How many solar panel do i need calculator
Calculating the number ofyou require is quite straightforward if you have the necessary data. It all starts with the load that solar must supply.
Calculate the number ofs required for your property by determining the previous year’s energy cost and multiplying it by the irradiance value in kWh/m2/year (Peak-sun-hours) for your area. Divide theoretical solar kWh by the loss factor of 1.44 and multiply by the wattage rating of the particular solar panel.
How to determine the required number of solar panels
Our solar panel cost and savings calculator is the quickest, simplest, and most accurate way to determine the number of solar panels your home need – and it requires no arithmetic. Additionally, we’ll provide you with an estimate for the average cost of solar installation for your unique property and the savings you’ll realize on your electric bills.
However, if you want to put pen to paper and perform the calculations manually, follow these four simple steps to determine the number of solar panels you require.
1- Calculate your energy consumption
Examine your most recent electric bill to determine your monthly energy consumption. The entire amount of electricity consumed will typically be listed at the bottom of the bill in kilowatt-hours (kWh).
Your annual energy consumption will provide the most accurate estimate of the number of solar panels you require, as energy consumption varies according to season (consider how much electricity you use for air conditioning in the summer!).
Because monthly energy consumption varies significantly, it may be beneficial to dig up your previous year’s power bills, add the total electric usage, and divide by 12.
2- Determine the amount of electricity generated by solar panels in your region.
Once you’ve determined how much electricity your home consumes in a month, you’ll need to determine how much sunlight your neighborhood receives. This is typically expressed in terms of ‘peak sun hours,’ which refers to the intensity of sunshine in your area.
The monthly peak sun hours et value indicates how many kilowatt-hours (kWh) of electricity one kilowatt (kW) of solar panels will generate in a single day in your area. Therefore, if your state receives 150 peak sunshine hours per month, 1 kW of solar will provide 150 kWh of power each month.
3- Calculate the size of the solar system that you require
Given the amount of power generated by 1 kW of solar in your area, you can figure out the size of the solar system required to meet your electricity needs.
Divide your monthly electricity consumption by the monthly peak sun hours in your area to determine the kW capacity of the system you require.
Determine the number of solar panels you require.
As a result, you now know the size of the solar system required to meet your energy needs. What happens now? To get the number of solar panels required, multiply the solar system’s size by 1,000 to convert it from kilowatts to watts.
Then, divide the system’s power by the wattage of the solar panels you wish to install.
The average solar installation will require between 335 and 405 square feet of roof space. Multiply the number of panels by 17.55 square feet to get the required roof space. If you have a small roof, you may require high-efficiency or high-power panels. Get quotations from qualified local solar firms to identify the optimal site for your home solar power installation. The quantity of panels you require depends on elements including roof direction, roof shading, solar inverter, and whether or not you use a solar battery.