The future of a cleaner, cheaper power grid is batteries
 

On the southern edge of the island of Kauaʻi sits an unsightly diesel powerplant. The rust covered smokestacks (a byproduct of being next to the ocean) that emit a mechanical engine drone are a stark contrast to the serene beauty of the rest of the H...

https://www.engadget.com/2017/04/04/...-is-batteries/