Gwynt Glas
Gwynt Glas Offshore Wind Farm Limited is a pre-revenue UK joint venture (EDF Renewables UK, ESB, Reventus Power — each 33.33% — with DP Energy as developer) developing a proposed 1.5 GW floating offshore wind farm in the Celtic Sea, ~40 km off Wales, targeting national grid supply from the early 2030s.
- Company typePrivate
- Founded-
- HeadquartersWales, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Gwynt Glas does
Gwynt Glas Offshore Wind Farm Limited is a pre-revenue UK infrastructure developer advancing a proposed up to 1.5 GW floating offshore wind (FLOW) farm in the Celtic Sea, approximately 40 km off the Welsh coast at its closest point. The project is being developed as a joint venture between EDF Renewables UK, ESB, and Reventus Power, with each partner holding an equal 33.33% share; DP Energy serves as the exclusive development partner, contributing local Pembrokeshire expertise from its Pembroke Dock office (opened 2021). Its core product uses floating platform substructures (barges, semi-submersibles, tension leg platforms) suitable for waters deeper than 80 m where fixed-bottom offshore wind is not viable, with EDF power solutions providing FLOW technical expertise drawn from building France's first floating offshore wind farm (Provence Grand Large).
The business is operating as a project development company rather than a revenue-generating utility. Go-to-market follows the UK Nationally Significant Infrastructure Project (NSIP) framework: the project secured preferred bidder status in The Crown Estate's Round 5 Celtic Sea auction in June 2025, signed the Agreement for Lease in October 2025, and submitted an Environmental Impact Assessment Scoping Report to the Planning Inspectorate in June 2026 as part of the Development Consent Order (DCO) consenting process targeted for completion in 3-5 years. Once consent is obtained and the farm is built, electricity will be sold into the UK national grid via subsea export cables; operational status is targeted for the early 2030s. Adjacent monetisation channels include supply chain development events in South Wales and South West England and the Destination Renewables education programme with Pembrokeshire College, but these are stakeholder-engagement vehicles rather than material revenue lines today.
The company is privately held, domiciled in England/UK (GBR), with offices in Pembroke Dock (Pembrokeshire), Cardiff, and Penryn (Cornwall), and an employee base of 11-50. Award recognition includes the 2022 Offshore Wind Energy Skills Award from Renewable UK (Global Offshore Wind Awards) and back-to-back shortlistings for the same award in 2023, primarily linked to the Destination Renewables workforce programme. There are no disclosed funding rounds, acquisitions, or external capital raises; development appears funded directly by the three JV parents.
Gwynt Glas firmographics
Firmographics- Name
- Gwynt Glas
- Legal name
- Gwynt Glas Offshore Wind Farm Limited
- Website
- https://gwyntglas.com
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Gwynt Glas Offshore Wind Farm Limited is a pre-revenue UK joint venture (EDF Renewables UK, ESB, Reventus Power — each 33.33% — with DP Energy as developer) developing a proposed 1.5 GW floating offshore wind farm in the Celtic Sea, ~40 km off Wales, targeting national grid supply from the early 2030s.
- Ownership category
- akta.pro rank
Gwynt Glas industry classification
Industry- NAICS
- Wind Electric Power Generation (221115)
- akta.pro primary industry
- Offshore Wind Project Development & Leasing (EUAMACAB)
- akta.pro secondary industries
- Offshore Wind Power Generation (Floating) (EUACAFAC), Wind Farm Development & Permitting (Greenfield/Brownfield) (EUACAFAE)
Keywords
Where Gwynt Glas is headquartered
LocationHeadquarters
- HQ city
- Wales
- HQ country
- United Kingdom
- HQ region
- Europe
Offices3 records
Markets served
Gwynt Glas business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Infrastructure, Technology or R&D, Personnel, Operations, Marketing or Sales, Supply Chain
Revenue model
- Offshore Wind Energy Generation: Once operational, the project will generate revenue through the sale of electricity generated from floating offshore wind turbines. The project targets full operational status in early 2030s following the development and consenting phase.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels6 records
Gwynt Glas product offering
Product offeringCore offering
Gwynt Glas is developing a floating offshore wind farm in the Celtic Sea, located approximately 40km off the Welsh coast, with potential installed generating capacity of up to 1.5GW. The project is being progressed through The Crown Estate's Leasing Round 5 process and is classified as a Nationally Significant Infrastructure Project requiring a Development Consent Order. The company is a joint venture between EDF Renewables UK, ESB, and Reventus Power (each 33.33%), with DP Energy as exclusive development partner, aiming to deliver clean renewable energy to the UK national grid.
