A joint venture between Dutch pension fund PGGM and renewable energy investor Ampere Equity Fund, OPW completed the acquisition from DONG in December 2010.
A consortium of five banks, including the UK Green Investment Bank, provided the financing for the project through a senior debt financing of £224m.
The fully commissioned Walney I and Walney II offshore wind farm projects, comprising 51 Siemens 3.6MW wind turbines, are situated 14 km off the North West Coast of England.
Walney I and II wind farms have been fully operational since July 2011 and June 2012 respectively.
DONG Energy asset manager Mads Anderson remarked that achieving financial closure in the present economic climate reinforces the strength of these long term and stable assets to financial investors.
"We are delighted that Walney was the first offshore wind project to benefit from the support of the UK Green Investment Bank.
"Walney wind farm was the first project in the UK to be backed by institutional investors before it was built," Anderson added.
UK Green Investment Bank CEO Shaun Kinsgbury said that the offshore wind sector is a priority for the bank.
