One of the UK’s largest low-carbon heating systems will soon begin warming homes and offices in London’s Square Mile by capturing heat from more than 650ft below the streets of the City. The £4m scheme, to be housed in the historic Port of London Authority building on Charterhouse Street next to Smithfield Market, will provide the same amount of heat as used by 2,300 average UK homes with 50% less carbon emissions. Built by the energy company E.ON UK, it will use a heat pump and three 650ft boreholes to tap the natural warmth of the Earth, and will also capture the heat created by a nearby gas plant that has helped to power London’s financial district since 1993. The new project will extend the existing Citigen plant, which uses a heat network connected to a small gas-fired power plant to generate enough electricity and heating for the equivalent of more than 11,000 homes for local offices. Heat networks, and heat pumps, are expected to become a major part of the government’s plan to reduce the UK’s reliance on fossil fuels for heating homes and businesses in order to cut carbon emissions to net zero by the middle of the century.
Guardian 23rd June 2021 read more »