A heat network supplies heating and hot water to your home from one central source, instead of each home needing its own boiler or electric heater. The same system can serve homes, shops, and offices in your area.
Heat networks can use energy that would otherwise go to waste like heat from factories, the ground, or even rivers. That means greener, lower-cost heating for your home without you having to think about it.
For more information - https://www.gov.uk/government/collections/heat-networks