Home Solar Power- All you need to know

June 2, 2021

Do you want an efficient and affordable power source? Then, solar systems are your best bet. Solar energy is abundant and renewable. Research shows that it can provide over 10,000 times the world’s energy demands.

By utilizing the sun’s energy and converting it to electricity for your home, you can limit fossil fuel dependence and join the fight against climate change.

How does Solar Power Work?


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Solar power is so effective that the amount that reaches the earth in less than two hours can handle the world’s total energy demands for six months and counting.

Think of the sun as a natural atomic furnace (or a reactor) that releases photons. Now, when these photons strike solar panels, the electrons in these atoms become loose.

Now, conductors are affixed to the positive and negative sides of the cells, and an electrical circuit is formed.

The electrons that flow through this circuit produce electricity.

A combination of cells produces a solar panel, and an assortment of solar panels produces a solar array that is often used in industries and large firms.

When you use more panels, you get more energy.

Now that you know how a solar panel works, your purchase decision may be based on price. How do you know the price for different solar panels?

Home Solar power system price

The price of a solar power system varies with the type. There are three types of solar power systems: on-grid, off-grid, and hybrid solar power systems.

On-grid systems

 They are also known as grid-tie solar systems. They are the most typical type of solar systems used in homes because they are cost-effective.

They don’t need batteries to work, and they run on either micro-inverters or solar inverters after being linked to the public electricity grid.

The excess power generated is transmitted to the grid, and you’re given energy credits.

The average cost of on-grid systems varies depending on how much power they can carry. For instance, a 1KW solar system ranges between $5000 – $6000.

The price is directly proportional to the power capacity. Batteries are only attached to on-grid systems in rare cases.

One disadvantage of these systems is that they can’t produce electricity when there is a blackout to protect lives and property.

Off-grid systems

 Like the name implies, an off-grid power system is not linked to the electricity grid, so it needs battery storage systems.

An off-grid power system is designed in such a way that it can produce enough power to last up to a year and have the battery capacity to power up everything in your home.

This is primarily useful in deep winter seasons when there is less sunlight.

This power system uses off-grid inverters and batteries, making them more expensive than on-grid systems. They are often used in remote areas.

Like on-grid systems, the cost depends on how much power they can carry, but they are more expensive than on-grid systems.

For instance, a 1KW costs between $12,000 to $15,000. The price is directly proportional to the power capacity.

Hybrid systems

 Hybrid systems are a blend of on-grid and off-grid power systems.

They have both solar and battery storage capacities and come in different forms and designs.

As a result of this, the system can store solar energy produced during the day, and when that is depleted, the grid can be used as a backup.

This way, individuals can enjoy the best of both packages.

The cost varies with power capacity. For instance, a 6 KW hybrid solar system costs over $12,000, and the battery costs over $8,000.

Now that you know the price of different solar systems, how much would you need to set up a solar power system in your home?

Let’s find out

How much does it cost to set up a home solar power?

Home Solar Power cost

The cost depends on the size of your household and your objective.

The amount of energy used to power a small home with fewer people won’t be the same as the amount used to power large homes.

For instance, most low-income households need 500 watts of power to run ventilators and essential appliances while conserving energy. Larger homes need about 1500 watts to support devices and save energy.

But, how do you know the number of solar panels you need for your home?

How many solar panels are required to power your home?

Home Solar Power

There is no point in installing just one solar panel.

If you want to reap the full benefits, you’d need more than one. Generally, a typical home requires between 20 to 25 solar panels to cover 100% of electricity demands adequately.

Your home needs depend on several things, ranging from geographical location, energy consumption patterns, panel rated power, panel efficiency, etc.

Three key factors can be used to estimate how many solar panels you need for your home: solar panel wattage, production ratios, and annual energy consumption.

Solar panel wattage: this is the electricity generation for a specific panel. This is calculated under ideal conditions. The range is often between 250 to 400 watts.

Production ratios: this is the ratio of the expected energy output of a system over time to the actual system size.

The numbers are 1:1 in extremely rare cases. If your place gets adequate sunlight, the production ratio will change accordingly.

Annual energy consumption: this is the amount of electricity your home consumes in a year.

It’s measured in Kilowatt-hours, and the number of appliances in your home can influence the values.

