Iberdrola Renewables will supply power to US-based We Energies from its Barton wind power project, under a new power purchase agreement (PPA).

Under the deal, We Energies will purchase 50MW of clean, renewable power from the global renewables giant.

The 160MW Barton wind farm in Iowa, Wisconsin, US, started operations in June 2009.

The project is designed to help Wisconsin move towards its target of sourcing 10% of its energy from renewable sources by 2015.