Even if you covered every square inch of the planet in solar panels, you still couldn't generate enough power to meet demand.
Last year solar energy passed the 1% of Global energy demand and when I look around me we have more than 99% of area remaining.
Have a look at this article, it explains world-wide demand is met by a surface area comparable to Spain:
I would like to know How many trees will need to be knocked down to build the solar farm.
Read the story, it's in Morocco, a place renowned for it's abundant forests.
Computers are unreliable, but humans are even more unreliable. Any system which depends on human reliability is unreliable. -- Gilb