Wavelength of solar radiation components

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mindamonteagudo
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05 Sep 2023 18:54 #12483 by mindamonteagudo

Wavelength of solar radiation components was created by mindamonteagudo

Hi, is there a specific wavelength range SAM expects for each solar irradiance component? I know you can use GHI, DNI and/or DHI from NSRDB, but if you wanted to supply other solar data to SAM, would they need to be fields of direct and diffuse shortwave radiation, or just the visible component of shortwave? I don't see a wavelength given in the SAM Photovoltaic Model Technical Manual, just references to "solar irradiance". Thank you!

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pgilman

06 Sep 2023 23:17 #12488 by pgilman

Replied by pgilman on topic Wavelength of solar radiation components

Hi Minda,

SAM's photovoltaic models use any two of DNI, DHI, and GHI data as input (or, as an option POA irradiance data). Spectral effects are accounted for in the module model, which applies an empirical adjustment like the one described in the PV technical manual's Equation 10.24 for the CEC module model.

There is not an option for providing solar irradiance data for different wavelengths.

Best regards,
Paul.

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