Cerulean Winds
Cerulean Winds Ltd is a UK-based floating offshore wind developer supplying green electricity via PPAs to North Sea oil and gas operators and the UK grid through its three interconnected wind farms—Aspen, Beech, and Cedar—totaling 3 GW+ of planned capacity.
- Company typePrivate
- Founded2020
- HeadquartersLondon, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Cerulean Winds does
Cerulean Winds Ltd is a UK-based green energy infrastructure developer founded in 2020 that develops floating offshore wind (FLOW) projects in the Central North Sea to supply renewable electricity directly to industrial users—primarily oil and gas operators—for the electrification of offshore platforms. The company operates as originator, developer, and producer across three interconnected wind farm sites: Aspen (1 GW, located approximately 84 km offshore from Peterhead, targeting first generation before 2030), Beech (first electrons expected in the mid-2030s), and Cedar (operational from the early 2030s with cable connection to the UK grid). The combined platform targets more than 3 GW of capacity and over 300 turbines, with Aspen alone projected to supply renewable power to around 1.8 million homes annually and abate 2 million tonnes of CO₂ per year over a 50-year operational life.
The underlying technology combines floating turbine structures adapted from oil and gas subsea engineering (branded as Tri-Floater subsea technology), a High Voltage Alternating Current (HVAC) transmission system, flexible dynamic cabling, and a basin-wide ring-main architecture linking all three sites to maximise uptime, redundancy, and capacity factors cited at 60%+. Delivery is structured as an alliance-based consortium with Tier 1 industrial partners—NOV and Siemens Energy for delivery, Bilfinger for operations and maintenance, and Ocean Installer for marine construction and installation—with Arup acting as Owner's Engineer and Haventus anchoring the strategic assembly, deployment and operations hub at the Ardersier Energy Transition Facility on the Scottish coast.
Cerulean Winds generates revenue through long-term Power Purchase Agreements (PPAs) with oil and gas operators to displace diesel and gas-fired generation on offshore platforms, with surplus power exported to the UK national grid via the Hurlie substation near Stonehaven. Pricing is bespoke and not publicly disclosed. A future High Voltage Direct Current (HVDC) network for cross-border export to Europe is signalled as a longer-term opportunity. The company is privately held with no disclosed venture capital rounds; £10.9 billion of private investment is committed across the Aspen project's 50-year lifecycle (£5.9 billion during development and construction, ~£100 million annually during operations). Aspen offshore consent applications were submitted to the Scottish Government in September 2025.
Cerulean Winds firmographics
Firmographics- Name
- Cerulean Winds
- Legal name
- Cerulean Winds Ltd
- Website
- https://ceruleanwinds.com
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Cerulean Winds Ltd is a UK-based floating offshore wind developer supplying green electricity via PPAs to North Sea oil and gas operators and the UK grid through its three interconnected wind farms—Aspen, Beech, and Cedar—totaling 3 GW+ of planned capacity.
- Ownership category
- akta.pro rank
Cerulean Winds industry classification
Industry- Product category
- Floating Offshore Wind Energy
- NAICS
- Wind Electric Power Generation (221115), Electric Power Transmission, Control, and Distribution (22112)
- SIC
- Electric Services (4911)
- akta.pro primary industry
- Offshore Wind Power Generation (Floating) (EUACAFAC)
- akta.pro secondary industries
- Offshore Wind Substructures & Marine Engineering (Monopiles, Jackets, Floating) (EUAMACAE), Wind Grid Interconnection & Power Systems (Transformers, Reactive Power, SCADA) (EUAMACAK), Advanced Wind Technology R&D (Floating Offshore, Airborne Wind, New Rotor/Blade Concepts) (EUAMAOAB), Wind Farm Ownership & Operations (IPP/Utility-Owned Asset Operations) (EUACAFAF), Wind Farm Development & Permitting (Greenfield/Brownfield) (EUACAFAE)
Keywords
Where Cerulean Winds is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
Cerulean Winds business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Infrastructure, Technology or R&D, Supply Chain, Personnel, Operations
Revenue model
- Power Purchase Agreements (PPAs): Supply of green electricity to oil and gas operators through long-term Power Purchase Agreements for electrification of offshore platforms. Provides affordable green electrons to enable decarbonisation of oil and gas facilities.
- Grid Export: Sale of surplus green power to UK electricity grid through grid connection at Hurlie substation. Power exported to homes, industrial users and businesses.
