Image source: Celsius Energy

After expanding into France and the United States, Celsius Energy is opening a new demonstration site in Stonehouse, UK. This marks a strategic milestone in its mission to establish geothermal energy as a key solution for the energy transition.

Located in the heart of Stonehouse, the 4,500 m² SLB Group technology center has transitioned from a traditional gas and chiller system to Celsius Energy’s advanced solution.

Completed in just 10 months on an occupied site, the system includes 18 closed-loop, inclined geothermal boreholes paired with a ground source heat pump managed by a digital platform that optimizes energy performance in real time.

This new demonstration site offers visitors an opportunity to experience a live installation and witness Celsius Energy’s innovations in action.

The immediate benefits of the solution include:

• 100% of cooling needs and 84% of heating needs met by geothermal energy,
• 65% reduction in CO₂ emissions,
• 67% energy savings,
• £40,000 in annual energy bill savings.

With this new installation, the SLB group now has three buildings converted to geothermal energy, demonstrating its confidence in the Celsius Energy solution and the proven performance of our technology. This project represents a significant step toward the Group's ambitious goal of decarbonizing its entire real estate portfolio by 2050.

With a high reliance on gas for electricity production (40%) and domestic heating (85%), the UK is actively seeking alternatives to enhance its energy security. In this context, Celsius Energy’s geothermal technology addresses these challenges with a simple, renewable, and scalable solution, even in densely urban areas.

This first project in the UK highlights Celsius Energy's ambition to become a key player in the UK geothermal market, as well as its commitment to helping companies move toward a more resilient and competitive energy future.

Case Study: An SLB Technology Center in Stonehouse adopts the Celsius Energy solution

Background
The SLB Technology Center, which accomodates to 300 employees, aimed to replace the aging HVAC system (heating, ventilation, and air conditioning) in a 4,500 m² mixed-use building, initially heated and cooled by gas boilers and chillers.

To highlight the many benefits of geoenergy, optimized by our innovations, this technology center has become the official demonstrator of the Celsius Energy solution in the United-Kingdom.

Need
The SLB Technology Center aimed to replace the aging HVAC system (heating, ventilation, and air conditioning) in a 4,500 m² mixed-use building, initially heated and cooled by gas boilers and chillers.

The new solution needed to contribute to the Group’s ambition to reduce greenhouse gas emissions (carbon neutrality by 2050) and ensure energy savings in a context of rising energy costs. At the same time, it was essential to minimize the installation’s impact on site activities to ensure a smooth transition.

Solution
Celsius Energy proposed an innovative geoenergy solution to replace the gas boiler and chillers with a local, renewable energy source.

At the core of the system are 18 inclined, closed-loop wells connected to a ground source heat pump, controlled by an state-to-the-art digital platform. This platform optimizes energy performance in real-time, ensuring efficient and sustainable operation.

The wells, drilled in a “star” design from a single surface point, extend up to 200 meters deep. The result: a footprint reduced by 100 times and a minimized environmental impact.

Result
This installation provides 100% of the cooling needs and covers 84% of the heating needs, reducing CO₂ emissions by 87 tonnes per year from the first year. The goal? To achieve Net Zero by focusing on decarbonizing the electricity used.

With this solution, gas consumption is reduced by a factor of 7.6, and energy costs are lowered by £40,000 annually. The entire project was implemented swiftly in just 10 months with minimal disruption to site activities, made possible by the ingenious “star” design of the geothermal exchanger.

As of November 2024, this installation becomes the first demonstrator of Celsius Energy’s solution in the United Kingdom.

KeyFacts Energy: Geothermal news