Exhibit 99.1

                  Capstone Turbine Announces Change in Year-End

    CHATSWORTH, Calif.--(BUSINESS WIRE)--Dec. 15, 2003--Capstone
Turbine Corporation (www.microturbine.com) (Nasdaq:CPST) announced
today that its year-end is being changed from December 31 to March 31.
    "We believe having our Company's year-end in March will allow us
to better balance work loads for our employees and permit us to more
efficiently focus our resources on key business priorities each
quarter throughout the year," said Karen Clark, Capstone's Chief
Financial Officer. "As required, Capstone will continue to report its
results each quarter, but in the future, full year results will be
presented based on a March 31 year-end."

    About Capstone Turbine

    Capstone Turbine Corporation (www.microturbine.com) (Nasdaq:CPST)
is the world's leading producer of low-emission microturbine systems.
In 1998, Capstone was the first to offer commercial energy products
utilizing microturbine technology, the result of more than ten years
of focused research. Capstone Turbine has sold and shipped more than
2,500 Capstone MicroTurbine systems to customers worldwide. These
award-winning systems have logged more than 5 million hours of
documented operation.
    "Capstone Turbine Corp" is a registered trademark of Capstone
Turbine Corporation.


    CONTACT: Capstone Turbine Corporation
             Keith Field, 818-734-5465 (General Media)
             Alice Barsoomian, 818-734-5428
             (Investors/Investment Media)