Under the terms of the agreement, Gamesa will manufacture, erect and commission as well as provide long-term service and maintenance of the machines.
Being developed with an investment of £48m, the projects are expected to have a combined output of 92,000MWh, which will increase the company’s total wind power output to 183,000MWh per year.
The projects covered under the contract include 4MW French Farm, 4MW Rodbaston, 6MW Brackagh Quarry, 12MW Mynydd Portref and 12MW Hallburn Farm.
The investment is part of REG’s plan to operate 300MW renewable energy projects in the UK within the next three years.
REG CEO Andrew Whalley said: "REG is already a profitable, multi-divisional renewables company, and these five new projects will more than double our own-operated wind capacity in the UK to 72.7MW.
"Combined with our operational 26MW of bio-power projects, and the wind and solar assets we operate on behalf of third parties such as leading fund manager Blackrock, the total power generating capacity under our management will hit 150MW."
