> I think your maths is off - there are 1m square metres in 1 sq kilometre, but 2000 kW in a GW, meaning approx 0.002 kW per square meter. That's not right. Th

> I think your maths is off - there are 1m square metres in 1 sq kilometre, but 2000 kW in a GW, meaning approx 0.002 kW per square meter. That's not right. There's 2000 kW in a MW, not GW. 2GW is 2e9W, so over 1e6,^2 that's 2e3W/m^2 or 2kW/m^2.