A lot of great work has been done by the national renewable energy laboratories and their pvwatts solar production calculator is considered highly accurate.
Solar panel energy savings calculator.
Estimates are based on your roof electricity bill and actual offers in your area.
Improved shade analysis powered by google sunroof data all estimates consider the shading and irradiance levels of every roof plane with the panel placement optimized for the most.
See how long it will take for a solar system to pay for itself.
We refer to this as self consumption.
The solar energy production side of solar savings forecasts is relatively predictable and solar panels production in each climatic area is well known and understood.
This is to help you decide whether a pv system is for you.
Unless you have a solar battery any excess power that you don t use gets exported back to the grid.
The below table converts solar energy production into greenhouse gas offsets using the metric converters 7 44 10 4 metric tons co 2 kilowatt hour of energy produced and the national average for solar panel production ratio 1 42 kilowatt hours watt of power.
This solar calculator is known for its ability to forecast energy production for a specific array of solar panels on a specific roof in a specific location.
Solar savings payback calculator.
The calculator also allows you to compare a high quality photovoltaic pv system with a lower priced solar system and see the difference in payback time.
Using our tool we factor in.
But almost always the best angle to install your panels at is the angle that your roof is built at.
Solar panel angles explained.
Use this solar panel calculator to quickly estimate your solar potential and savings by address.
Solar energy calculator installation size solar electricity systems are given a rating in kilowatts peak kwp.
This is the rate at which they generate electricity at peak performance for examples at noon on a sunny day.
Use the solar energy calculator for an idea as to the benefits you may see from installing a solar pv system.
This tool gives estimates based on information you provide and a number of assumptions to indicate potential benefits.