METLEN has been appointed by EDF power solutions UK for the engineering, procurement and construction (EPC) contract for its 400MW Longfield solar farm, one of the largest solar projects in the UK. The appointment was announced on December 17, 2025, marking a significant milestone for both companies in the renewable energy sector.

The appointment comes at a key time for the project as procurement ramps up ahead of construction getting underway in early 2027, with the target of completion in 2030. The comprehensive scope of works awarded to METLEN includes design, site surveys, procurement and delivery of all materials, and the full civil, mechanical, electrical, testing and commissioning works required for the construction of the solar facility in line with National Grid Code Compliance and DCO requirements, excluding grid connection works.

Project Scale and Environmental Impact

In total, the Longfield solar farm is estimated to generate enough electricity to supply approximately 130,000 households, while helping to avoid an estimated 60,000 tonnes of CO2 emissions per year. Once operational, Longfield solar farm will support the UK's transition to renewables following the award of a Contract for Difference in auction round six.

The project represents EDF power solutions' first DCO project, demonstrating the company's expansion into large-scale renewable energy development. The solar farm will also help one of the country's largest energy consumers reduce their operational emissions, as the remaining electricity generated will be supplied to Transport for London under a Corporate Power Purchase Agreement signed in July this year.

Local Economic Opportunities

EDF power solutions and METLEN are both committed to maximising opportunities for businesses within the Essex region and plan to hold a local supply chain engagement day in the spring. This initiative aims to strengthen the future of the local economy through the creation of opportunities for local businesses.

The project builds on the work that EDF power solutions is already undertaking in the region to encourage more young people to take up a career in renewable energy. Destination Renewables, an education programme developed jointly by EDF power solutions, DP Energy, Pembrokeshire College, and Pembrokeshire Coastal Forum, has been in place at Colchester Institute since the start of the year and offers students opportunities to hear directly from those working in the clean energy industry.

Company Expertise and Track Record

METLEN, a global energy and industrial company with a strong international footprint and deep expertise in complex energy projects, is recognized as one of the most reliable developers in the UK. The company now has more than 95 renewable energy projects (solar and BESS) in the UK and Ireland completed or at various stages of execution or development. The total installed power of the solar parks stands at more than 2.3GW, while the energy capacity of the battery systems is over 1.3GWh.

METLEN has a proven record of executing solar projects in more than 30 countries, on all five continents, often in challenging environments, consistently meeting the highest technical, environmental, and delivery standards.

Matthew Boulton, Director of Solar, Storage and Private Wire at EDF power solutions UK, expressed enthusiasm about the partnership, stating: "We are delighted to partner with METLEN Energy & Metals on the Longfield solar farm project. This is a significant step forward in delivering our first DCO project. Together, we are not only building important new UK renewable energy generation but also strengthening the future of the local economy through the creation of opportunities for local businesses."

Nikos Papapetrou, Chief Executive Director Renewables & Energy Transition Platform, of METLEN commented on the agreement: "We are proud to partner with EDF power solutions on a project of this scale and strategic importance for the UK's energy transition. METLEN has a proven record of executing solar projects in more than 30 countries, on all five continents, often in challenging environments, consistently meeting the highest technical, environmental, and delivery standards."

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