How far has solar PV come in the last 30 years? Check this out!
An interesting piece of the solar PV history: a solar panel specification sheet for a 35 Watt panel from the 1980s, priced at $375. That's about $10.70 per watt. How much is it in 2017? Half a dollar?! Imagine the future of energy if this trend continues for the next 35 years!