Clearstone Energy
Clearstone Energy is a UK-based independent developer of large-scale, grid-connected solar, battery energy storage, and AI-ready data centre infrastructure, serving institutional investors, landowners, and data centre operators across the UK and Italy.
- Company typePrivate
- Founded2016
- HeadquartersLondon, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Clearstone Energy does
Clearstone Energy is a UK-based independent infrastructure developer founded in 2016 and headquartered in London. The company develops large-scale, grid-connected renewable energy projects — utility-scale solar photovoltaic farms and lithium-ion battery energy storage systems (BESS) branded as 'Energy Hubs' — alongside AI-ready data centre campuses. All projects are strategically sited to connect directly to the UK's high voltage electricity transmission network, with grid connections secured before land acquisition. The portfolio comprises 2GW of low-carbon energy projects delivered to date, 4GW in active development, and a 6.5 million square foot data centre pipeline including the 300MW Ebbsfleet AI Data Centre Campus, which received Nationally Significant Infrastructure Project (NSIP) designation in July 2026.
The company's business model operates as a project developer: it originates sites, secures grid connections, navigates planning consent, develops community benefit packages, and either sells operational or ready-to-build assets to institutional investors or retains ownership. Disclosed asset sales include 107MW of BESS to Foresight Group (May 2023) and a 200MW/800MWh Hartlepool BESS project to Field Energy (November 2024). Secondary revenue comes from index-linked land leases with landowners over 40-year terms. The customer base spans landowners (land supply), institutional investors (asset acquirers including Foresight and Field Energy), local communities (community benefit recipients), and future data centre operators and enterprise customers. The company has expanded internationally into Italy (January 2025) with a 1GW BESS pipeline target.
Clearstone differentiates through a connection-first development approach, biodiversity-led design (65% average biodiversity net gain on solar, 20%+ on battery), and proprietary safety and cooling architectures including a battery safety standards plan developed with AECOM and closed-loop liquid cooling systems achieving PUE of 1.2. The go-to-market relies on direct landowner engagement, partnerships with land agents, public consultation and co-design workshops for community buy-in, and a strategic partnership with National Grid as launch partner for its Energy Park programme. The company is privately held with no institutional venture or private equity backing disclosed, and revenue figures are not publicly available.
Clearstone Energy firmographics
Firmographics- Name
- Clearstone Energy
- Legal name
- Clearstone Services Limited
- Website
- https://clearstoneenergy.com
- Company type
- Private
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Clearstone Energy is a UK-based independent developer of large-scale, grid-connected solar, battery energy storage, and AI-ready data centre infrastructure, serving institutional investors, landowners, and data centre operators across the UK and Italy.
- Ownership category
- akta.pro rank
Clearstone Energy industry classification
Industry- Product category
- Renewable Energy Infrastructure Development
- NAICS
- Electric Power Generation (22111)
- SIC
- Cogeneration Services & Small Power Producers (4991)
- akta.pro primary industry
- Project Finance & Capital Structuring (Debt/Tax Equity/Project Bonds) (EUAMAAAD)
- akta.pro secondary industry
- Incentives, Grants & Program Administration (Auctions, Tenders, IRA/ITC/PTC Advisory) (EUAMAAAJ)
Keywords
Where Clearstone Energy is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Clearstone Energy business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales, Supply Chain
Revenue model
- Project Development and Sale: Clearstone Energy develops renewable energy projects (solar farms, battery storage) and data centre campuses through planning, then sells operational assets to investors or retains ownership. Sold 107MW of BESS assets to Foresight and 200MW Hartlepool project to Field Energy.
- Land Leasing Income: Clearstone leases land from landowners for renewable energy projects, providing index-linked rental income over 40-year operational periods. Revenue comes from electricity generation and grid services sold to National Grid and energy suppliers.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
Clearstone Energy product offering
Product offeringCore offering
Clearstone Energy is a UK-based independent developer that originates, permits, and constructs large-scale renewable energy projects and data centre infrastructure. It develops utility-scale solar farms, battery energy storage systems marketed as Energy Hubs, and data centre campuses that connect to the UK's high voltage electricity transmission network, then sells completed assets to long-term institutional investors and operators. The company secures NESO grid connections and planning permission before committing to land, and operates a connection-first development model with offices across the UK and in Italy.
