Pattern Development, an affiliate of US yieldco Pattern Energy, has signed a 15-year agreement with two public agencies in California to deliver wind power from the planned 200MW Duran Mesa project in central New Mexico.

Pattern did not divulge financial terms of the transaction involving Silicon Valley Clean Energy (110MW) and Monterey Bay Community Power (90MW).

The developer anticipates that construction of Duran Mesa will begin in late 2019 and reach commercial operation in late 2020.