UQM Technologies Integrated Electric Traction System Completes Performance Validation Testing at Argonne National Laboratory's Advanced Powertrain Test Facility

Independent Evaluation by the U.S. Department of Energy's Main Facility for Assessing Advanced and Hybrid Electric Vehicle Technologies Validates Power Delivery and Efficiency of the UQM(R) INTETS Propulsion System

FREDERICK, Colo., April 16 -- UQM Technologies, Inc. (AMEX:UQM) , a developer of alternative energy technologies, announced today that the U.S. Department of Energy's Argonne National Laboratory Advanced Powertrain Research Facility (APRF) has completed performance validation testing of the Company's Integrated Electric Traction System (INTETS), an advanced propulsion system for battery, hybrid, and fuel cell electric vehicles.

Independent testing at the APRF conducted on the 70kW version of INTETS validated the systems published performance specifications including a continuous power rating of 30 kW (41 hp), a peak power rating of 75 kW (100 hp) and peak torque delivery of 1,700 N-m (1254 lbf/ft). Also validated in the testing was peak efficiency for the complete system, which includes a brushless permanent magnet motor, inverter/controller and gearing, of 91%. Development funding for the system was provided by the U.S. Department of Energy.

The INTETS system is the electrical equivalent of a conventional powertrain consisting of an internal combustion engine, transmission and differential and offers unprecedented levels of compactness, performance and efficiency, both as a sole propulsion system for mid-size vehicles and as an axle drive system for larger vehicles. Its highly integrated design features a very small footprint to maximize power density, fuel economy and the space available for passengers and cargo and is ideally suited for application in next generation advanced technology vehicles.

Measuring just 391.2 mm (15.4 inches) in length and 289.6 mm (11.4-inches) diameter (excluding an optional electronic inverter/controller), INTETS incorporates internal epicyclic single-stage gearing, off-the-shelf internal differential components and parking pawl; resulting in a system that is very quiet, low cost and safe. An optional, fully integrated, intelligent inverter/controller can be programmed to meet a variety of vehicle configurations and incorporates the Controller Area Network (CAN) communications protocol for ease of use and integration by OEM customers.

"The size, performance and integrated functionality of the UQM(R) INTETS propulsion system made this ideal for packaging in the Emulated Fuel Cell Vehicle, a drive-by-wire experimental vehicle chassis, for testing on the programmable chassis dynamometer at the APRF. This allowed us to test INTETS in a variety of emulated vehicles ranging from small to mid-size cars and light-duty SUVs. The system performed as specified, delivering peak and continuous power sufficient to drive a mid-size passenger vehicle with impressive energy efficiency," said Keith Hardy, Section Leader for Vehicle Systems.

Argonne employs the Advanced Powertrain Research Facility and a unique integrated set of supporting tools to simulate, emulate and validate advanced automotive powertrain technology. This capability allows DOE to analyze candidate technologies, test and validate newly developed components and powertrains using Hardware-In-the-Loop (HIL) and/or Rapid Control Prototyping (RCP) techniques as well as test 2-wheel and 4-wheel drive vehicles using the latest equipment to measure fuel efficiency and SULEV emissions.

Argonne's modular testing environment allows for easy interchanging of components with vehicle emulation controlled by an Argonne designed computer system that simulates the behavior of a vehicle under any driving cycle. The dynamometer maps the energy flows through the individual vehicle components and through the powertrain system as a whole, and permits the addition of power to the system to simulate regenerative braking. This unique facility is the only one of its kind in North America outside the U.S. auto industry.

Commenting on the validation testing, William G. Rankin, UQM Technologies President and Chief Executive Officer said, "We're very excited to report the independent verification of our previously announced performance results for this highly integrated electric propulsion system. Argonne National Laboratory's Advanced Powertrain Research Facility possesses world-class testing facilities and scientific personnel and is uniquely qualified to validate the performance of this revolutionary propulsion system. We continue to believe that no other system can match INTETS in overall power density and product efficiency and we are continuing to discuss its potential application with vehicle OEMs worldwide."

UQM Technologies, Inc. is a developer and manufacturer of power dense, high efficiency electric motors, generators and power electronic inverters for the automotive, aerospace, medical, military and industrial markets. A major emphasis of the Company is developing products for the alternative energy technologies sector including power systems for battery hybrid 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 and the possibility that product liability insurance may become available to us.