The plunging cost of storage, along with that of wind and solar power, appears to have crossed a new threshold after a tender conducted by a major US energy utility suggests “firm and dispatchable” renewables are now cheaper than existing coal plants. The stunning revelation came from Xcel Energy in Colorado, and quietly released over the Christmas/New Year break, although some outlets like Vox and Carbon Tracker were quick to pick up on the significance. Last year, XCel Energy put out a “request for proposals” (RFP) for how it could replace two coal-fired generators that it is considering shutting down – part of a plan that will take its share of renewables to more than 50 per cent. The results were described by Vox’s David Roberts as “mind-blowing”. And he’s not wrong.
Renew Economy 29th Jan 2018 read more »