If God had wanted us to have nearly unlimited clean energy, He would have placed a fusion reactor into the sky.
(europe.pub)
It basically doesn't work out.
Theoretically you could have 2500 square meters of solar arrays above the weather beaming the power down to a dish with only a 500 square meter footprint.
But you'd still have to deal with weather with some kind of a storage solution. And 2500 square meters of area in space seems more expensive to claim than just 500 square meters of area on land, in pretty much any scenario.