LEG-DHC

Large-scale climate neutral Energy Geostructures in District Heating & Cooling systems/networks.

December 2024 - November 2025
Image of district heating pipes laid into the ground

About the project

The LEG-DHC project aimed to boost the development of Energy GeoStructure (EGS) technology and to evaluate its integration into district heating and cooling systems. The upscaled geothermal energy technology will be integrated with other renewable energy resources, green buildings and greenhouse gas reduction strategies to create next-generation zero-emission thermal networks.

As the carbon footprint of electricity falls, the electrification of heating and cooling with high-efficiency ground-source heat pumps is key to reducing non-renewable energy use. Despite huge potential, geothermal systems are installed at a lower rate than other renewables.

Codema delivered a report outlining the role and potential of energy geostructures in Dublin’s district heating, including a comparative analysis that places energy geostructures in context with other heat sources compatible with district heating.

Project results

A report on the role and potential of energy geostructures in district heating in Dublin

A comparative techno-economic analysis of heat source options

General recommendations and conclusions for the industry

Project team

Project Lead

Ciarán Murphy

Executive Manager - Research, Development and Innovation

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John O’Shea

Senior Energy Systems Analyst / Heat and Electricity Lead

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James Lawson

Energy Systems Engineer

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