GREEN RANKING FOR 2009
Ranking: 49
Worth: £648m
Green investment: Wind Turbines

Indian tycoon Tulsi Tanti used to run his own textiles business. In 1994 it was thrown into crisis by soaring power costs. He was able to commission two windmills to supply electricity to his plant in Gujarat. This led to the creation of the Pune-based Suzlon Energy which sold its first wind turbine in 1995. Six years later, the textile business had been hived off and Tanti, along with his three siblings, plunged into wind-turbine generation. With factories on four continents, Suzlon is the fifth-largest wind-turbine maker in the world but collapsing values have hit him hard. Last March Forbes valued Tanti at £2 billion but in a study of the biggest losers from the downturn at the end of the year, he was valued at £648m.