Global Atlas of Closed-Loop Pumped Hydro Energy Storage
| Autor: | Andrew Blakers, Cheng Cheng, Bin Lu, Ryan Stocks, Matthew Stocks |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Pumped-storage hydroelectricity
business.industry Environmental engineering Site selection 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Electrical grid Energy storage 0104 chemical sciences Renewable energy General Energy Photovoltaics Environmental science Electricity 0210 nano-technology business Digital elevation model |
| Zdroj: | Joule. 5:270-284 |
| ISSN: | 2542-4351 |
| Popis: | Summary The difficulty of finding suitable sites for dams on rivers, including the associated environmental challenges, has caused many analysts to assume that pumped hydro energy storage has limited further opportunities to support variable renewable generation. Closed-loop, off-river pumped hydro energy storage overcomes many of the barriers. Small (square km) upper reservoirs are typically located in hilly country away from rivers, and water is circulated indefinitely between an upper and lower reservoir. GIS analysis of high resolution global digital elevation models was used to determine economically feasible closed-loop scheme locations outside protected and urban areas. This search identified 616,000 potential storage sites with an enormous combined storage potential of 23,000 TWh. This is two orders of magnitude more than required to support large fractions of renewable electricity, allowing flexible site selection. Importantly, the resource is widely distributed to effectively support large-scale solar and wind deployment for electrical grid decarbonization. |
| Databáze: | OpenAIRE |
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