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January 2019 to December 2023

PI: Bob Critoph

LoT-NET (Low Temperature Heat Recovery and Distribution Network Technologies)

Funded by: EPSRC

Partners and stakeholders:

CIBSE (Chartered Institution of Building Services Engineering), CREDS, BEIS, ESC (Energy Systems catapult) and HPA (Heat Pump Association)



The provision of heating and cooling produces more than one third of the UK’s CO2 emissions and represents about 50% of overall energy demand. This multidisciplinary programme, LoT-NET (Low Temperature Heat Recovery and Distribution Network Technologies), considers how waste heat streams provided through low temperature heat networks can combine with optimal use of heat pump and storage technologies to meet the heating and cooling needs of UK buildings maximising waste and ambient heat utilisation in low or zero-carbon solutions.


Our ambition is to prove low cost, low loss, flexible heat distribution networks that integrate intermittent renewable supplies, waste heat outputs, low-carbon heat emitters, multi-scale thermal storage and smart thermal energy transformers to provide affordable, secure and sustainable energy to UK consumers and businesses whilst being compatible with future electricity networks.

The integrated approach will lead to minimum Greenhouse Gas (GHG) emission solutions. The investigators’ experiences in the EUED i-STUTE Centre shows that integrated, dynamic multi-vector energy systems need interdisciplinary research that combines advances in technology (e.g. better heat pumps for boosting the temperature of low grade waste heat, novel storage technologies for both intermittent heat and electricity), simulation and demonstration in market situations of varying scale (e.g. from individual dwelling to district), insight into the behaviours associated with heat use, consideration of the market incentives & barriers at play and evidence-driven proposals for innovation in regulatory frameworks and market structures (e.g. trading options, DSO and aggregator business models, consumer protection for heat).

Smart heat networks are less understood than smart power networks, yet significantly more energy in our homes and businesses is used as heat rather than electricity. Our programme will address these issues through a focus on how waste heat can be recovered, used and incorporated in smart, thermal and electrical energy systems.


Organised by SIRACH: ‘Smart Energy Networks of the Future’

4 July 2019, 09:30 to 16:30
Islington Town Hall, Upper Street, Islington, N1 2UD

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