As some of the answers have mentioned, solar is intermittent, expensive etc., well these are certainly some critical aspects. But along with these, there are some very important considerations from the aspect of the electrical grid as well. 1. read more
US is also leading in grid storage and smart home tech. I think your question should be - why isn't the WORLD using more solar. And that's simple: because we're locked in a corporate global mass economy model that doesn't care to much about what's good for the world as a whole. But not to worry, that's changing. Slow, but it's there. read more