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Since 31 December 2013, EHA Energie-Handels-Gesellschaft has been a wholly owned subsidiary of REWE Group.

EHA Energie-Handels-Gesellschaft mbH & Co. KG, is the expert in supplying energy to chain store companies in Germany and Austria. Customers are provided with an extensive package of energy services from a single source. These include procurement and supply of green electricity and gas, implementation of energy management control systems, and energy consulting, that not only result in sustainable reductions in consumption and costs, but also constitute climate protection in action. EHA has been a central energy service provider for REWE Group since 1998. In addition, its customers include several non-group parties.