Product overview
Gwynt Glas is a joint venture between EDF Renewables UK, ESB, and Reventus Power (each holding 33.33%), with DP Energy as exclusive development partner. The company's primary offering is the Gwynt Glas Floating Offshore Wind Farm — a proposed 1.5GW floating offshore wind project in the Celtic Sea, Welsh waters. Supporting products include the Destination Renewables education program for developing future skilled workforce, a Supply Chain Development Program to ready regional businesses for project opportunities, and a Stakeholder Consultation Program for community and industry engagement. The project is in development phase, having secured preferred bidder status in The Crown Estate Round 5 auction (June 2025) and signed an Agreement for Lease (October 2025).
Differentiator
Problem solved
Functional benefit
Quantifiable outcome
- Up to 1.5GW of renewable energy capacity
- +2 more outcomes
Companies that use Gwynt Glas
Customer profileSegments4 records
Gwynt Glas technology and API
TechnologyAPI detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
Gwynt Glas partnerships and signals
Strategic signalPartnerships
15 partnerships are on record, tiered supporting and core.
- Sea-ChangerssupportingNational marine conservation charity funding partner for Reef Cubes installation project. Collaborated on biodiversity enhancement initiative at Falmouth Harbour.
- Our Only WorldsupportingLocal marine charity managing Reef Cubes project locally. Committed to marine sustainability and expert at community engagement in the region.
- Arc MarinesupportingCornwall-based company manufacturing Reef Cubes from recycled aggregate and sand (quarrying by-product). Designed to regenerate fragile marine ecosystems.
- Falmouth HarboursupportingHarbour authority hosting Reef Cubes installation. Committed to health and prosperity of local waters and users. Plans to work with Exeter University to monitor impact.
- EDF Renewables UKcoreJoint venture partner owning 33.33% share. EDF Renewables UK is a subsidiary of the EDF Group, one of the world's largest low carbon electricity companies with 48 renewable energy sites (1.5+ GW) operational and almost 14 GW in planning. Provides technical expertise including experience from France's first floating offshore wind farm (Provence Grand Large).
- ESBcoreJoint venture partner owning 33.33% share. Irish state-owned electricity company established in 1927, majority owned by Irish Government (96.9%). Regulated asset base of ~€12.0 billion, 30% share of generation in all-island market, supplying 2+ million customer accounts. Pursuing Net Zero by 2040 strategy.
- Reventus PowercoreJoint venture partner owning 33.33% share. Global offshore wind investor. Worked with EDF on Provence Grand Large, France's first floating offshore wind farm. Expanding global offshore wind portfolio.
- DP EnergycoreExclusive development partner leveraging local knowledge and expertise. Irish company headquartered in Cork with over 30 years experience. Developed 1+ GW of renewable projects operational. Operating in UK since 1990s; opened Pembroke Dock office in 2021 for Celtic Sea floating wind opportunities.
- Pembrokeshire CollegecoreLead education partner for Destination Renewables programme. Wales' largest provider of post-16 education. Partnered to develop 2-year curriculum enrichment programme for 16-18 year olds preparing them for renewable energy careers.
- Pembrokeshire Coastal ForumsupportingEducation partner supporting renewable industry in delivery of Destination Renewables programme. Specialist education team manages industry content standards. Also supported educational outreach activities.
- Swansea Bay City DealsupportingSkills and Talent programme jointly funded by Welsh and UK Governments. Underpins Destination Renewables education programme with private sector investment.
- Celtic Sea Developer AlliancesupportingIndustry partnership for Celtic Sea floating wind development coordination.
- Celtic Sea ClustersupportingIndustry cluster supporting Celtic Sea floating wind development and business growth.
- Renewables UKsupportingIndustry body membership supporting renewable energy sector development.
- Milford Haven Waterway Future Energy ClustersupportingLocal energy cluster supporting future energy development in Pembrokeshire region.
Scale indicators6 records
Recent moves7 records
Expansion highlights5 records
Gwynt Glas competitors and assessment
Company assessmentEmerging players
- Aker Offshore Wind: Norway-headquartered developer of floating offshore wind projects based on Aker's semi-submersible design. Comparable as an emerging FLOW developer partnering with utility majors to deliver gigawatt-scale floating wind farms.
