Calculate Your Solar Panel Needs

Follow the off grid project and learn how to calculate your own solar energy requirements.

Calculate your solar panel needs.

You can calculate how many solar panels you need by multiplying your household s hourly energy requirement by the peak sunlight hours for your area and dividing that by a panel s wattage. Please let me know the formula with different options. In other words you will calculate the solar energy system s inputs. Calculate the size of your solar system.

Then divide the kw output by your panel s efficiency to get the estimated number of solar panels you ll need for your system. The first way to achieve your energy goal is to conserve electric power by reducing appliance use and using efficient appliances. Calculate solar power needs. Always choose the worst case scenario for.

Other factors such as peak load shade location available panel space and seasonal use need to be taken into account. We have led lights ac dc fans available i n markets but people usually don t want to change over to dc appliance. Based on a ten hour day of light the calculation is simple. To figure out how to size your solar system take your daily kwh energy requirement and divide it by your peak sun hours to get the kw output.

The average system size in the u s. One solar panel produces about 1 24 kwh per day. The reality is that most summer days give about 15 hours of sunlight and winter you get about 4 5 hours of sunlight. 17 42 panels to generate 11 000 kwh year.

In the example above you would need 24 solar panels to account for 80 of your average consumption 29 6 kwh daily usage divided by 1 24 kwh per panel. Now calculate what size solar panel you will need. Use a low wattage 150w and high wattage 370w example to establish a range ex. Determine how many solar panels you ll need.

The following article will guide you step by step through calculating how many solar panels you need how large a battery bank what sized power inverter and what size solar charge controller. Need to know as to how to calculate the number of 330 w or 150 w solar panels. 1 000 watt hours 10 hours sunlight 100 watt solar panel. Is 5kw 5000 watts so you can use that as a benchmark if you re unclear on what your power needs will be.

For the most accurate and personalized off grid system size calculation call our solar experts at 1 800 472 1142.