Siemens now generates more than 40 percent of its revenue with ecofriendly products. In fiscal 2011, the company's technologies cut CO2 emissions at customers by nearly 320 million tons. They are also saving customers big money. For example, a U.S. electric power utility expects the utilization of Siemens gas turbines – the most powerful and efficient in the world – to reduce its costs by some $1 billion (net) over the course of their entire lifecycle. Listed in the DJSI since the very beginning (1999), Siemens has now captured the No. 1 spot in its industry for the fifth year in a row.