Building solar farms in the desert requires expensive grid upgrades. Putting solar panels on your roof generates the electricity near where you consume it, whi

Building solar farms in the desert requires expensive grid upgrades. Putting solar panels on your roof generates the electricity near where you consume it, which is a big advantage. Rooftop solar can have payback periods as short as 5-10 years depending on the location. It makes a lot of sense for individuals to embrace that if they want, while utilities can also do their thing in the desert.