London's buildings could soon be heated by the tube, sewers and River Thames - here's how

The plan will involve a network of pipes constructed to carry excess heat captured underground to power hot water and central heating systems in the area.

If all goes to plan, the new energy scheme could save Westminster 75,000 tonnes of CO2 each year, the equivalent to planting 1.2m trees.

Taking waste heat from the River Thames and London Underground to heat such iconic places as the Houses of Parliament and the National Portrait Gallery is a really exciting example of what lies ahead on our journey to low-cost, low-carbon heating.

This project will help support hundreds of jobs and make bold new strides towards boosting our energy security.

Read at Time Out London