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This calculator estimates the solar energy that can be collected by a solar capture device (solar panel) at a given address, panel direction and roof slope.

The program combines an image of the local landscape with irradiance data from the nearest climate station. This is typically more than 10 years of "sunlight hours" data.

For more information, click here.

If you have already registered for a NIWA account and subscribed to use the SolarView service, please sign in using the form on the left.

Otherwise, visit account management to subscribe for the SolarView service.