First of its kind ‘high-density’ hydro system begins generating electricity in Devon

The Guardian - World NewsCenter-LeftEN 2 min read 100% complete by Jillian Ambrose Energy correspondentJanuary 27, 2026 at 07:00 AM

Read Original Article

AI Summary

medium article 2 min

A first-of-its-kind "high-density" hydropower system in Devon, UK, has begun generating electricity. Developed by RheEnergise, the underground system utilizes a mineral-rich fluid, 2.5 times denser than water, to generate power from gentle slopes, unlike traditional hydropower which requires steep terrain. This technology allows for wider application of hydropower as long-duration energy storage, potentially quicker and cheaper to build than conventional dams. The government-backed project consistently generates 500 kilowatts, enough to power 400 homes, and RheEnergise is in talks to build commercial-scale projects in multiple countries within three years. The UK government has invested in long-range storage options like this to manage renewable energy variability and reduce reliance on fossil fuels.

Key Entities & Roles

Key Player Opposition Context

Italy 40% Poland 40% North America 40% Spain 40% Cornwood 50% UK government 60% Plymouth ×260% Stephen Crosher 70% Devon ×270% UK ×380% RheEnergise ×690%

Keywords

hydropower 100% energy storage 90% renewable energy 80% high-density hydro 80% long duration energy storage 70% rheenergise 60% electricity generation 60% net zero 50% mineral-rich fluid 40%