Product overview
Clearstone Energy operates as an independent developer of large-scale grid-connected infrastructure projects spanning three core product areas: utility-scale solar farms (including co-located battery storage), standalone battery energy storage systems branded as 'Energy Hubs', and data centre campuses designed for AI and cloud applications. The company develops projects from inception through planning consent and construction, with a portfolio including named projects such as Bramford Storage (300MW BESS), Great Oak Energy Hub (400MW BESS), Junction 27 Energy Hub (400MW BESS), Warley Energy Hub 2 (200MW BESS), and Ebbsfleet AI Data Centre Campus (300MW). Projects are strategically located to connect to the UK's high voltage electricity transmission network and feature community benefit packages, biodiversity enhancements, and sustainable design principles.
Differentiator
Problem solved
Functional benefit
Products and services
- Utility-Scale Solar Farms Large-scale solar PV projects developed by Clearstone Energy for connection to the UK high voltage electricity transmission network, originated under the firm's connection-first strategy and built for sale to institutional investors and operators.
- Energy Hubs (Battery Energy Storage Systems) Clearstone Energy's branded Energy Hubs, which combine battery energy storage systems with solar generation and are designed to connect to the UK high voltage transmission network for sale to long-term institutional investors and operators.
- Data Centre Campuses Grid-powered data centre campus developments located adjacent to UK transmission substations, integrated with renewable energy and battery storage, with closed-loop liquid cooling for data centre efficiency, offered to hyperscalers, data centre operators, and colocation customers.
- Land Lease Arrangements for Renewable and Data Centre Projects Long-term, index-linked land lease packages offered to UK landowners whose land hosts Clearstone-developed solar, battery storage, or data centre projects, providing stable recurring income alongside a £50,000 per year community benefit fund per project.
- Bramford Storage (BESS Project) Bramford Storage is a battery energy storage system project developed by Clearstone Energy, connected to the UK high voltage electricity transmission network and forming part of the company's operational BESS pipeline.
- Great Oak Energy Hub (Solar and Storage Project) Great Oak Energy Hub is a Clearstone Energy-developed project combining solar generation with battery energy storage, designed for connection to the UK high voltage transmission network and developed under the company's connection-first model.
Quantifiable outcome
- 65% average biodiversity net gain on solar projects
- +7 more outcomes
Companies that use Clearstone Energy
Customer profileNamed customers1 record
Segments4 records
Ideal customer profiles3 records
Clearstone Energy technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Clearstone Energy partnerships and signals
Strategic signalPartnerships
20 partnerships are on record, tiered core, major and supporting.
- National GridcoreLaunch partner for National Grid's Energy Park programme designed to accelerate battery storage connections to the transmission network. All Clearstone projects connect to National Grid's high voltage electricity transmission infrastructure.
- GenslercoreGlobal architecture, design and planning firm engaged for Ebbsfleet AI Data Centre Campus project. Has designed large-scale data centres in UK, US and China.
- AECOMcoreGlobal infrastructure and engineering consultancy providing planning, environmental, and construction management services for data centre projects. Collaborated with Clearstone on Battery Safety Standards Plan.
- Field EnergymajorClearstone sold the 200MW/800MWh Hartlepool battery storage project (now Field Hartmoor) to Field Energy. Field operates 11 GW of battery storage projects across Europe.
- Mischon De ReyacoreLegal advisor to Clearstone Energy for the Hartlepool battery storage project sale to Field Energy.
- Fortia InsightsupportingProvided economic modelling for Ebbsfleet AI Data Centre Campus, forecasting significant local economic benefits including job creation and GVA generation.
- ArcussupportingPartner logo listed on About page - services not specified.
- DWDsupportingPartner logo listed on About page - services not specified.
- InacousticsupportingPartner logo listed on About page - services not specified.
- RSKsupportingPartner logo listed on About page - environmental and engineering consultancy services.
- SLR ConsultingsupportingPartner logo listed on About page - environmental consultancy services.
- SiemenssupportingPartner logo listed on About page - energy and infrastructure technology provider.
- ShellsupportingPartner logo listed on About page - energy sector partner.
- Canadian SolarsupportingPartner logo listed on About page - solar panel manufacturer.
- SMAsupportingPartner logo listed on About page - solar inverter manufacturer.
- FluencesupportingPartner logo listed on About page - energy storage technology provider.
- HVSSsupportingPartner logo listed on About page - services not specified.
- DeloittesupportingPartner logo listed on About page - professional services.
- Aurora Energy ResearchsupportingPartner logo listed on About page - energy sector analytics and consulting.
