Featuring 34 wind turbines, the £98m wind onshore power project has contributed £43.3m to the UK economy and supported 723 jobs during the constriction period.
UK Energy and Climate Change State Secretary Ed Davey said: "Onshore wind is the cheapest form of low carbon power we have. It powers millions of homes and provides thousands of green jobs for people across the UK.
"As a direct result of this development local projects are able to access the £8.5 million fund SSE has set up to support communities in North Lincolnshire over the next 25 years."
The project, which will have operational life of 25 years, was acquired by SSE’s renewable energy development division SSE Renewables from Renewable Energy Systems Group (RES) in 2011.
SSE Generation managing director Paul Smith said: "Today marks the culmination of SSE’s £98m construction project to build England’s largest ever onshore wind farm and its opening reflects SSE’s determination to provide the energy people need in a reliable and sustainable way, contributing significantly to the UK economy.
"Working in tandem with the local community is central to the success of Keadby, that’s why we’re investing £8.5m in local projects supporting everyone from toddlers to trainees over the next 25 years."
