ZBB Energy Announces Upcoming Investor Events MILWAUKEE,

MILWAUKEE, WI--(Marketwired - Apr 30, 2013) - ZBB Energy Corporation ( NYSE MKT : ZBB ), a leading developer of intelligent, renewable energy power platforms and hybrid vehicle control systems, announced today that President and Chief Executive Officer, Eric Apfelbach, will be presenting and meeting with investors during the following events:

Wednesday, May 15, 2013 Three Part Advisors' East Coast IDEAS Investor Conference Metro Meeting Center, Boston, MA 101 Federal Street, 4 ^th Floor Boston, MA 02110 Presentation Time: 10:20 AM EDT

The presentation will be webcast live and may be accessed at the conference website, www.IDEASConferences.com , or in the investor relations section of the company's website: http://www.zbbenergy.com .

The IDEAS investor conferences are annual independent venues allowing quality public companies to present their investment merits to an influential audience of investment professionals. IDEAS Investor Conferences are sponsored directly by money management firms for the benefit of regional investment communities. Conference sponsors collectively have more than $100 Billion in assets under management and include: Barrow Hanley Mewhinney & Straus, Eagle Asset Management, Keeley Asset Management, Granahan Investment Management, GRT Capital Partners, Hodges Capital Management, Luther King Capital Management, Marble Harbor Investment Counsel, Allianz Global Investors: NFJ Investment Group, RENN Capital, Great Lakes Advisors, Ironwood Investment Management, and Perritt Capital Management. The IDEAS Investor Conferences are held annually in Boston, Chicago and Dallas and are produced by Three Part Advisors, LLC. Additional information about the events can be located at www.IDEASconferences.com

Thursday, May 30, 2013 The Benchmark Company One-on-One Investor Conference Pfister Hotel 424 East Wisconsin Avenue Milwaukee, WI 53202 One-on-One and Small Group Meetings

The company will meet with investors throughout the day in a series of one-on-one and small group meetings. Investors interested in attending the conference should contact a representative of The Benchmark Company, LLC ( events@benchmarkcap.com ) to schedule a meeting. The event will not be webcast; however, slides will be available on the "Investor Relations" section of the ZBB Energy website at www.zbbenergy.com .

About ZBB Energy Corporation

ZBB Energy Corporation ( NYSE MKT : ZBB ) designs, develops, and manufactures advanced energy storage, power electronic systems, and engineered custom and semi-custom products targeted at the growing global need for distributed renewable energy, energy efficiency, power quality, and grid modernization. ZBB and its power electronics subsidiary, Tier Electronics, LLC, have developed a portfolio of integrated power management platforms that combine advanced power and energy controls plus energy storage to optimize renewable energy sources and conventional power inputs whether connected to the grid or not. Tier Electronics participates in the energy efficiency markets through their hybrid vehicle control systems, and power quality markets with their line of regulation solutions. Together, these platforms solve a wide range of electrical system challenges in global markets for utility, governmental, commercial, industrial and residential end customers. Founded in 1986, ZBB's platforms ensure optimal efficiencies today, while offering the flexibility to adapt and scale to future requirements. ZBB's corporate offices and production facilities are located in Menomonee Falls, Wisconsin, USA with offices also located in Perth, Western Australia. For more information, visit: www.zbbenergy.com .