Clicking the Parameters tab will display a screen depicting monthly albedo & soiling factors, plant design temperature characteristics and horizon scene (if applicable).

All fields are editable to accommodate user defined prediction specifics such as a monthly soiling profile. An annual value is also permissible and can be entered by selecting Annual Override. The spectral profile is an override field; if no spectral input data is included with the weather file or if an alternate spectral profile is desired, the user may override with monthly loss factors.

To override, click the Spectral Override button and enter the desired monthly or annual spectral adjustment(s).

Key Terms

If no spectral input data is included with the weather file or if an alternate spectral profile is desired, enter monthly values to be used in the prediction.

Locks monthly inputs and sets all monthly values to the value entered.