Siemens Gamesa demonstrates its multibrand service capabilities with milestone project in Poland First full-scope multibrand service contract signed in Europe for two wind farms in Poland with a total of 29 Vestas turbines Long-term service and maintenance contract secured for 58MW with Polenergia (WK-intern) - Siemens Gamesa Renewable Energy (SGRE) has secured its first full-scope contract for the service of turbines supplied by other Original Equipment Manufacturers (oOEM) in Poland with Polenergia. Starting in April 2019, SGRE will provide service and maintenance for the 34MW Lukaszow and 24MW Modlikowice wind farms in western Poland. The contract includes full-scope service including availability and component warranty for