The clearness index problem

[Solarian]

Dear Sir,

I imported ASCII meteo file without success. It says' The clearness index of the best days is very high with respect to the clear day model.' I don't have time shift or location problems.

PVsyst is giving as a solution 'Please check the units or the solarimeter calibration' but I don't know how to do. So could you please help me regarding above problem?

e-mail: onur.gunes@solarian.com.tr

Best Regards

OG

[ocrighton]

Can someone answer this please.

[André Mermoud]

Meteo data are subject to some "rules".

For example, we have a model for the clear sky conditions, with an accuracy of 2-3% towards high values.

The meteo data cannot be too high with respect to this model. If so, they are doubtful, you should choose another meteo data source.