Wind at say 1GW in 200 square miles (dogged bank figures)
Total sea area therefore is 1 million gw or 1,000tw, or 24ktwh/ day
Need 200k twh for global energy usage, with 30% to spare
Wind loading of average 25%, you need to cover less than 10% of the sea area to produce enough evergy to replace every form of power on the planet - not just electricity.
That's for the entire global energy production (and then some), including transport, heating, industry, not just electricity.
10% of land is set aside for agriculture, which is about 1/3 of 10% of water, but gives an indication. That's an area far larger than the entire US (including Alaska). We use a lot of space.
But you wouldn't produce your entire output from wind. In a desert you get about 2kwh per day from solar per square metre, or 2gwh per square km, or 100,000 SQkm of land for solar.
That's under half the size of Arizona's desert, or 1% of Sahara.
Total sea area therefore is 1 million gw or 1,000tw, or 24ktwh/ day
Need 200k twh for global energy usage, with 30% to spare
Wind loading of average 25%, you need to cover less than 10% of the sea area to produce enough evergy to replace every form of power on the planet - not just electricity.