Design, installation, operation, and maintenance of photovoltaic systems, solar systems, energy storage, self-consumption of electricity, energy-saving systems, wind power, hydropower, solar carports, solar pump systems, cleaning of energy systems, thermographic measurements of photovoltaics, tracking systems, electrical, automation, building technology, pellet heating systems, heat pumps, rainwater utilization, rainwater treatment, and water softening systems, provision of consulting services in the fields of power generation, renewable energies, and energy-saving and environmental technology, cleaning of energy systems, thermographic measurements of photovoltaic systems, trade in goods of all kinds as well as charging stations for cars and trucks. Can establish branches and subsidiaries domestically and abroad and invest in other companies domestically and abroad as well as conduct all business that is directly or indirectly related to its purpose, furthermore acquire, encumber, dispose of, and manage real estate domestically and abroad, also provide financing for its own or third-party account as well as provide guarantees and bonds for subsidiaries and third parties.