Launch of new London Heatmap

5 November 2019

The new version of the London Heat Map was launched today.

It is a major upgrade of a mapping tool that was developed by CSE in 2009 and is designed to identify low carbon solutions to heating London’s homes and workplaces using district heating networks. 

The Mayor, Sadiq Khan, has set ambitious targets to make London a zero-carbon city through policies laid out in his London Plan and in the London Environment Strategy. Decentralised energy projects and heat networks are key part of this.

Click here to open the London Heatmap.

Josh Thumim, CSE's head of research, oversaw its production. "The London Heat Map is a web application that can help developers, local borough councils, energy companies and others locate areas where demand for heat is at its highest and construct heat network models and assess their feasibility."

The map covers the whole of Greater London, and provides very local information for the identification of decentralised energy opportunities. It includes data such as:

  • Heat demand values for each building
  • Locations of existing energy supply plants
  • Locations of existing district heating networks
  • A spatial heat demand density map layer

Importantly, the new map includes a user-friendly visual tool for heat network design. This is intended to support preliminary techno-economic appraisal of potential district heating networks.

London boroughs can use the new map to help develop their energy master plans.

Property developers can use the map to help them meet the decentralised energy policies in the London Plan and London Environment Strategy.

Energy consultants can use the map to gather initial data to inform feasibility studies.

We hope you find the new London Heat Map valuable in your work. If you have any questions or comments on the map, don’t hesitate to contact the support team at CSE on

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