 He began to focus on the renewable energy industry in the U.S. and went on to launch the alternative energy investment business within the Special Situations Group with a principal focus on wind and solar energy.During Auerbach’s tenure in the Group, he invested over $1.5 billion of firm capital in wind energy, solar energy, and biofuel companies and established a track record of developing, closing, and funding unique structured financings.Auerbach led several of Goldman’s most successful renewable energy investments, including Horizon Wind Energy, SunEdison, and First Solar.