Today’s Solutions: January 13, 2026

A new engine that generates electricity from waste hot water could reduce energy consumption and carbon emissions for thousands of different businesses, from cargo shipping to data centres. So says Exergyn, a firm based in Dublin, Ireland, which plans to run the first industrial trials of its technology next year. Globally, Exergyn estimates that the heat lost in waste hot water from industrial processes amounts to around twice the energy in Saudi Arabia’s annual oil…

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