Domestic micro-datacentres strapped to water tanks cut UK heating bills by £10-15/month
nordicinst · x · 2026-09-19
The Guardian reports on a growing home-energy trend: compact compute servers strapped to domestic hot water cylinders, using waste heat from running workloads to warm household water instead of dumping it into the air like large datacentres.
- Giles Gibson, a four-bedroom homeowner in south-east London, says his hot water bills fell £10-15/month after installing the system last year.
- Users get cheaper hot water while server heat is put to use; more companies are entering the space as UK energy bills rise again.
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