The independent power producer Terra-Gen upgrades 20 Vestas V47 wind turbines which are installed in their Pacific Crest wind farm located in Tehachapi, California, with a control retrofit solution from Deif. Deif’s control retrofit solution extends the turbine lifetime and optimises the turbine performance in terms of variable speed concepts, extended cut-out and adaptive power setpoint.
With the company’s retrofit control solution for Vestas V47, the turbines can operate without the VRCC (Vestas Rotor Current Control) and at the same time run above 600 kW and as close to the rated power level as possible. For Terra-Gen the retrofit solution from DEIF means that they have no VRCC related costs such as spare parts, lost production due to downtime and derating and they aim to reach a 3-year ROI.