Dong Energy, E.ON and Masdar, a wholly owned subsidiary of the Mubadala, today announced that they will invest €2.2 billion ($3.375 billion) in building the first 630MW phase of the London Array offshore wind farm in the Thames Estuary.

Once complete, the scheme will be the the world’s largest, and the first 1GW, offshore wind farm.

The project will supply enough power for around 750,000 homes – or a quarter of Greater London homes - and displace the emission of 1.9 million tonnes of CO2 every year.

Dong Energy is one of the leading energy groups in Northern Europe. E.ON is one of the world’s leading power and gas companies and Masdar Initiative is Abu Dhabi’s multi-faceted investment in the development and commercialization of innovative technologies in renewable, alternative and sustainable energies as well as sustainable design.

Today’s announcement comes after the UK Government’s recent proposal to increase its support for offshore wind power. The partners are satisfied that the project is now financially viable and are now keen to push ahead with construction and to produce the first renewable power in 2012, said a statement.

Anders Eldrup, CEO of Dong Energy, said: “Following the 2 ROC announcement, and our subsequent decision to build the Walney projects, I'm thrilled that we today also have the final investment decision on the London Array project. The decision to build the London Array offshore wind farm is a very significant cornerstone in Dong Energy’s strategy to increase the proportion of electricity generated from renewable energy sources.  Dong Energy has built approximately half of all offshore wind farms in operation in the world today. Entering into the world’s largest offshore wind farm project further strengthens DONG Energy’s leading position in this field.”

E.ON CEO Dr Wulf Bernotat said: “I’m delighted that work can now get underway on the world’s largest offshore wind farm. The start of London Array will mark a key milestone in our roadmap as we continue with our ambitious strategy to take renewables to an industrial level. With this pioneering scheme, we see a significant increase in scale for offshore wind and also for E.ON as we aim to become the world’s largest offshore wind farm developer.

“Today’s announcement is proof that, if all interested parties work together, renewable power can be taken to its next level and so make a real difference to the fight against climate change,” he said.

Dr Sultan Al Jaber, CEO of Masdar, said: "The leadership of Abu Dhabi recognises the importance of global collaboration and engagement to deploy renewable energy on a large scale. The London Array represents Masdar’s strategic approach to renewable energy, whereby real partnerships are formed between government and the private sector. This project is a great achievement for the UK government, E.ON, Dong Energy and Masdar, which exemplifies our commitment to build cooperation to take renewable energy further down the path to widespread global adoption.”
Prime Minister Gordon Brown said: “The London Array is a flagship project in our drive to cut emissions by 80 per cent by 2050 and meet future energy needs. The UK is a world leader in offshore wind farms, creating jobs and prosperity for the economy.  That's why we have increased our support for this technology as we move towards a low carbon future.

"E.ON, DONG Energy and Masdar are to be congratulated for their work on the London Array."

Onshore work is now due to start in the summer, with offshore work due to start in early 2011.

The scheme will be built around 12 miles off the coasts of Kent and Essex. The wind farm will be installed on a 90 sq mile site and will be built in two phases. The consortium hopes the first phase of 630MW will be completed and generating in 2012. The first phase will consist of 175 turbines. The second phase will add enough capac