One of the world’s most powerful supercomputers could one day heat your home – British researchers plan to use abandoned coal mines to provide heat to millions of homes

British researchers are testing a groundbreaking system to reuse waste heat from a supercomputing facility, potentially providing heat to millions of homes.

The system, a first in Britain, aims to store excess heat generated by the University of Edinburgh’s Advanced Computing Facility (ACF) in disused mine workings. The ACF, which houses the national supercomputer, currently emits up to 70 GWh of waste heat annually, a figure expected to rise to 272 GWh with the installation of the government’s upcoming Exascale supercomputer.