A friend was working with British Gas and supporting people in fuel poverty was one of the key areas for exploration as part of the project. We had an idea that could help in that area. At the time there was a lot of coverage of Bitcoin mining and the vast quantities of energy miners were using, and the vast quantities of waste heat they were generating.

We wondered if we could utilise that waste heat to help, so we put a miner in a barrel of mineral oil and connected it up to a radiator to demonstrate the idea.

We re-engineered the system to work with domestic hot water cylinders where demand is fairly constant all year round, and switched from Bitcoin mining to general compute so it could support the decarbonisation of a rapidly growing industry.