Enova Works with IC Corporation to Receive Major Hybrid School Bus Award

TORRANCE, Calif.--July 27, 2006--Enova Systems (OTCBB:ENOV) (AIM:ENV) (AIM:ENVS), a leading developer and manufacturer of electric, hybrid and fuel cell digital power management systems, confirmed today it will be supplying IC Corporation, a division of International Truck and Engine, the Hybrid Drive systems for a nationwide Hybrid School Bus initiative. The Project award, coordinated by Advanced Energy, a Raleigh, N.C. based nonprofit corporation, was announced Tuesday, July 25, by IC Corporation at the 13th Annual School Transportation News Expo in Reno, Nevada. As stated in a recent press release, Enova will supply their Post transmission Hybrid Drive System for nineteen (19) Plug-In Hybrid Electric School Buses across eleven (11) states. Please click here to read the full press release:

http://www.ic-corp.com/site_layout/news/newsdetail.asp?id=772

About IC Corporation

IC Corporation, the nation's largest integrated school bus manufacturer, is a wholly owned subsidiary of International Truck and Engine Corporation. International produces school bus chassis, mid-range diesel engines, medium trucks, heavy trucks, severe service vehicles, and is a provider of parts and service sold under the International brand. Both IC and International are subsidiaries of Navistar International Corporation . Additional information is available on their website at: www.ic-corp.com.

About Enova Systems, Inc.

Enova Systems is a leading supplier of efficient, environmentally friendly digital power components and systems products. The company's core competencies are focused on the development and commercialization of power management and conversion systems for mobile and stationary applications. Enova applies unique 'enabling technologies' in the areas of alternative energy propulsion systems for medium and heavy-duty vehicles as well as power conditioning and management systems for distributed generation systems. The company develops, designs and produces drive systems and related components for electric, hybrid-electric, and fuel cell powered vehicles. For further information, contact Enova Systems directly, or visit its Web site at www.enovasystems.com.

About Advanced Energy

Advanced Energy is a Raleigh-based nonprofit corporation that enables utility customers to improve returns on their energy investments. The corporation also strives to create environmental, economic and societal benefits through innovative and market-based approaches to energy. The Hybrid Electric School Bus Project represents a collaborative effort among many parties to improve the nation's air quality. The project has demonstrated that industry, government and non-profits can successfully work together to improve the environment and encourage the economy.