Enel SpA
Ormat Technologies Inc.
AltaRock Energy Inc.
Royal Dutch Shell Plc
Kenya Electricity Generating Company Limited
BESTEC GmbH
SA G?othermie Bouillante
Fuji Electric Co. Ltd.
Calpine Corporation
Energy Development Corporation
Mitsubishi Heavy Industries
Ltd
Toshiba Corporation
Ansaldo Energia S.p.A.
Siemens AG