The wind farm, which is located in the English North Sea, is currently under development. It will be co-owned by Dong, Marubeni and the GIB with the latter two committing £500 million to the project's construction.
Additionally, the project's risk will also be shared equally between the three owners. Dong's policy in recent years is to bring in minority shareholders for its offshore projects to share the risks while allowing the Danish utility full control.
Last month, the first foundation was installed at the project. The project's 6MW Siemens turbine are set for delivery in the summer, with the project expected to be commissioned in the first half of 2015.
In a statement, Dong executive vice president Samuel Leupold said: "The agreement with Marubeni and UK Green Investment Bank is a major step for DONG Energy’s partnership model. We have been able to enter into a shared construction risk partnership and at the same time we have locked-in significant value creation from the transaction.