The project's Chief Transformation Officer, Si Bellamy, sees the system as critical to their 'climate-positive' future goals. “We are working with and for nature to develop new ways to grow and new ways to encourage people to think differently about plants, the planet and themselves," said Bellamy.

The successful use of geothermal energy is a key part of the Eden Project’s broader sustainability and climate action goals. The attraction has set a target to become climate-positive by 2030, and the transition to geothermal heating is a significant step in that direction. In addition to reducing operational carbon emissions, the Eden Project has also incorporated sustainable design and construction practices into its new plant nursery and education facility.

The plant nursery, which is now heated using geothermal energy, serves as a living example of the Eden Project’s focus on regenerative sustainability and circular systems. The facility is constructed using light, recyclable materials and is designed to minimize embodied carbon emissions. It also incorporates on-site rainwater harvesting and utilizes heat from the geothermal well.

In total, the plant nursery covers 6,500 square meters and represents the single largest physical development at the Eden Project since 2006. The facility now includes space to propagate and care for over one million plants each year, supporting the attraction’s biomes, outdoor gardens, and estate. The nursery also plays a key role in the Eden Project’s conservation and education efforts.

The use of geothermal energy has not only allowed the Eden Project to expand its heating needs, but also to explore new opportunities for on-site food production. The geothermally-heated plant nursery now enables the attraction to grow a wider variety of produce, including fresh herbs, fruits, and vegetables that would not typically thrive in the region’s climate. 

To support these efforts, the Eden Project has partnered with local suppliers and incorporated geothermally-grown produce into its on-site restaurants. Chefs at the attraction have already begun incorporating geothermal fruits, herbs, and vegetables into their menus, creating dishes such as salads, curries, and smoothies.

In addition to the environmental and operational benefits, the Eden Project’s use of geothermal energy also has the potential to serve as a model for other organizations and facilities. The success of the project could demonstrate the feasibility and long-term cost savings associated with geothermal heating, particularly for large, energy-intensive sites.

Geothermal energy is still a relatively untapped resource in the UK, but the government has expressed interest in expanding its use as part of the country’s overall climate strategy. In 2020, the UK government released a plan to increase the use of low carbon heating in homes and buildings, with geothermal identified as a key potential source.

If the Eden Project’s geothermal heating system continues to prove successful, it could pave the way for similar projects to be developed across the globe. This, in turn, could create new opportunities for the geothermal energy sector and help the UK achieve its long-term climate goals.