Capstone Turbine Corporation is the world's leading provider of micro-turbine based MicroCHP (combined heat and power) systems for clean, continuous, distributed-generation electricity. The MicroCHP unit is a compact turbine generator that delivers electricity on-site or close to the point where it is needed. Designed to operate on a variety of gaseous and liquid fuels, this form of distributed-generation technology first debuted in 1998. The micro turbine is designed to operate on demand or continuously for up to a year between recommended maintenance (filter cleaning/replacement). The generator is cooled by airflow into the gas turbine, thus eliminating the need for liquid cooling. It can make electricity from a variety of fuels-natural gas, kerosene, diesel oil, and even waste gases from landfills, sewage plants, and oilfields.