- HVDC Export Network: Potential future export of excess power to Europe through High Voltage Direct Current network connecting to other parts of the North Sea
Go-to-market motion2 records
Distribution channels2 records
Marketing channels4 records
Cerulean Winds product offering
Product offeringCore offering
Cerulean Winds is a privately funded UK developer of large-scale floating offshore wind farms — Aspen, Beech, and Cedar — built on its proprietary semi-submersible Tri-Floater platform and connected to shore via the bespoke North Sea Renewables Grid (NSRG) HVAC subsea transmission system. The company sells the resulting renewable electricity to industrial users via direct Power Purchase Agreements (PPAs) to displace fossil-fuel power and enable industrial decarbonization.
Product overview
Cerulean Winds is a green energy infrastructure developer operating as originator, developer, and producer that brings floating offshore wind projects from inception through to delivering green energy directly to industrial end users. The company's product portfolio comprises three floating offshore wind farm projects—Aspen (1GW, operational 2030), Beech (mid-2030s), and Cedar (early 2030s)—integrated through the North Sea Renewables Grid (NSRG), a basin-wide HVAC transmission system that connects the wind farms to oil and gas platforms for electrification and to the UK national grid for power export.
Differentiator
Problem solved
Functional benefit
Products and services
- Aspen Floating Offshore Wind Farm A 1 GW floating offshore wind project in the Central North Sea intended to deliver firm renewable electricity to industrial users and the National Grid, displacing fossil-fuel power.
- Beech Floating Offshore Wind Farm Floating offshore wind development in the company's wider portfolio, part of a combined pipeline exceeding 3 GW.
- Cedar Floating Offshore Wind Farm Floating offshore wind development in the company's wider portfolio, part of a combined pipeline exceeding 3 GW.
- North Sea Renewables Grid (NSRG) Bespoke subsea transmission network using dynamic HVAC cables to link multiple Cerulean floating offshore wind sites to onshore industrial demand centres.
Quantifiable outcome
- 1GW renewable power generation from Aspen project
- +5 more outcomes
Companies that use Cerulean Winds
Customer profileNamed customers2 records
Segments3 records
Ideal customer profiles1 record
Cerulean Winds technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Cerulean Winds partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and flagship.
- NOVcoreNOV serves as a delivery partner in the Aspen floating wind consortium bringing technical expertise in delivering large-scale offshore projects. NOV is part of the alliance working together to achieve design efficiencies and project delivery.
- Siemens EnergycoreSiemens Energy is a Tier 1 delivery partner in the consortium providing technical expertise for the Aspen floating offshore wind project, contributing to the development of one of the world's largest offshore wind farms.
- Ocean InstallercoreOcean Installer provides marine construction and operations services including mooring system installation, inter-array cables, marshalling of floating units, tow-out and hook-up. Critical for driving down installation costs and making FLOW Levelized Cost of Energy competitive with fixed offshore wind.
- HaventuscoreHaventus owns the Ardersier Energy Transition Facility near Inverness, Scotland - selected as the strategic hub and primary deployment port for Cerulean Winds' Aspen project. This will be Scotland's largest offshore wind facility on the North Sea coast and the UK's first dedicated assembly, delivery and operations centre for floating offshore wind. Secured £400million funding including £100million from UK National Wealth Fund and Scottish National Investment Bank.
- BilfingercoreBilfinger serves as Operations and Maintenance (O&M) partner for the Aspen, Beech and Cedar floating offshore wind farms. Brings decades of offshore energy sector experience and deep knowledge of development planning. Contributing to North Sea transition by redeploying skilled workforce from oil and gas to floating wind.
- Frontier Power InternationalcoreCo-bidder with Cerulean Winds for three INTOG floating wind sites (Aspen, Beech, Cedar) awarded by Crown Estate Scotland. Humza Malik serves as co-founder and CEO of Frontier Power and is a board member of Cerulean.
- Ping PetroleumflagshipPartnership to create one of the UK's first offshore oil and gas facilities powered by floating offshore wind at the Avalon site in the Central North Sea. Will deliver UK's first Floating Offshore Wind unit manufacturing and assembly in UK. Removes up to 20,000 metric tonnes CO2 annually. £80-100 million investment in UK renewable energy supply chain.
- ArupcoreArup serves as Owners Engineer for the Aspen project, providing technical oversight and expertise in large-scale offshore development delivery.
