What most people know but don’t realize they know is that the world is almost entirely solar-powered already. If the sun wasn’t there, we’d be a frozen ice ball at three degrees Kelvin, and the sun powers the entire system of precipitation. The whole ecosystem is solar-powered.
If you’re entering anything where there’s an existing marketplace, against large, entrenched competitors, then your product or service needs to be much better than theirs. It can’t be a little bit better, because then you put yourself in the shoes of the consumer… you’re always going to buy the trusted brand unless there’s a big difference.