Dear Boris
you cannot change the climate data for an existing location, but
you have 2 options both available on the page Climate, Grid and System Type, opening the climate data software MeteoSyn by clicking the globe icon:
- Select a location in the vicinity which comes with an irradiation you prefer to calculate with
or
- you create a new location, select Measurement data, and enter global radiation data for all months of a year for this location.
And this new location can be incredibly near to an existing location ;.)
I hope this helps,
TechEditor