How accurate are globalwindatlas windspeeds and capacity factors ?

[denis-bz]

Hello pyGRETA people,
just a question, not an issue:
would you have any comments on the accuracy of windspeeds and capacity factors
of https://globalwindatlas.info/area/Germany/Bayern --
which of their values are measured, which extrapolated, which spot-checked against real data ?
(Or, please forward this to ... other experts who might know.)

Thanks,
cheers
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