DECC estimates that over six GW of low carbon heat can be generated from these areas via water source heat pump technology.
The interactive map can be accessed by clicking here.
Launching the new map at London’s Battersea Power Station development, energy secretary Ed Davey, said: “We need to make the most of the vast amount of clean, renewable heat that lays dormant and unused in our rivers, lakes and seas.
“Doing this will contribute to an energy mix that maximises clean, reliable home-grown resources rather than relying on foreign fossil fuels. It also provides a system that bolsters growth in our local economies, protects the natural environment, and creates resilient communities that are capable of producing sustainable power systems.”