- Ashfords LLPsupportingPartner logo listed on About page - law firm.
Scale indicators15 records
Recent moves6 records
Expansion highlights6 records
Clearstone Energy competitors and assessment
Company assessmentDirect peers
- Field Energy: UK- and Europe-focused battery energy storage developer and operator, with 11 GW of BESS projects in development and construction across Europe. Field acquired Clearstone's 200 MW/800 MWh Hartlepool project, making it a directly comparable peer in the UK grid-scale BESS development space.
- NextEnergy Capital: Independent solar developer and fund manager with a substantial UK and international solar pipeline. Closely comparable to Clearstone as a UK-focused independent renewable developer pursuing utility-scale solar and battery projects.
- Enso Energy: UK independent renewable developer focused on solar and battery storage projects, with a comparable pipeline of grid-connected utility-scale projects. Direct peer in the UK solar/BESS development space.
- Hive Energy: UK-based independent renewable energy developer with utility-scale solar and battery storage projects. Directly comparable to Clearstone's UK solar and BESS development pipeline.
- KAO Data: UK-based developer and operator of high-performance, sustainable data centres designed for AI and advanced computing workloads. Closely comparable to Clearstone's data centre strategy including sustainability focus and AI/customer alignment.
- Vantage Data Centers: Global hyperscale data centre developer and operator with multiple campuses in the UK and Europe. Directly comparable to Clearstone's data centre business in building large-scale, sustainable AI-ready data centre capacity.
Broad incumbents
- RWE Renewables: One of Europe's largest renewable energy developers and operators, with utility-scale solar, wind, and battery storage across multiple geographies. Represents the well-capitalized incumbent that Clearstone competes with for grid connections, land, and capital.
- Foresight Group: UK infrastructure and environmental investment manager that acquires and operates BESS assets (including 107 MW purchased from Clearstone). Comparable as a counterparty in Clearstone's asset sale model, though its primary role is investor/operator rather than developer.
- Digital Realty: Global hyperscale data centre provider operating hundreds of facilities worldwide. Represents the established incumbent data centre operator that Clearstone will compete with for enterprise and AI tenant relationships.
- EDF Renewables: Global renewable energy developer and operator, with substantial UK solar and battery storage projects. A broad incumbent that competes with Clearstone for development opportunities and institutional capital.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks7 records
Key highlights7 records
Customer concentration
Clearstone Energy social profiles
Digital presenceClearstone Energy financial estimates
Financial estimateRevenue estimate
Valuation estimate
Clearstone Energy leadership team
Management profileNumber of profiles
Profiles9 records
Clearstone Energy subsidiaries and ownership
Company hierarchySubsidiaries2 records
Clearstone Energy funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Clearstone Energy M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Clearstone Energy
What does Clearstone Energy do?
Clearstone Energy is a UK-based independent developer that originates, permits, and constructs large-scale renewable energy projects and data centre infrastructure. It develops utility-scale solar farms, battery energy storage systems marketed as Energy Hubs, and data centre campuses that connect to the UK's high voltage electricity transmission network, then sells completed assets to long-term institutional investors and operators. The company secures NESO grid connections and planning permission before committing to land, and operates a connection-first development model with offices across the UK and in Italy.
Is Clearstone Energy a public or private company?
Clearstone Energy is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Clearstone Energy founded?
Clearstone Energy was founded in 2016. It employs 11 to 50 people.
Where is Clearstone Energy based?
Clearstone Energy is headquartered in London, United Kingdom, in the Europe region.
How does Clearstone Energy make money?
Two revenue lines are on record. Project Development and Sale is the primary driver. The others are land Leasing Income.
Who are Clearstone Energy's main competitors?
Direct peers on record are Field Energy, NextEnergy Capital, Enso Energy, Hive Energy, KAO Data and Vantage Data Centers. Broad incumbents are RWE Renewables, Foresight Group, Digital Realty and EDF Renewables.
Does Clearstone Energy have an API?
No public API is recorded for Clearstone Energy.
What industry is Clearstone Energy in?
Clearstone Energy's product category is Renewable Energy Infrastructure Development. Its primary akta.pro industry code is EUAMAAAD, Project Finance & Capital Structuring (Debt/Tax Equity/Project Bonds), with a secondary code of EUAMAAAJ, Incentives, Grants & Program Administration (Auctions, Tenders, IRA/ITC/PTC Advisory). Its NAICS code is 22111 and its SIC code is 4991.