Scale indicators17 records
Recent moves6 records
Expansion highlights7 records
Cerulean Winds competitors and assessment
Company assessmentOthers
- Aker Solutions: Norwegian offshore engineering firm with deep subsea and floating wind substructure expertise, active in several FLOW consortia. Adjacent peer supplying substructure technology into the same floating wind value chain rather than competing as a project developer.
- Saipem: Italian offshore engineering and construction firm with growing floating offshore wind capabilities (e.g., installations for Equinor's Hywind). Adjacent peer providing EPCI services into the FLOW market that Cerulean depends on, rather than competing as a developer.
Emerging players
- Masdar: Abu Dhabi clean energy company with investments in floating offshore wind (e.g., co-investment in UK FLOW projects). Comparable as an emerging player building a FLOW portfolio with similar focus on green hydrogen and industrial decarbonisation adjacencies.
Direct peers
- Ocean Winds: Offshore wind joint venture of EDP and Engie, developing both fixed-bottom and floating offshore wind projects globally. Comparable as a developer-operator in the same offshore wind category, with broader geographic reach and an operating-asset base Cerulean does not yet have.
- Equinor: Norwegian energy major and pioneer of floating offshore wind with the operational Hywind Scotland and Hywind Tampen projects. Directly comparable as a FLOW developer-operator with North Sea focus and oil and gas heritage, though materially larger and at a more advanced operational stage.
- Simply Blue Energy: Irish-origin floating offshore wind developer with a project portfolio across UK, US, Ireland and Portugal. Closely comparable to Cerulean as a pre-revenue, project-development-stage FLOW developer focused on industrial decarbonisation and targeting oil and gas electrification opportunities.
- Principle Power: US/Portuguese floating offshore wind technology company behind the WindFloat platform. Directly comparable as a floating offshore wind developer/technologist targeting deepwater deployment, with a similar early-to-mid stage profile and Tier 1 partner consortium model.
Broad incumbents
- Ørsted: World's largest offshore wind developer with a primarily fixed-bottom portfolio (Hornsea, Dogger Bank) and growing floating wind interests. Comparable as the category-leading incumbent in offshore wind but with a much broader portfolio and operating-asset base than Cerulean.
- EDF Renewables: Renewables arm of EDF Group with offshore wind projects in France, UK and elsewhere, including floating wind exposure via the Windfloat Atlantic consortium. Comparable broad incumbent in offshore wind development with established operations and balance sheet.
- Iberdrola: Global renewables major (via Avangrid and Iberdrola Energía Marina) developing offshore wind including floating wind projects such as the Windfloat Atlantic. Comparable broad incumbent with overlapping FLOW ambitions but diversified across geographies and technologies.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Cerulean Winds social profiles
Digital presenceCerulean Winds financial estimates
Financial estimateRevenue estimate
Valuation estimate
Cerulean Winds leadership team
Management profileNumber of profiles
Profiles8 records
Cerulean Winds funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Cerulean Winds 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 Cerulean Winds
What does Cerulean Winds do?
Cerulean Winds is a privately funded UK developer of large-scale floating offshore wind farms — Aspen, Beech, and Cedar — built on its proprietary semi-submersible Tri-Floater platform and connected to shore via the bespoke North Sea Renewables Grid (NSRG) HVAC subsea transmission system. The company sells the resulting renewable electricity to industrial users via direct Power Purchase Agreements (PPAs) to displace fossil-fuel power and enable industrial decarbonization.
Is Cerulean Winds a public or private company?
Cerulean Winds is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Cerulean Winds founded?
Cerulean Winds was founded in 2020. It employs 1 to 10 people.
Where is Cerulean Winds based?
Cerulean Winds is headquartered in London, United Kingdom, in the Europe region.
How does Cerulean Winds make money?
Three revenue lines are on record. Power Purchase Agreements (PPAs) is the primary driver. The others are grid Export and HVDC Export Network.
Who are Cerulean Winds's main competitors?
Others on record are Aker Solutions and Saipem. Masdar is listed as an emerging player. Direct peers are Ocean Winds, Equinor, Simply Blue Energy and Principle Power. Broad incumbents are Ørsted, EDF Renewables and Iberdrola.
Does Cerulean Winds have an API?
No public API is recorded for Cerulean Winds.
What industry is Cerulean Winds in?
Cerulean Winds's product category is Floating Offshore Wind Energy. Its primary akta.pro industry code is EUACAFAC, Offshore Wind Power Generation (Floating), with a secondary code of EUAMACAE, Offshore Wind Substructures & Marine Engineering (Monopiles, Jackets, Floating). Its NAICS code is 221115 and its SIC code is 4911.