional sources. If solar power electricity is the same cost as conventional energy, it is referred to as grid parity.

One illustration applies in Australia where grid parity is near several areas, and it has gotten to places with very high electricity costs. The further rise in electricity bills and the decrease in solar systems' price means that most houses with solar power systems are paid off in about seven years.

An effective solar energy system can produce power for over 25 years. Previously, governments worldwide have given monetary support for solar energy in many countries due to their vital role in preventing fossil fuel hope.

Additionally, solar power production costs have greatly lessened because of developments in the economy and technology.

CHAPTER FIFTEEN

Is the junction box behind the panel necessary?

An essential feature while installing solar panels is referred to as the junction box. It is usually joined to the solar panel rear, and it serves several purposes.

First of all, the junction box seals the solar panels rear where the inter-connectors are situated. This is important so that moisture cannot gain entrance into the junction box.

The junction box behind the solar panel is necessary because it houses connection points for the multiple cables that connect the solar panel. Other cables the junction box houses include diodes (it guards the solar cells).

The above points clearly showcase that the junction box behind the solar panel is necessary.

Can solar power be used for other applications?

Solar power can be used as conventional electricity that is distributed through the power grid. Furthermore, solar power is highly used in the applications below:

- Managing business, homes and for manufacturing purposes

In recreation area, solar power is used for the following purposes:

- Lighting street

- Powering home appliances

- Charging mobile devices

- Boating, caravanning, and camping

- Calculators and watches

- Powering computers

- Security systems

- Isolated telecommunication receiver stations

- Lighting billboard, and so much more.

Do solar power systems require a bright sun to work?

Solar power systems certainly need bright sun to work effectively. Solar PV panels are situated on the roofs, and they generate electricity by converting the sun’s energy.

The more power absorbed by the solar panel, the more electricity is being produced. Although power is being generated at night, the output is way lesser than the one generated on sunny days.

CHAPTER SIXTEEN

Is my roof suitable to install solar panels?

The most stress-free roof to install solar power systems is metal roofs, which are conventional flat or nearly 25 degrees. Alternatively, tiled roofs are not bad, but the tiles must not be fragile or old.

On slate roofs, they are not bad for installing solar power systems, but they are more complicated to install and expensive to purchase. If you prefer to use an asbestos roof to install solar energy systems, you should change the asbestos sheets or tiles prior to installing the solar system.

Generally, one-story buildings are more comfortable to install solar power systems than two or more story roofs. However, nearly all installers can still the systems even at higher heights.

It is recommended to cut down any tree near your roof that may lead to overshadowing, a case whereby leaves and dirt cover the solar panels and cause less output. Currently, installers use microinverters in overshadow conditions to increase the solar panel output.

Can I get any rebate when I buy a solar power system?

Certainly, you can receive rebates on the solar energy system. Meanwhile, these rebates have been massively developed in the past years, and it will still be evolving.

To get any rebate, you should contact your solar panel retailer.

Is it beneficial to purchase in solar power system?

The primary reason why many people buy solar energy systems is strictly based on money. If the system installed in your home, you no longer have to worry so much about electricity because a solar power system generates electricity from the sun without extra cost.

In addition, a kW hour of electricity gotten from the solar power system is a kW hour of electricity that you do not have to purchase from the electricity company. You will certainly save more money if you are using a solar power system than from any electricity retailer.

In recent times, the increase in electricity cost has given rise to a solar power system's excellent benefits. More so, solar power is a perfect way of generating clean and massive energy for your home.

In our current world, most people are often erased from the electricity source we use, and we do not even know the amount of pollution we cause.

CHAPTER SEVENTEEN

Can solar power systems reduce electricity bill to zero?

The solar power system can reduce electricity bills in a household. The solar power system can also allow you to save thousands of dollars every year, especially in a large household.

However, achieving a zero electricity bill is almost impossible in every county, with Australia in particular. For example, Australia’s electricity is made through your solar power system, and it is also used in offices and homes. Solar power will save you the stress of consuming electricity from power companies.

Meanwhile, the cost is usually one-third of the price you will pay for electricity. If you want to have zero bill electricity, you have to export three times or more the number of units you import and add units to replace the bill's fixed charge side.

Furthermore, zero electricity bills need an off-grid system alongside batteries (NB: You can also get an extensive solar power system in your home, together with storage batteries) .

Tips before purchasing a solar power system

If you decide to purchase a solar power system, here are some tips you should consider:

1. Make your research about costs and brands

First of all, you have to carry out extensive research on brands and costs. For example, a few very less costly offers on the market, and these cheap deals result in low-quality equipment.

Do not forget that you have to get a solar energy system brand that can last up to 25 years (NB: This makes your financial investment worthwhile, instead of spending repeatedly) . It is also advisable not to engage with local installers because they might be looking to rip you off your money.

Instead, make your research online and locate a reliable and trustworthy solar power system brand at a reasonable cost.

2. Never get deceived by internet reviews

Sadly, many solar panels reviews on the internet are not real. Several website owners pay people to write fake reviews to pull customers to buy their solar power systems.

It isn’t challenging to write a text on a website and lie about the service offered to you. Instead of being deceived by internet reviews, ask someone who bought one before and how it is serving them.

3. Go through a few solar research

Before purchasing a solar energy system, you need to have some knowledge about the solar power system. You will easily get cheated if you have little or no idea about the solar system.

Look through the internet and get sufficient knowledge about the solar energy system before hitting the market to purchase one for your home or office.

