Solar 'bump' could recover data‑center waste heat

Researchers (Rice University, reported in the journal Solar Energy) propose a 'solar bump' system that runs low‑temperature data‑center wastewater through flat‑plate solar thermal collectors so sunlight and waste heat jointly produce steam to drive turbines. Case studies for Los Angeles and Ashburn, Virginia show the approach could recoup about 8% of a data center’s electricity use and deliver recovered power at costs 16.5% and 5.5% below local market rates, respectively. The method targets tepid waste streams (40–60°C) without energy‑intensive heat pumps and is positioned as a cost‑sensitive option as AI‑driven demand pushes data‑center electricity needs higher.