Eolian specializes in energy investment. It works in energy projects, including the development of operating generating capacity. Its approach has led to the invention of the renewable energy royalty structure It is engaged in offering long-term financing for the development of solar and wind generating capacity, helping expand utilities, independent power producers, and the power market operators. It was formerly known as MAP RE/ES. It was founded in 2005 and is based in Burlingame, California.