What Eden Geothermal does

Eden Geothermal Limited is a UK-based geothermal project developer that operates a deep engineered geothermal system (EGS) at the Eden Project site in Cornwall, targeting naturally fractured granite (the Great Crosscourse fault) at vertical depths of approximately 4.9 km / measured depth of 5.277 km — the longest geothermal well ever drilled under UK soil. The company's core product is a Deep Geothermal Heat System that uses a coaxial circulation loop with vacuum-insulated tubing and a downhole pump to lift hot water from the reservoir to surface, where a plate heat exchanger transfers thermal energy into a 3.8 km insulated heat main delivering renewable heat to the Eden Project's Biomes, the Growing Point nursery, and surrounding offices and buildings. Operations are supported by a microseismic monitoring network (surface seismometers and ground-motion sensors) for real-time control during drilling and injection testing, and by novel application of Well-SENSE FibreLine Intervention logging for well characterisation.

The company monetises its asset via a managed-services / heat-supply utility model under long-term agreements with anchor customers, and is extending its revenue base through a Geothermal Development Consultancy offering for other UK geothermal developers, energy companies, and local authorities seeking feasibility, drilling, and operational support. Eden Geothermal positions itself as a first-mover deep-geothermal operator in the UK — the country's first operational deep well in 37 years — and is pursuing a multi-site rollout domestically, with public-sector heat (e.g., NHS hospital estates) and data-centre baseload power identified as adjacent target markets.

Commercially, Eden Geothermal has secured a combined £36.8 million across a 2019 £16.8 million funding package and a 2021 £20 million package from a mix of European Regional Development Fund grants, Cornwall Council grants, and commercial capital from GCP Infrastructure Investments Limited (advised by Gravis Capital Management). It is privately held, incorporated in the UK, operates with a small core team (12 full-time staff, including 8 engineers) supplemented by contractor drilling crews, and in February 2025 signed a collaboration agreement with Baker Hughes to advance geothermal opportunities across the UK.

Name

Eden Geothermal

Legal name

Eden Geothermal Limited

Website

https://edengeothermal.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

11–50 employees

Short description

Eden Geothermal is a UK-based geothermal project developer that operates the country's first deep geothermal well in 37 years at the Eden Project in Cornwall, supplying renewable heat to the Eden Biomes, Growing Point nursery, and surrounding buildings via a 3.8 km heat main, and offering geothermal development consultancy across the UK.

Ownership category

akta.pro rank

Product category

Geothermal Renewable Heat Supply

NAICS

Geothermal Electric Power Generation (221116), Steam and Air-Conditioning Supply (221330), Geophysical Surveying and Mapping Services (541360)

SIC

Cogeneration Services & Small Power Producers (4991), Oil & Gas Field Exploration Services (1382)

akta.pro primary industry

Geothermal Direct Use Heat Projects (District Heating, Greenhouses, Aquaculture, Industrial Heat) (EUAMAEAG)

akta.pro secondary industries

Geothermal Power Plant Development & IPP (Permitting, Financing, Project Development) (EUAMAEAD), Geothermal Drilling & Well Construction (Production/Injection, Directional, Well Services) (EUAMAEAB), Geothermal Reservoir Engineering & Wellfield Management (Modeling, Stimulation, Reinjection Strategy) (EUAMAEAC)

Keywords

• Deep geothermal energy
• Renewable heat supply
• Engineered geothermal systems
• Geothermal project development
• Baseload renewable heat

Headquarters

HQ city

Par

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Technology or R&D, Personnel, Operations, Supply Chain

Revenue model

1. Geothermal Heat Supply: Eden Geothermal generates revenue by supplying geothermal heat to anchor customers. The first and primary customer is the Eden Project, where geothermal heat is supplied to the Biomes, Growing Point nursery, and surrounding offices and buildings via a dedicated 3.8km heat main. The system operates as a closed-loop, selling heat as a utility service under long-term heat supply agreements.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Eden Geothermal develops and operates deep geothermal infrastructure to extract and supply renewable heat from hot rock formations approximately 4.5–5km underground. Its flagship asset is the UK's first operational deep geothermal heating plant in 37 years at the Eden Project in Cornwall, which delivers renewable heat to the Eden Project Biomes, Growing Point nursery and surrounding buildings via a 3.8km insulated heat main. The company also provides geothermal project development consultancy services to support the replication of similar projects across the UK.

Product overview

Eden Geothermal operates a deep geothermal heat system at the Eden Project in Cornwall, which extracts renewable thermal energy from granite formations approximately 5km underground. The core product is the Deep Geothermal Heat System, which uses a coaxial circulation system to extract and deliver geothermal heat. This heat is distributed through a 3.8km heat main to Eden Project facilities including the iconic Biomes and Growing Point nursery. Additionally, the company offers Geothermal Development Consultancy Services to help develop similar projects across the UK. The company is part-funded by the European Regional Development Fund and Cornwall Council, and works with delivery partners including Eden Project, EGS Energy, Bestec UK, and the University of Exeter.

Differentiator

Problem solved

Functional benefit

Products and services

• Deep Geothermal Heat System A deep geothermal heating system that extracts renewable heat from hot rocks approximately 4.5–5km beneath the Earth's surface at the Eden Project in Cornwall. The system uses a coaxial circulation system with vacuum insulated tubing and a downhole pump to bring hot water to the surface, where plate heat exchangers extract thermal energy for distribution to connected facilities via a 3.8km insulated heat main. The closed-loop operation does not require hydraulic fracturing and does not risk contaminating local aquifers.
• Renewable Heat Supply Managed utility service supplying renewable geothermal heat to the Eden Project Biomes, greenhouses, Growing Point nursery, and surrounding offices and buildings via a 3.8km insulated heat main connecting the deep geothermal borehole to the Eden Energy Centre. Heat is delivered as a managed service under long-term heat supply agreements.
• Geothermal Development Consultancy Services Consultancy services supporting the development of geothermal projects from concept to completion across the UK, leveraging Eden Geothermal's operational experience to provide geology support, drilling operations support, project development expertise, and engineering capabilities for other developers and customers.

