The acquisition, made through its fifth flagship fund, strengthens Copenhagen Infrastructure Partners’ UK energy infrastructure portfolio and supports delivery of the up to 1,080MW project off the Essex and Suffolk coast.
COPENHAGEN, Denmark, 13 October 2026 /PRNewswire/ — Copenhagen Infrastructure Partners (CIP), through its fifth flagship fund, Copenhagen Infrastructure V (CI V), has acquired the 25% share previously held by the Macquarie-led consortium in the Five Estuaries Offshore Wind Farm project. CIP joins EDF power solutions (33.33%), ESB (20.83%), and Sumitomo Corporation (20.83%) to take the project forward.
Five Estuaries Offshore Wind Farm is located approximately 40km off the north Essex and south Suffolk coast. The up to 1,080MW project received development consent in December 2025 following over four years of development. Once operational, it is expected to generate enough electricity to meet the equivalent needs of approximately one million average UK homes annually.
This updated partnership structure marks a significant milestone for the Five Estuaries project, bringing together a wealth of expertise in developing, financing, and operating large-scale offshore wind farms globally. CIP, which continues to expand its portfolio of UK energy infrastructure investments, will work closely with all project partners as a long-term investor in the project.
Kunal Patel, Partner at Copenhagen Infrastructure Partners, said: "Offshore wind offers the UK a golden opportunity to deploy clean, home-grown energy at scale, to lower and stabilise electricity bills, create highly skilled jobs as well as bolster energy security and deliver economic growth. CIP is delighted to be further expanding our UK investment portfolio through acquiring a stake in Five Estuaries Offshore Wind Farm, and we look forward to working with partners to deliver the project."
Matthieu Hue, CEO of EDF power solutions UK and Ireland, said: "We are delighted to join our partners in the Five Estuaries Offshore Wind Farm project. This project perfectly complements our existing portfolio in the UK and Ireland. We look forward to working closely with our partners and local stakeholders to bring the project online and support the UK’s energy independence and security."
Since the project received development consent, work has been ongoing to further the project design, start early procurement work, and continue engagement with landowners, communities, and other stakeholders.
Notes to Editors
For more information about the Five Estuaries project, please visit fiveestuaries.co.uk.
About CIP
Founded in 2012, Copenhagen Infrastructure Partners P/S (CIP) is a global fund manager and leading investor in energy infrastructure. CIP builds value that matters by developing and constructing critical infrastructure projects that shape the future of energy.
Through its funds, CIP invests in power generation (solar and wind), energy storage, transmission and distribution, advanced bioenergy, low-carbon fuels and carbon capture.
With 15 funds currently under management, CIP is trusted by over 200 of the world’s largest and most sophisticated institutions, having raised EUR ~43 billion to date. CIP has projects in more than 30 countries, with presence on the ground through a network of +2,300 professionals.
For more information, visit cip.com.
About EDF power solutions
EDF power solutions UK and Ireland (www.edf-re.uk) is a subsidiary of EDF Group, one of the world’s largest low carbon electricity companies, and our investment and innovation is reducing costs for consumers and bringing significant benefits for communities.
With our operating portfolio of 50 renewable energy sites including battery, onshore and offshore wind we are providing much needed affordable, low carbon electricity. We have an expanding portfolio of wind, battery and solar projects in planning, development and construction with plans to reach 10 GW by 2035.
About ESB
ESB was established in 1927 as a statutory body under the Electricity (Supply) Act, 1927. With a holding of 97.1%, ESB is majority owned by the Irish Government. The remaining 2.9% is held by the trustees of an Employee Share Ownership Plan. As a strong, diversified utility, ESB operates across the electricity market, from generation through transmission and distribution, to supply of customers in addition to using our networks to carry fibre for telecommunications.
Visit esb.ie to learn more about ESB.
About Sumitomo Corporation
Sumitomo Corporation (TYO: 8053) is an integrated trading and business investment company with a strong global network comprising offices in over 60 countries and regions. The Sumitomo Corporation Group consists of approximately 500 companies and 80,000 employees on a consolidated basis. The Group’s business activities are spread across the following ten groups: Steel, Automotive, Transportation & Construction Systems, Diverse Urban Development, Communication Services, Digital AI, Lifestyle Business, Mineral Resources, Chemicals Solutions and Energy Transformation Business. Sumitomo Corporation is committed to creating greater value for society under the corporate message of "Enriching lives and the world," based on Sumitomo’s business philosophy passed down for over 400 years.
Media Contact
E-mail: media@cip.com / Mobile: +45 2844 7756
Visit www.sumitomocorp.com/en/global to learn more.
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Source : Copenhagen Infrastructure Partners acquires 25% stake in Five Estuaries Offshore Wind Farm
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