--- title: Energy engineering for complex, operational estates description: Unlock energy infrastructure solutions with our expert engineering services, from strategy and design to project delivery, ensuring practical and sustainable improvements across live operational environments. --- [Skip to content](https://www.reenergisegroup.com#main-content) [![reenergiselogo-lightgreendarkgreen-1](https://www.reenergisegroup.com/hs-fs/hubfs/reenergiselogo-lightgreendarkgreen-1.png?width=1326&height=209&name=reenergiselogo-lightgreendarkgreen-1.png)](https://www.reenergisegroup.com?hsLang=en) - Services Show submenu for Services - [Engineering Services](https://www.reenergisegroup.com) - [Energy Procurement](https://www.reenergisegroup.com/energy-broking-and-procurement) - [Compliance & Reporting](https://www.reenergisegroup.com/esos) - [Our Team](https://www.reenergisegroup.com/about-reenergise-team) - [Case Studies](https://www.reenergisegroup.com/work-examples-expertise-stories) Open main navigation Close main navigation - Services Show submenu for Services - [Engineering Services](https://www.reenergisegroup.com) - [Energy Procurement](https://www.reenergisegroup.com/energy-broking-and-procurement) - [Compliance & Reporting](https://www.reenergisegroup.com/esos) - [Our Team](https://www.reenergisegroup.com/about-reenergise-team) - [Case Studies](https://www.reenergisegroup.com/work-examples-expertise-stories) - [Contact](https://www.reenergisegroup.com/contact-reenergise) [Contact](https://www.reenergisegroup.com/contact-reenergise?hsLang=en) # **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. ## Energy engineering capability across the project lifecycle. ### We plan, optimise, replace and upgrade energy infrastructure with system interfaces, operational requirements and delivery constraints in view.  ![Geotech big rig](https://www.reenergisegroup.com/hs-fs/hubfs/Photo%20library/GSHP/Geotech%20big%20rig.jpg?width=2000&height=1500&name=Geotech%20big%20rig.jpg) ![CHP2](https://www.reenergisegroup.com/hs-fs/hubfs/Photo%20library/CHP2.png?width=947&height=707&name=CHP2.png) ![1. Groundworks for a GSHP](https://www.reenergisegroup.com/hs-fs/hubfs/Photo%20library/1.%20Groundworks%20for%20a%20GSHP.jpg?width=958&height=705&name=1.%20Groundworks%20for%20a%20GSHP.jpg) ![Ditcham Park Solar Panels taken from scoffolding 01](https://www.reenergisegroup.com/hs-fs/hubfs/Photo%20library/Electrical/Ditcham%20Park%20Solar%20Panels%20taken%20from%20scoffolding%2001.jpg?width=2000&height=1500&name=Ditcham%20Park%20Solar%20Panels%20taken%20from%20scoffolding%2001.jpg) ![Alex and buffer tanks](https://www.reenergisegroup.com/hs-fs/hubfs/Photo%20library/Biomass/Alex%20and%20buffer%20tanks.jpg?width=1280&height=960&name=Alex%20and%20buffer%20tanks.jpg) ![processed-8DE460CA-3214-48C3-8139-7FD2418DB645](https://www.reenergisegroup.com/hs-fs/hubfs/Photo%20library/processed-8DE460CA-3214-48C3-8139-7FD2418DB645.jpeg?width=2000&name=processed-8DE460CA-3214-48C3-8139-7FD2418DB645.jpeg) Explore our engineering services Read examples of our work ![1-Aug-26-2026-09-08-43-3964-AM](https://www.reenergisegroup.com/hubfs/1-Aug-26-2026-09-08-43-3964-AM.png) ### Strategy Decide what to do, why it matters and in what sequence.  ![2-Aug-26-2026-09-08-43-3798-AM](https://www.reenergisegroup.com/hubfs/2-Aug-26-2026-09-08-43-3798-AM.png) ### Optimisation Improve the performance of the systems you already have.  ![4-Aug-26-2026-09-08-43-3886-AM](https://www.reenergisegroup.com/hubfs/4-Aug-26-2026-09-08-43-3886-AM.png) ### Replacement Replace essential assets without limiting future options. ![3-Aug-26-2026-09-08-43-3798-AM](https://www.reenergisegroup.com/hubfs/3-Aug-26-2026-09-08-43-3798-AM.png) ### 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. [Find out more about our team](https://www.reenergisegroup.com/about-reenergise-team?hsLang=en) ![Charterhouse - Daviesites Model Shot](https://www.reenergisegroup.com/hubfs/Charterhouse%20-%20Daviesites%20Model%20Shot.jpg "Charterhouse - Daviesites Model Shot") ## Engineering capability across the project lifecycle We plan, optimise, replace and upgrade energy infrastructure with system interfaces, operational requirements and delivery constraints in view. Explore our engineering services Read examples of our work ## Engineering grounded in real operating environments  Our work brings together estate priorities, technical requirements and the practical realities of delivering change across live sites.  [![](https://www.reenergisegroup.com/hs-fs/hubfs/Worth.jpg?height=200&name=Worth.jpg)](https://www.reenergisegroup.com/work-examples-expertise-stories/case-studies/worth-school-and-abbey?hsLang=en) ### [Worth School & Abbey: 1.7km biomass district heat network](https://www.reenergisegroup.com/work-examples-expertise-stories/case-studies/worth-school-and-abbey?hsLang=en) [![](https://www.reenergisegroup.com/hs-fs/hubfs/DoG%20Featured%20image%20sizing.jpg?height=200&name=DoG%20Featured%20image%20sizing.jpg)](https://www.reenergisegroup.com/work-examples-expertise-stories/case-studies/diocese-of-guildford?hsLang=en) ### [Diocese of Guildford: 15 heat pumps across 11 schools](https://www.reenergisegroup.com/work-examples-expertise-stories/case-studies/diocese-of-guildford?hsLang=en) [![](https://www.reenergisegroup.com/hs-fs/hubfs/Corsham%20Featured%20image%20sizing.jpg?height=200&name=Corsham%20Featured%20image%20sizing.jpg)](https://www.reenergisegroup.com/work-examples-expertise-stories/case-studies/the-corsham-school?hsLang=en) ### [The Corsham School: biomass heating and energy upgrades](https://www.reenergisegroup.com/work-examples-expertise-stories/case-studies/the-corsham-school?hsLang=en) [See more examples of our work](https://www.reenergisegroup.com/work-examples-expertise-stories?hsLang=en) ![Energy Centre Worth](https://www.reenergisegroup.com/hs-fs/hubfs/Photo%20library/Biomass/Energy%20Centre%20Worth.jpg?width=2000&name=Energy%20Centre%20Worth.jpg) #### 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** ![Viessmann Schools Case Study - Vitocal 200-A Pro ASHP-05](https://www.reenergisegroup.com/hs-fs/hubfs/Photo%20library/Diocese%20of%20Guildford/Viessmann%20Schools%20Case%20Study%20-%20Vitocal%20200-A%20Pro%20ASHP-05.jpg?width=2000&name=Viessmann%20Schools%20Case%20Study%20-%20Vitocal%20200-A%20Pro%20ASHP-05.jpg) #### 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** ![Drilling rig for boreholes for a GSHP system](https://www.reenergisegroup.com/hs-fs/hubfs/Photo%20library/GSHP/Drilling%20rig%20for%20boreholes%20for%20a%20GSHP%20system.jpg?width=2000&name=Drilling%20rig%20for%20boreholes%20for%20a%20GSHP%20system.jpg) #### 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** Planning a project? Talk to our engineering team about your estate, priorities and delivery requirements. [Contact our team](https://www.reenergisegroup.com/contact-reenergise?hsLang=en) [![ReEnergise](https://www.reenergisegroup.com/hs-fs/hubfs/reenergiselogo-lightgreendarkgreen-1.png?width=350&height=55&name=reenergiselogo-lightgreendarkgreen-1.png "ReEnergise")](https://www.reenergisegroup.com?hsLang=en)     Confident energy infrastructure decisions. **Services** [Engineering Services](https://www.reenergisegroup.com) [Compliance & Reporting](https://www.reenergisegroup.com/esos?hsLang=en) [Energy Procurement](https://www.reenergisegroup.com/energy-broking-and-procurement?hsLang=en) **ReEnergise** [Case studies](https://www.reenergisegroup.com/work-examples-expertise-stories?hsLang=en) [Our team](https://www.reenergisegroup.com/about-reenergise-team?hsLang=en) [Contact us](https://www.reenergisegroup.com/contact-reenergise?hsLang=en) Copyright © 2026 ReEnergise Projects Limited.