4. Set a budget for yourself

Different energy systems vary in size, quality, and price as well. For instance, each kW of a quality solar power system costs about $1,300 - $1,600 for a residential solar system of 10 kW.

In addition, you can also see solar systems for a way less price of $6000 per kW. However, these cheaper solar power systems are not up to par, and they offer less productivity. You may regret it at a later time if you decide to save some dollars and buy a cheap solar power system because it may pack up.

Why not opt to invest in a solar power system that will still remain effective for a minimum of 25 years.

5. Check the certifications and panel types

There are amorphous, polycrystalline, and monocrystalline film options in some countries. Meanwhile, we suggest that you opt for the best of them, monocrystalline-type solar panels.

This is because the monocrystalline solar panel is the best technology, and it has remained on the global stage since 1970. Furthermore, monocrystalline is designed with a black body, and it is certain to blend well with your roof.

6. Inspect your roof and check the solar power system that can fit it

You must check your roof and determine the solar power system's size that can be placed on the top. A roof size calculator is perfect to check how large a solar power system can fit on your roof.

If you need the certainty of the size, you can contact your local dealer. Do not forget to leave some space for the solar storage battery for night time solar power use.

CONCLUSION

Unless you can’t afford a solar power system, you should consider getting one for your household or office. The cost of obtaining electricity supply in homes is becoming higher by the day, and a lot of people are not pleased with this development.

Although purchasing a solar power system can be expensive, it is still an excellent alternative to purchasing an electricity supply. Once bought and installed, you no longer need to be concerned about losing your electricity supply for a while (about 25 years).

All you need to do is monitor and clean your solar panels every five years to continue receiving the best performance. Solar panels take in sunlight and convert it into electricity, which powers your home appliances effectively.

If you are confused, this guide will broaden your mind on why the solar energy is becoming the leading power source and how you can go about installing it. Furthermore, this guide will take you by the hand on how to mount solar panels on your roof or ground.

Table of Contents

INTRODUCTION...............................................................................................

CHAPTER ONE.................................................................................................

What is Solar Power?........................................................................................

History of solar power...................................................................................

What you should know before installing solar power....................................

CHAPTER TWO.................................................................................................

How to design and install a solar power system..............................................

STEP 1: Preparation and Safety....................................................................

Important materials to buy............................................................................

Unboxing your solar power system................................................................

Get your safety equipment ready...................................................................

Backfeed breaker installation (For Grid-Tie).................................................

STEP 2: How to mount your solar panels......................................................

Spacing and layout information.....................................................................

STEP 3: Racking rails installation..................................................................

STEP 4: Mount panels on the roof.................................................................

Ground Mounting...........................................................................................

Batteries.........................................................................................................

How does solar energy work?........................................................................

The cost of solar power..................................................................................

CHAPTER THREE.............................................................................................

Is solar power renewable?................................................................................

Pros and cons of solar power/energy.............................................................

Photovoltaic Cells...........................................................................................

Solar Thermal Power Plant............................................................................

CHAPTER FOUR...............................................................................................

Parts of the solar energy system......................................................................

Difference between grid-tie vs. off-grid solar?..............................................

What is net metering?....................................................................................

CHAPTER FIVE.................................................................................................

What is solar power made of?...........................................................................

How long do solar panels last?......................................................................

How big are solar panels?..............................................................................

CHAPTER SIX...................................................................................................

Types of solar panels on the market.................................................................

How is solar power efficiency measured?......................................................

Inverter – Its function?...................................................................................

CHAPTER SEVEN.............................................................................................

String inverter: Meaning?.................................................................................

Power Optimizers: Meaning?.........................................................................

Does solar power need batteries?..................................................................

CHAPTER EIGHT..............................................................................................

How does the battery work with grid-tie systems?..........................................

Which battery is the best for solar power?....................................................

Which is best – Roof or Ground mount?.........................................................

CHAPTER NINE................................................................................................

Are pole mounts worth it?.................................................................................

What size of a solar power system is needed?...............................................

Meaning of solar trackers..............................................................................

CHAPTER TEN..................................................................................................

How long will the solar panels last?.................................................................

Meaning of string sizing?...............................................................................

Is it possible to install solar power myself?...................................................

CHAPTER ELEVEN...........................................................................................

How much do solar power installers cost to hire?............................................

Is solar power a good investment?................................................................

Does the solar system need maintenance?....................................................

CHAPTER TWELVE..........................................................................................

Solar power system troubleshooting................................................................

My solar power system does not work – what do I do?.................................

How to know if my solar power system is working fine?...............................

Can the solar panel be repaired?...................................................................

CHAPTER THIRTEEN.......................................................................................

What should I do if my solar power system has a power outage?....................

What should If my solar system has low output?...........................................

Do dirt and leaves affect solar power system efficiency?..............................

CHAPTER FOURTEEN......................................................................................

Is the solar system right in a cyclone-prone area?...........................................

What is the difference between kW and kW/h?.............................................

How does solar energy compare to conventional energy?............................

CHAPTER FIFTEEN..........................................................................................

Is the junction box behind the panel necessary?..............................................

Can solar power be used for other applications?..........................................

Do solar power systems require a bright sun to work?.................................

CHAPTER SIXTEEN..........................................................................................

Is my roof suitable to install solar panels?.......................................................

Can I get any rebate when I buy a solar power system?...............................

Is it beneficial to purchase in solar power system?.......................................

CHAPTER SEVENTEEN....................................................................................

Can solar power systems reduce electricity bill to zero?.................................

Tips before purchasing a solar power system...............................................

CONCLUSION..................................................................................................