Irradiation Data and PV Calculators

National Renewable Energy Laboratory
information on solar irradiation

You can find some excellent information on how much sun is available in different parts of the country by visiting this website.

[Get Solar Radiation Data]

PV Calculator
Online Estimation Tool

This website will perform many of the calculations taught on this website, for free in a simple to use form that you complete with your information.

It's a little more convincing to do the calculations yourself, but many of the methods of estimating your home's potential for solar electricity are used by this calculator.

[Enter the PV Watts Calculator Page]

The Line/Load Blog helps explain how to use this data for the purpose of developing your own estimates for solar productivity in your home.

Other Works Referenced