The £644m ($1.06bn) deal will leave the Danish energy group and La Caisse both with a 25% share of the UK wind farm in the Thames Estuary.

La Caisse will join a group of investors made up of Dong, E.ON – which will become the biggest single shareholder with 30% – and Masdar with 20%.

The deal is expected to complete in the first half of this year.

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