And when they do show commercial viability it will be very limited.
There simply are not enough watts per square foot at the earths surface to make it a replacement of current commercial sources of power.
“There simply are not enough watts per square foot at the earths surface to make it a replacement of current commercial sources of power.”
But, there is an unending supply of government grants and federal subsidies to make this “work”
That is not close to being true. Far more power hits the earth via solar energy than we use ourselves in all the other forms. The State of Arizona receives over 100 times the energy in solar power per year than the entire US uses in a year.
The problem is capturing, storing and distributing it. But all the energy we need, a more than a thousand times over, strikes our territory for all our uses.
Arizona = 295,254,200,000 sq m
6 kWH/d/sq m
1,771,525,200 MWH/d
365 d/yr
646,606,698 GWH/yr
3,412 BTU/kWH
2,206,222,054 Billion BTU/yr
2,206 Quads/yr (Quadrillion BTU)