Electrical and Beam linear loss

[IB31]

Shading simulation is showing the linear loss as 0% but still electrical loss is indicated as 1.9%.Does this electrical losses is refering to mismatch losses or it is composed of loss both due to shading and mismatch.

[IB31]

On 10/6/2023 at 4:58 PM, IB31 said:

Shading simulation is showing the linear loss as 0% but still electrical loss is indicated as 1.9%.Does this electrical losses is refering to mismatch losses or it is composed of loss both due to shading and mismatch.

@Michele Oliosi @Michel Villoz Any thoughts here.

[Michele Oliosi]

Electrical shading losses are the total losses due to shadings. Beam linear loss is the loss of irradiance due to shading the beam irradiance. This latter is accounted in the "electrical" loss.

[IB31]

On 1/4/2024 at 9:19 PM, Michele Oliosi said:

Electrical shading losses are the total losses due to shadings. Beam linear loss is the loss of irradiance due to shading the beam irradiance. This latter is accounted in the "electrical" loss.

Hi Michele. Thank you for the response here. That was my concern that when shading loss are zero (above snip) then electrical loss should be zero.

Does PVsyst accounts for the mismatch losses separately? The data for electrical loss due to shading and mismatch loss is available for hourly resolution ?

[Michele Oliosi]

Yes, we differentiate between mismatch caused by shadings (= electrical shading loss, ShdElec) and other types of mismatch (MisLoss), e.g., due to the quality of the modules.
If you use “mixed orientations”, i.e., strings that have different orientations connected in parallel, there can also be a mismatch due to that (MixLoss).

All these variables are given as hourly values, if you run a simulation with output file https://www.pvsyst.com/help/output_file.htm