Ansaldo Energia S.p.A. is an Italian power engineering company. It is based in Genoa, Italy. The absorbed parent company, Gio. Ansaldo & C., started in 1853. It was taken over by Leonardo Spa. In 2011, Leonardo S.p.A. sold 45% stake in Ansaldo Energia to First Reserve Corporation. In 2013, the Fondo Strategico Italiano acquired an 85% share of the company. It then sold a 40% share to Shanghai Electric Corporation.