ZBB Energy Corporation Awarded by Frost & Sullivan for Excellence in Technology Innovation; Recognition Received for Cutting-Edge Expertise in Large Capacity Electricity Storage

Business Wire, May 8, 2006

MILWAUKEE -- ZBB Energy Corporation has been recognized with the 2006 Frost & Sullivan Award for Technology Innovation of the Year in the large capacity electricity storage market.

ZBB receives this award for introducing an innovative zinc-bromine technology that offers a modular, environmental friendly, and cost-effective plug-and-play way to provide high volume reserve power during periods of peak electricity for utility, industry, and renewable energy applications.

"We are honored that Frost & Sullivan's Industry experts distinguish our patented technology as forward-looking and support us as we established a greater presence in the United States," commented Robert Parry, Chief Executive Officer of ZBB Energy.

"In comparison with most rechargeable batteries where repeated cycling causes deterioration of electrode material, ZBB's technology guarantees zero performance loss," highlights the Frost & Sullivan Research Analyst Miriam Nagel. "In fact, in the fully discharged state, the zinc-bromine battery can be left indefinitely."

Presently, ZBB Energy Corporation's intellectual property portfolio includes over 20 current patents, patent applications, copyrights, and other intellectual property. The Company has research and development offices in Western Australia and a state-of-the-art manufacturing plant in Milwaukee, Wisconsin. Currently, ZBB is working with Department of Energy and the State of California.

Frost & Sullivan Best Practices Awards recognize companies in a variety of regional and global markets for demonstrating outstanding achievement and superior performance in areas such as leadership, technological innovation, customer service, and strategic product development. This award is bestowed upon ZBB as a company that has carried out new research, which has resulted in innovations that are expected to bring significant contributions to the industry in terms of adoption, change, and competitive posture. This award recognizes the quality and depth of the company's research and development program as well as the vision and risk-taking that enabled it to undertake such an endeavor.

About ZBB Energy Corporation

ZBB Energy Corporation develops and manufactures distributed energy storage solutions based on the company's proprietary zinc-bromine rechargeable electrical energy storage technology. The unique, modular construction of the company's core 50 kWh product enables ZBB's battery to be sized and packaged as a fully customized, large format, energy storage system. This scaleable, mobile system is ideally suited for a number of large market applications.

About Frost & Sullivan

Frost & Sullivan, a global growth consulting company, has been partnering with clients to support the development of innovative strategies for more than 40 years. The company's industry expertise integrates growth consulting, growth partnership services, and corporate management training to identify and develop opportunities. Frost & Sullivan serves an extensive clientele that includes Global 1000 companies, emerging companies, and the investment community by providing comprehensive industry coverage that reflects a unique global perspective and combines ongoing analysis of markets, technologies, econometrics, and demographics. For more information, visit www.frost.com.