Innovation is in the air. With Siemens' proven Clean-Ramp™ technology, our combined cycle Flex-Plants™ deliver air emissions compliance while load following. Solar...wind. With the increase in renewable energy sources, supply is continually fluctuating, and power plants are ramping more than ever. The challenge? Maintaining low average emissions when your plant is frequently ramping. The solution? Siemens Flex-Plant with innovative Clean-Ramp technology. The most advanced technology of its kind, Clean-Ramp integrates the operation of the combined cycle to maintain low NOx and CO out of the stacks while ramping. So you can ramp more frequently and more quickly with less environmental impact. That's what we call " doing more with less. " siemens.com/energy CIRCLE 20 ON READER SERVICE CARDhttp://www.siemens.com/energy