# How Many Solar Panels Do You Need?

There is no definite way to answer the given question. A proper answer lays in the quantity of consumed energy in a house: refrigerator, teapot, microwave, TV, washing machine, computers, air-conditioning, and dishwasher.

The number of solar panels in your best solar generator can be changed, the appropriate number of solar cells for SES can be calculated individually.

Some of the advantages of houses on solar power are obvious:

• the sun’s energy is infinite (the next 5 billion years for sure)
• it provides clean power
• no greenhouse gas emissions, plus this can save people money

Estimating how many solar panels to run a house are the best option, one should find out how much kWh is used per day according to bills.

A common solar panel unit produces up to 120 watts or 0.12 kW per day. To provide 7.5 kW, you need about 62 panels. One panel can be approximately 142 by 64 centimeters so the 62 panels will occupy approximately 65 square meters.

## How to calculate how many solar panels to run a whole house you need

To define the required number of solar batteries, add up several factors:

• The size of the roof;
• The quantity of electricity consumed per month;
• Amounts that are ready to invest in the project;
• The capacity that is specified in the contract for the use of electrical power.

A station only for personal use better to build according to the average monthly energy usage of the house.

We recommend a simple formula which helps to sum up how much solar panels you need for a house. For this you need:

1. Taking into account the area of ​​the roof, for example, let’s take 50 m²;
2. The area of ​​one solar battery, let’s take 1.63 m²;
3. Nest goes the power of the solar panel – let’s take the average for the market at 275 watts.

How to calculate solar panels for a house using the formula:

1. An area of a roof is divided by the area of ​​one panel: 50 / 1.63 = 30.67, rounded down, we get 30 solar cells.
2. Next, multiply the number of panels obtained by the power of one panel: 30 * 275 = 8250 W, again round off to the lower side and 8000 W or 8 kW per hour are released.

The result is a capacity of 8 kW with a solar panels quantity of 30 pieces, which will cover a roof of 50 m². Solar panels have no moving parts. They are part of a complete stationary system. Therefore, once they are installed, the only thing an owner should do is keep clean panels.