I'm curious why so few ppl\companies use solar panels? It's so cheap and it'lll save some resourses of our planet. So why don't we use it?
Solar are a highly growing source of energy. Look at solar installation growth of China. But they have some cons compared to other sources.
Solar panel works only on day. Batteries are needed to store power. Batteries are expensive. There are many cheaper source of perpetual energy than solar.