The residential energy storage solar power system usually has a power of 3-10Kw and an average cost of 2,000-8,000 US dollars. This is an economical investment for the househould solar PV module. If you are considering installing solar energy for your home, you may encounter many problems, including how many solar panels you need to power your home appliances.

For how to determine the number of solar panels, the following are some important reference elements:

Average energy use
First of all, you have to confirm your average daily electricity consumption to calculate the number of solar panels needed. The amount of energy used will vary according to the number of households, the number of appliances, and seasonal changes. We can determine this value by looking at last year's energy bill.

Solar panel output

How much energy the solar panels produce depends on household conditions, including how much sunlight you receive and the amount of shadow covering the roof. This number is called the rated power and is measured in watts. A typical panel produces between 250-400 watts.

The sunshine of your home

Your physical location is a key factor affecting the efficiency of home solar panels. With more sunlight, each of your solar panels will generate more electricity. Therefore, we must take into account the sunshine duration when calculating the system.

Put it all together

Taking these variables into account, we can roughly estimate the number of household solar panels you need. In this example, we will use the average annual energy consumption, solar panel wattage and sunshine hours we mentioned earlier.