Millions of Gigawatt-hours of cheap energy storage to support solar and wind
image credit: Global off-river pumped hydro atlas, ANU
- May 12, 2021 9:08 pm GMTMay 12, 2021 8:07 pm GMT
- 374 views
President Biden plans to halve greenhouse emissions by 2030. This requires lots more solar and wind generation, and lots of cheap energy storage. Fortunately, there is a vast, low-cost, off-the-shelf, environmentally benign storage solution, namely pumped hydro.
There is a twist: nearly all good pumped hydro sites are not on rivers - they are off-river sites, located away from any river.
Remarkably, pumped storage is virtually ignored in reports and analyses because people wrongly equate pumped hydro with new dams on rivers.