Engineering capability across the project lifecycle
We plan, optimise, replace and upgrade energy infrastructure with system interfaces, operational requirements and delivery constraints in view.
Energy engineering consultants.
Planning
Decide what to do, why it matters and in what sequence.
Optimisation
Improve the performance of the systems you already have.
Replacement
Replace essential assets without limiting future options.
Upgrade
Add new capability without compromising existing systems.
We help clients make confident energy infrastructure decisions by combining detailed analysis, proven engineering experience and an understanding of live operational environments.

Engineering capability across the project lifecycle
We plan, optimise, replace and upgrade energy infrastructure with system interfaces, operational requirements and delivery constraints in view.
Engineering grounded in real operating environments
Our work brings together estate priorities, technical requirements and the practical realities of delivering change across live sites.
Worth School & Abbey
Campus-wide low-carbon heat network
ReEnergise supported the project from feasibility through design, delivery and ongoing maintenance, replacing 35 oil boilers across 24 buildings.
1.7 km network • 1.6 MW biomass • Approximately 940 tCO₂e saved annually
Diocese of Guildford Schools
Heat decarbonisation across 41 schools
We developed Heat Decarbonisation Plans, created a prioritised investment programme and managed heat-pump installations across 11 school sites.
£253k LCSF funding • 15 installations • Estimated 467 tonnes of CO₂ saved annually
St George’s College, Weybridge
Ground-source heating and passive cooling
ReEnergise developed the project from concept and business-case modelling through design, tendering, site management and subsequent optimisation.
Complex live campus • Future-ready infrastructure • End-to-end engineering support