Now, several solar power systems in the marketplace can make decision-making tasks. How do you choose?

How to choose the right home solar power system

Here are three things to look out for to help you make a good purchase decision

Check for the solar panel efficiency

 For those who don’t know what solar panel efficiency is, it’s simply a measurement of how fast a solar panel can transform sunlight into electricity.

If you give the same amount of sunlight to the two panels with different ratings, one will outperform the other.

Look out for the power rating, temperature coefficient, and power tolerance. All these can tell you how much electricity the panel can produce. It’s recommended that you consult an expert on this.

Look out for warranties.

Good manufacturers place good warranties because they have confidence in their products. Look for solar panels that have warranties between 10 to 25 years.


While you may want to invest in high-quality, you also need to consider prices.

Premium quality solar panels are often costly, but you need to remember that not all the expensive panel are of premium quality.

Now, why should you go for a solar power system?

Advantages of home solar power systems

There are several benefits associated with solar power systems

Solar panels enhance the value of your home

Most people are interested in homes that have solar panels installed.

This is because it saves them the stress of installing solar panels all over again, but this comes at a price. Your home value increases because they have to pay more.

Solar panels limit your electricity bills.

The cost of electricity in recent times is alarming.

When you install solar panels, you produce your electricity, so you don’t have to depend on electric utility. Your monthly electricity bill is thus reduced.

It decreases carbon footprints.

Solar energy is renewable and clean.

Using it will reduce carbon dioxide emission and their effect on our environment. Solar energy doesn’t release pollutants into the atmosphere.

It’s a significant investment.

In the fight against climate change, most advanced countries worldwide give incentives to people who choose to use solar power to reduce carbon footprints in the environment.

Several solar incentives can provide you with profit while you save money off the cost of the system.

Rising energy costs don’t affect you.

Most homeowners get scared when their electricity bills come in because they have little to no control over how the utility electricity rate increases.

But with solar energy, you’re entirely in charge of electricity generation.

Now, what kind of appliances can be managed with solar power systems?

What kind of appliances can be run on home solar power systems?

All kinds of devices can be run on solar power systems as long as provision is made for it, from air conditioners, chargers, furnaces, inverters, lamps, street lights to phone chargers, cookers, dryers, watches, lasers, fans, etc.

Now that you know that most appliances can be run on solar energy systems, can you run your home entirely on it?

Can you run your home entirely on solar power systems?

It’s possible. You can run your home entirely on solar power.

Once you have the right solar panels and batteries, the cost of utility bills and maintenance reduce over time.

The cost of solar energy system installations has reduced over time due to improvements in technology, so it’s achievable.

Now, since solar panels work with sunlight, what happens at night?

Do solar panels work at night?

Solar panels don’t work at night.

Solar panels need sunlight to generate electricity.

Even though they can generate energy from the moon or even street lights, the output is often low. They become inactive at night and stop producing electricity.

However, they tend to generate excess energy during the day. So, solar batteries can be used to store energy that can be used at night.

Isn’t this amazing?

So, how long are solar panels expected to last?

What happens to the solar panel after long years?

Just like most technologies, solar panels produce less energy as time passes.

This is called the degradation rate.

The average degradation rate for most solar panels is about 0.5%, so solar panels are expected to lose efficiency about 0.5% yearly.

This is why warranties are essential.

Are you thinking of installing a solar system in your home? Keep reading.

How to plan the best home solar system?

Home Solar Power planning

Look into your home’s energy efficiency.

You have to look into how your household consumes electricity monthly.

You should know the total electricity consumption and affordable and easy-to-use alternatives. Look at the appliances, then lighting, heating, and cooling systems.

How best can you maximize solar potential?

PV technologies use direct and dispersed sunlight to generate electricity.

Still, the power produced by a solar system relies on the system’s size and how well the sun’s energy reaches the home.

There are several tools and mapping services that can help you to determine it.

What are your solar electricity needs?

Look at your monthly electricity bills. Find out which month you spend more and what causes that increase. Also, consider changes.

For instance, if you plan to get an electric car, your needs may increase.


Are you looking to power up your home with solar energy? E-Green Electrical will provide you with a free solar power consultation to help you choose the right power system for your home. Get in touch today


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