How Small Tribe in Nevada Shut Down Coal and- Built a Solar Farm

http://inhabitat.com/how-a-small-tribe-in-nevada-shut-down-coal-and-built-a-solar-farm/

Kentucky Coal Mining Museum Switches to Solar Power

http://www.foxnews.com/us/2017/04/06/kentucky-coal-mining-museum-switches-to-solar-power.html