Wind on sea can generate 30GW/km2. Europe has tons of shallow seas (<50m) where it could be built - North Sea is fairly shallow and windy, Adriatic, Baltic, Cel

Wind on sea can generate 30GW/km2. Europe has tons of shallow seas (<50m) where it could be built - North Sea is fairly shallow and windy, Adriatic, Baltic, Celtic, Black sea, Channel, Gulf of Lion. Build peak power of 5x times the needed electricity, wind always blows somewhere. ENTSO-E needed ~500GW peak power in 2021, so 100km2 of sea wind turbines would cover it comfortably