“Around three-quarters of US coal production is now more expensive than solar and wind energy in providing electricity to American households, according to a new study.

“Even without major policy shift we will continue to see coal retire pretty rapidly,” said Mike O’Boyle, the co-author of the report for Energy Innovation, a renewables analysis firm. “Our analysis shows that…”

Source:
https://www.theguardian.com/environment/2019/mar/25/coal-more-expensive-wind-solar-us-energy-study