Athena Investments A/S develops, constructs, and operates renewable energy projects primarily in Italy and Spain. The company focuses on the wind and solar power technologies. As of December 31, 2018, it had a total gross installed capacity amounted to 263 MW, which included 222 MW of wind farms and 41 MW of solar plants. The company was formerly known as Greentech Energy Systems A/S and changed its name to Athena Investments A/S in December 2017. The company was founded in 1924 and is based in Copenhagen, Denmark. Athena Investments A/S is a subsidiary of GWM Renewable Energy II S.r.l.