Eden Project - OnSite
January 2022
The Eden Project is a world-famous visitor attraction in Cornwall. It is located in a ‘hot rocks’ area; therefore, they have been able to tap into deep geothermal heat wells over 5km below the ground’s surface. The fluid pumped from the ground is around 100°C. This is used to create electricity, heating and hot water for buildings. Find out more about the Eden Geothermal Project here.
Infinitas Design was pleased to form part of OnSite’s bid team when they tendered successfully to design and build the new heat network. The network linked the deep geothermal boreholes with the existing gas-fired energy centre to provide low carbon heating and hot water across the site, including the iconic biomes. Following the contract awarded in Dec 2021, Infinitas were on site with the OnSite team in early Jan to conduct detailed surveys of the primary heat route.
Building on the customer specification, Infinitas was able to complete the following works for the project:
- Detailed and accurate pipe route drawings in 2D CAD, including chainage
- 3D modelling of above ground pipework, linking the buried heat network to the energy centre
- 3D modelling of awkward junctions, including branch tees
- Digital model of heat network in Lean Heat software to check levels and pipe lengths
- As-built drawings and modifications as the installation progressed


The work carried out by Eden Project to support diverse growing conditions and provide environmental education to many is of critical importance given the need to conserve and protect our environment. They have set a standard in using low carbon solutions for heat and hot water in an unusual and iconic location. It was an honour to support such an important cause and help the organisation make a difference.
Are you interested in seeing how we could support your heat network project? Look at our services page or contact us to book an initial 30-minute consultation.