UQM Technologies Achieves Increased Performance Of Its Permanent Magnet Electric Motor And Generator Systems Through New Method of Control

New Method of Control Improves Continuous and Peak Power Output, Efficiency And Durability of UQM(R) Permanent Magnet Power Systems

FREDERICK, Colo., Sept. 23 -- UQM TECHNOLOGIES, INC. (AMEX:UQM) , a developer of alternative energy technologies, announced today that it has achieved increased performance of its permanent magnet motor and generator systems through a new method of control. The performance enhancements include increased peak power output of 33 percent, continuous power output of 10 percent, system efficiency improvements ranging from two to eight percentage points and greater system durability.

The new method of control incorporates sophisticated techniques that extract power from substantially the entire electrical cycle of the motor, which in-turn results in maximized power output and efficiency. Other motor control methods typically use the power from a portion of the electrical cycle, resulting in less than maximized power output and efficiency. In addition, enhanced user configurable functionality and increased data transmission and processing speeds allow for improved system feedback, prognostics and diagnostics, all of which enhance the durability and functionality of the system.

The new method of control is also expected to accelerate the application of the Company's breakthrough invention which enables UQM(R) power systems to deliver a 10 to 1 constant power speed ratio. The constant power speed ratio represents the ratio of the top speed of a motor to base speed and represents the ability of a motor to deliver both high torque and high speed capability. Many electric motor applications require high torque capability for starting and low speed operations, but must also achieve high speed. This is particularly the case for battery electric, hybrid electric and fuel cell electric vehicle propulsion. For the military, high torque at low speed translates into obstacle and grade climbing capability, while high speed enables pursuit, dash and evasive maneuvers and the ability to achieve on-road convoy speeds.

"Our engineering and scientific staff have once again advanced the performance capability of our industry leading permanent magnet motor and generator systems", said William G. Rankin, President and Chief Executive Officer of UQM Technologies, Inc. "These performance enhancements not only improve the power density of our systems, but also improve their energy efficiency, durability and functionality using conventional low-cost materials and components. These advances further differentiate our systems from our competitors for the broad range of demanding applications where packaging, power density and efficiency are critically important to achieving required performance."

UQM Technologies, Inc. is a developer and manufacturer of power dense, high efficiency electric motors, generators and power electronic controllers for the automotive, aerospace, telecommunications, medical, military and industrial markets. A major emphasis of the Company is developing products for the alternative energy technologies sector including power systems for electric, hybrid electric and fuel cell electric vehicles, 42-volt under-the- hood power accessories and other vehicle auxiliaries and distributed power generation applications. The Company's headquarters, engineering and product development center and motor manufacturing operation are located in Frederick, Colorado. Its electronic products manufacturing facility is located in St. Charles, Missouri. For more information on the Company, please visit its worldwide website at www.uqm.com.

This press release contains statements that constitute "forward-looking statements" within the meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act. These statements appear in a number of places in this press release and include statements regarding our plans, beliefs or current expectations, including those plans, beliefs and expectations of our officers and directors with respect to, among other things, the development of markets for our products. Important risk factors that could cause actual results to differ from those contained in the forward- looking statements include our ability to be profitable, our ability to obtain additional financing, our reliance on major customers and suppliers, our ability to commercialize our products, our ability to manage growth and the possibility that product liability insurance may become unavailable to us.