Off-river pumped hydro could provide vast long-duration storage for solar and wind grids

With 800,000 potential sites worldwide and storage capacity exceeding global needs, pumped hydro offers a mature, low-cost alternative to batteries for the extended storage periods required by renewable-dominated grids.

First covered Aug 12, 2026 · 3:04 AM PT · 1 article

Off-river pumped hydro could provide vast long-duration storage for solar and wind grids — Image via pv-magazine.com

Coverage

15h PV Magazine Unlimited long duration, long-lived pumped hydro storage — Solar- and wind-dominated grids need abundant long-duration storage, and off-river pumped hydro offers enormous potential, with 800,000 sites worldwide and…

More coverage from around the web

iopscience.iop.org A review of pumped hydro energy storage - IOPscience

sciencedirect.com Empowering off-river pumped hydro energy storage: An economic and environmental analysis of renewable energy production - storage systems - ScienceDirect

sciencedirect.com Comprehensive benefit evaluations for integrating off-river pumped hydro storage and floating photovoltaic - ScienceDirect

iopscience.iop.org Pumped hydro energy storage to support 100% renewable energy - IOPscience

sciencedirect.com Global Atlas of Closed-Loop Pumped Hydro Energy Storage - ScienceDirect

Appeared in: 2026-08-12 (#11)

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