Whole house solar power system calculator

How does a solar calculator work?

But a solar calculator can make short work of the task and give out estimates and recommendations quickly. To calculate your energy requirements, check how many watts an electrical appliance consumes. Multiply the wattage by the number of hours it’s used per day. This gives you the number of watt hours it needs daily.

How do I calculate my solar system size?

To estimate your solar system size, you will need three pieces of information to calculate the solar kilowatts. Now, let's look at each item in more detail. It would be best if you had a year's worth of monthly power bills. On each power bill, locate the kilo-watt hours or kWh for each month. That is how much energy you consumed.

How can I calculate my daily solar energy needs?

To calculate your daily solar energy needs, multiply your daily energy usage by the percentage of your power bill you want to cover with solar. For example, if you want to cover half of your power bill, you’d multiply your daily energy usage by 50%. This gives you an estimate of how much energy your solar system needs to produce on an average day.

How do you calculate solar energy capacity?

To get the entire panel array’s total output, simply add up the daily output of all the solar panels in the system. Example: Say your solar panel array has six 250-watt solar panels and gets an average of 5 hours of sun daily. It can produce up to 7,500 watt hours of energy. How do I calculate solar energy capacity?

How do I calculate solar hours per day?

Use the solar hours per day in the calculator above. If you know the annual kWh consumed at the property, then divide it by the kWh per 1kW to determine the solar array size needed for the project. The solar hours per day table uses PV Watts calculations for each location using these input standards: Actual results will vary for each project.

How do I get a solar energy estimate?

First, you will need to know the annual electricity consumption for the property. You can find this information on the utility power bills for 12 months. Add the monthly kilo-watt hours (kWh) for an annual total. If you don't have power bills, there are other ways to create an estimate. Order the solar design service and we can help.