ZBB Energy Completes Field Qualification of Enhanced EnerStore "V3.3" 50kWh Flow Battery

MILWAUKEE, WI--(Marketwired - Jan 15, 2015) - ZBB Energy Corporation (NYSE MKT: ZBB), a leading developer of innovative energy management systems solutions serving the utility and commercial and industrial building markets, today announced the shipment and field qualification of the "V3.3" product upgrade package for the ZBB EnerStore® V3-series 50kWh zinc bromide flow battery. The upgrades include modifications that enhance system reliability, life cycle, energy output and efficiency performance of the product.

These modifications significantly expand ZBB's flow battery technology as a world leader. Reducing these modifications to practice in ZBB's installed base is a major step in building the Company's intellectual property portfolio and in achieving the Company's business strategy. The achievement of these modifications is also helpful for meeting milestone requirements in the current Lotte R&D Agreement. These modifications along with additional enhancements through our Lotte Collaboration are continuously expanding and strengthening ZBB's intellectual property portfolio.

"ZBB has leveraged a great deal of real world performance data across many applications in our installed base to drive the release of a package of improvements for the V3-series product family," said Brad Hansen, President and COO of ZBB Energy. "The improvements include several hardware and software elements that are fully installed and have been qualified at multiple sites throughout the ZBB installed base, as well as tested for performance over a number of months at ZBB and Meineng Energy, ZBB's China joint venture company. A new baseline energy storage process is also being incorporated in the V3.3 product that delivers improved efficiency and better performance across a variety of applications."

Upgrades to existing customer systems began in November in the U.S. and China, and initial full V3.3 system shipments from manufacturing in Milwaukee, Wisconsin and WuHu, China will be effective immediately.

About ZBB Energy Corporation
ZBB Energy Corporation (NYSE MKT: ZBB) is an applications solutions company providing advanced energy management systems critical to the transition from a "coal-centric economy" to one reliant on an enormous expansion in renewable energy. Whether part of the grid power transmission and distribution network, or behind the meter in commercial, industrial and multi-tenant buildings, ZBB Energy brings vital power control and energy storage solutions to the most pressing problems caused by the incorporation of increasingly pervasive renewable energy generating assets. ZBB Energy also provides energy management systems for off-grid applications such as island or remote power. ZBB is a global corporation, with a joint venture in AnHui, China at Meineng Energy, as well as a strategic partnership with Lotte Chemical in South Korea. For more information, visit: www.zbbenergy.com.