“Bill Gates became the richest bloke on Earth off the end of the mainframe,” said Neil Eckert, chairman of Aggregated Micro Power Holdings Plc, an energy services company that installs small power plants. “We are seeing the end of the energy mainframe. The world will have to learn new techniques -- how to invest in small-scale distributed energy.”
https://www.bloomberg.com/news/articles/2018-08-06/negative-prices-in-power-market-as-wind-solar-cut-electricity
What does it mean for outlook for suppliers of fossil fuel equipment and services?