Energy supply, provision of related services, in particular production, procurement, distribution and sale of energy to energy supply companies and end consumers, promotion, construction and operation of decentralized facilities for the generation and use of energy stored in sunlight, water, wind and earth, as well as promotion, creation and use of facilities and methods for energy storage, promotion of rational and environmentally friendly production and operating procedures that avoid long-term disruption of the biosphere and enable an economically ecological circular economy in harmony with nature, education and factual information about the aforementioned energy production facilities in cooperation with interested parties and authorities; can acquire, exploit and sell copyrights, patents, licenses, trademarks and other intellectual property rights, establish branches and subsidiaries, participate in other companies, provide financing for its own or third-party account, and mediate guarantees and sureties for subsidiaries and third parties, as well as acquire, encumber, sell and manage real estate.