- Principle Power: US/Portugal-based floating offshore wind technology company behind the WindFloat semi-submersible platform, with active UK/Europe FLOW pipeline. Comparable as the leading independent floating foundation IP licensor that Gwynt Glas-class developers rely on for core platform technology.
Direct peers
- Simply Blue Energy: Ireland/UK-headquartered floating offshore wind developer developing early-stage FLOW projects in the Celtic Sea and elsewhere. Directly comparable to Gwynt Glas as a same-region, same-technology Celtic Sea floating wind developer competing in adjacent Round 5 lease areas.
- BlueFloat Energy: Spain-founded global floating offshore wind developer with an active UK/Celtic Sea project pipeline. Directly comparable as another pure-play FLOW developer securing seabed rights in the same Celtic Sea Round 5 process that Gwynt Glas won.
- Ocean Winds (EDP + Engie JV): Offshore wind joint venture between EDP and Engie, active in floating offshore wind globally and a competitor for Celtic Sea seabed rights. Directly comparable as a utility-backed offshore wind developer pursuing FLOW projects in European waters at gigawatt scale.
- Hexicon: Sweden-based floating offshore wind project developer pursuing utility-scale FLOW projects in the UK and Europe. Directly comparable as a project developer (not turbine maker) targeting multi-hundred-MW floating wind farms using semi-submersible platforms.
Broad incumbents
- ScottishPower Renewables (Iberdrola): UK arm of Iberdrola, one of the UK's largest offshore wind developers with multiple fixed-bottom projects under construction (e.g., East Anglia, Wikinger). Comparable as a large incumbent offshore wind developer actively engaged in Celtic Sea / UK seabed rights and targeting floating wind in the next leasing rounds.
- Equinor: Norwegian multinational energy company and operator of Hywind Scotland, the world's first commercial floating offshore wind farm. Comparable as a major-incumbent FLOW developer with deep offshore wind operating experience and balance sheet capacity orders of magnitude larger than Gwynt Glas.
- RWE Renewables: UK and global offshore wind developer with operational fixed-bottom projects (Sofia, Triton Knoll) and growing interest in floating technology. Comparable as a utility-grade incumbent that Gwynt Glas would compete with for CfDs, supply chain capacity, and grid capacity in the UK.
Others
- DP Energy: Ireland-based renewable energy developer and exclusive development partner of Gwynt Glas with 30+ years and 1+ GW of operational renewable projects. Comparable as the in-house developer/asset manager feeding Gwynt Glas with pipeline expertise, project development services, and shared Pembroke Dock operations.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights5 records
Customer concentration
Gwynt Glas social profiles
Digital presenceGwynt Glas financial estimates
Financial estimateRevenue estimate
Valuation estimate
Gwynt Glas leadership team
Management profileNumber of profiles
Gwynt Glas funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Gwynt Glas 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 Gwynt Glas
What does Gwynt Glas do?
Gwynt Glas is developing a floating offshore wind farm in the Celtic Sea, located approximately 40km off the Welsh coast, with potential installed generating capacity of up to 1.5GW. The project is being progressed through The Crown Estate's Leasing Round 5 process and is classified as a Nationally Significant Infrastructure Project requiring a Development Consent Order. The company is a joint venture between EDF Renewables UK, ESB, and Reventus Power (each 33.33%), with DP Energy as exclusive development partner, aiming to deliver clean renewable energy to the UK national grid.
Is Gwynt Glas a public or private company?
Gwynt Glas is a private company. It is currently operating.
When was Gwynt Glas founded?
Gwynt Glas was founded in -1. It employs 11 to 50 people.
Where is Gwynt Glas based?
Gwynt Glas is headquartered in Wales, United Kingdom, in the Europe region.
How does Gwynt Glas make money?
One revenue line is on record: offshore Wind Energy Generation.
Who are Gwynt Glas's main competitors?
Emerging players on record are Aker Offshore Wind and Principle Power. Direct peers are Simply Blue Energy, BlueFloat Energy, Ocean Winds (EDP + Engie JV) and Hexicon. Broad incumbents are ScottishPower Renewables (Iberdrola), Equinor and RWE Renewables. DP Energy is listed as an others.
Does Gwynt Glas have an API?
No public API is recorded for Gwynt Glas.
What industry is Gwynt Glas in?
Its primary akta.pro industry code is EUAMACAB, Offshore Wind Project Development & Leasing, with a secondary code of EUACAFAC, Offshore Wind Power Generation (Floating). Its NAICS code is 221115.