What is the London Heat Map?

The heat map is an online tool you can use to find opportunities for decentralised energy (DE) projects in London. 

It has local information to help you identify and develop DE opportunities. This includes data on:

  • major energy consumers
  • fuel consumption and CO2 emissions
  • energy supply plants
  • community heating networks
  • heat density

Local councils can use the map to help develop energy master plans. These can in turn help shape DE policies in local development frameworks and climate change strategies.

Developers can use the map to help them meet the decentralised energy policies in the London Plan.  

We’ll be updating the map regularly alongside the Energy for London programme.


The Mayor wants to ensure that 25% of London's energy supply comes from decentralised energy (DE) by 2025. 

To achieve this aim, in 2008 we created a decentralised energy programme to support and quicken uptake of district heating. 

Our initial focus was on finding opportunities for district heating networks through heat mapping and energy masterplanning. We also wanted to build capacity within local councils to run DE projects. Finally, we wanted to ensure planning policies encouraged DE in new developments. 

From 2011, we continued our support through the Decentralised Energy for London programme, with support from the European Investment Bank’s ELENA facility.
By the end of July 2015, this programme had helped bringt 13 DE projects to market and attracted over £100m worth of investment.  

This was succeeded in April 2016 by Energy for London (EfL). This programme  is part funded by the European Regional Development Fund. It will help London to bring in large scale DE projects and make huge carbon dioxide savings.

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