Earlier quoted context omitted.
Also the margins on renewables are quite thin due to competition and recent innovation in that space.
...Leading to thin margins on non-renewables (hence the layoffs?)
GE Power's bread and butter is gas turbines, and the margins there are strong. As long as natural gas stays cheap, there is usually demand for turbines. Renewables have obvious issues, which is mostly around demand and load. Like solar can't supply power in the evening. GE's problem stems from foreign competition where growth is. I'm oversimplifying here, but an example would be China pumping infrastructure into Africa. GE can't win in those markets because China can undercut and they don't have the same regulations that the US has.