R Energy 1 S.A engages in the investment and financing of energy and environmental projects; and other business activities in Greece and internationally. It is involved in the production, transmission, distribution, purchase, sale, and general exploitation; recycling activities; management natural resources, such as gas; renewable energy sources; and wastewater resources activities. The company engages in the supply, construction, installation, and operation of photovoltaic parks; and design, development, industrialization, marketing, supply, and installation of electricity. R Energy 1 S.A was founded in 2011 and is headquartered in Kifisia, Greece.