Siemens Gamesa Wins Repowering Order for 430 MW Rolling Hills Wind Farm Updated On Wed, Jul 3rd, 2019 by Saurenergy Siemens Gamesa has been selected for the largest repowering order to date in North America, for the Rolling Hills wind power project. Siemens Gamesa has been selected by MidAmerican Energy Company for the Rolling Hills wind power project for a total of 429.3 MW, the largest repowering order to date in North America. The company […] Read more