Quantifiable outcome

• Geothermal heat supply to Eden Project Biomes, Growing Point nursery, and surrounding buildings operational from June 2023
• +2 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered flagship / core, core and minor.

• Eden Projectflagship / coreStrategic or Co-development PartnerEden Project is a founding partner and the home of Eden Geothermal's first operational geothermal well. Eden Project provides the site location and is the primary heat customer, receiving renewable geothermal heat for its iconic Biomes, Growing Point nursery, and surrounding buildings.
• EGS Energyflagship / coreStrategic or Co-development PartnerEGS Energy is a geothermal development and consultancy company and a core project partner alongside Eden Project. EGS Energy provides geothermal development expertise, and Technical Director Roy Baria (with 40+ years of deep geothermal experience) leads technical direction.
• BESTEC UKcoreTechnology or IntegrationBESTEC UK is a specialist geothermal development company providing analysis, planning, and support services from project conception through to delivery as part of Eden Geothermal's delivery partner ecosystem.
• University of Exeter (Camborne School of Mines)coreStrategic or Co-development PartnerThe Camborne School of Mines, part of the University of Exeter, is Eden Geothermal's academic research partner. It provides geological research, supervised PhD projects (Ben Adams, Philip Henes), wellsite geology support via GeoScience Ltd, and ongoing research to de-risk investment in new geothermal sites.
• Baker Hughesflagship / coreStrategic or Co-development PartnerIn February 2025, Eden Geothermal entered into a collaboration agreement with Baker Hughes to advance geothermal opportunities within the UK. The partnership covers exploring further development of the existing Eden Geothermal facility and advancing geothermal projects more broadly across the UK.
• GeoScience LtdcoreTechnology or IntegrationGeoScience Ltd provides wellsite geology services for the Eden Geothermal Project, contributing expert geological monitoring during drilling and sampling operations.
• National Geothermal CentrecoreStrategic or Co-development PartnerThe National Geothermal Centre (NGC), launched with funding from Durham University, Net Zero Technology Centre (NZTC), SHIFT Geothermal, and The Reece Foundation, is the UK's first national centre to advance geothermal energy. NGC visited Eden Geothermal as part of a tour of Cornish geothermal sites.
• British Geological SurveyminorStrategic or Co-development PartnerThe British Geological Survey (BGS) is a world-leading independent geoscientific research organisation referenced as a partner for geothermal resources and education. BGS has produced educational resources on geothermal energy for schools.

Scale indicators7 records

Recent moves10 records

Expansion highlights6 records

Broad incumbents

• Baker Hughes: Global energy technology company with a dedicated geothermal services and equipment arm, and Eden Geothermal's strategic collaboration partner since February 2025. Comparable as a broader incumbent with overlapping geothermal drilling, power island, and project development capabilities.
• Vulcan Energy Resources: ASX-listed geothermal lithium producer in the Upper Rhine Valley, Germany — a larger, capital-markets-listed operator developing commercial-scale geothermal combined with lithium extraction. Comparable in European deep geothermal deployment and heat-offtake economics.

Regional players

• Geo-Energie Suisse: Swiss deep geothermal project developer pursuing EGS in the Swiss Molasse Basin for heat and power. Comparable in deep EGS drilling methodology and district-heating commercial model, but operating in Switzerland rather than the UK.
• Cornish Lithium: Cornwall-based mineral resource company developing lithium extraction from Cornish geothermal brines. Comparable in Cornish operating geography, subsurface resource development, and shared public/policy stakeholder ecosystem.

Emerging players

• Sage Geosystems: US-based closed-loop geothermal company focused on dispatchable renewable baseload power and heat. Comparable to Eden in deep-drilling geothermal technology and baseload decarbonisation use cases.
• CeraPhi Energy: UK-based closed-loop geothermal technology developer with UK and international projects. Comparable to Eden as an emerging UK-focused geothermal technology developer targeting deep heat extraction.

Direct peers

• Geothermal Engineering Ltd: UK-based deep geothermal developer drilling the United Downs Deep Geothermal Project in Cornwall, directly comparable to Eden Geothermal in technology (deep granite EGS), geography (Cornwall), and end market (UK heat and power).
• Fervo Energy: US-based enhanced geothermal systems (EGS) developer using horizontal drilling and fibre-optic sensing to extract geothermal heat/power. Closely comparable to Eden in EGS approach, drilling technology, and baseload renewable power/heat ambition.
• Eavor Technologies: Canada-based closed-loop geothermal technology developer pursuing scalable deep geothermal heat and power across multiple geographies. Directly comparable to Eden in deep-drilling innovation and baseload dispatchable renewable heat/power business model.
• EGS Energy: UK geothermal development and consultancy company that is itself a core project partner to Eden Geothermal, with Technical Director Roy Baria (40+ years deep geothermal expertise). Directly comparable as a UK EGS developer and consultancy.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/edengeothermal
• Facebookfacebook.com/edengeothermal
• LinkedInlinkedin.com/company/eden-geothermal-limited

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Eden Geothermal