ZBB Energy Corp.: Ships ZBB EnerStore to luxury eco-resort in French Polynesia

Largest Shipment to Date Demonstrates Leadership in Microgrid Market

MILWAUKEE, WI–(Marketwired – April 30, 2013) – ZBB Energy Corporation (NYSE MKT: ZBB), a leading developer of intelligent, renewable energy power platforms and hybrid vehicle control systems, announced today it has shipped the previously announced order from Pacific Beachcomber to supply a 2,000 kWh ZBB EnerStore™ System, including 40 ZBB EnerStore™ modules, for the luxury eco-resort, The Brando project in French Polynesia.

ZBB Energy’s technology allows the resort to significantly minimize the amount of fuel consumed by utilizing generators for back-up purposes only when stored PV energy is not significant enough to meet overnight demand. In terms of storage size and dollar value, this project represents the largest island microgrid shipment to date for ZBB Energy.

The resort’s electrical supply will include a mix of renewable energy sources, including an 896 kW array of photovoltaic (PV) panels and generators that use sustainable biofuels made from locally sourced coconut oil. The resort will be fully self-sustaining and is expected to be the first LEED™ (Leadership in Energy and Environmental Design) Platinum certified destination resort in the world, as a new construction and in the campus category. Developed by the U.S. Green Building Council (USGBC), LEED™ consists of a suite of rating systems for the design, construction and operation of high-performance green buildings, homes and neighborhoods. The Council rates energy efficiency into four categories, including Certified, Silver, Gold, and Platinum. Platinum is the highest LEED™ certification. A video on the project can be viewed here: Tetiaroa Brando Resort Video. More can be read at: http://www.pacificbeachcomber.com and http://tetiaroa.pf/

“ZBB’s technology provides a simple and cost effective way to maximize the benefit of our photovoltaic power generation, while minimizing the need for generators and carbon emissions,” said Richard Bailey, President and CEO of Pacific Beachcomber, SC.

“We appreciate that Pacific Beachcomber chose ZBB’s products for this incredible groundbreaking eco-resort,” said Eric C. Apfelbach, President and CEO of ZBB Energy. “We continue to gain momentum in the commercialization of our technologies and our installed base continues to grow. In the past year, we have shipped multiple systems representing multiple MWh for various applications all over the globe.” According to the contract terms and ZBB’s revenue recognition policy, a portion of the revenues will be recognized during the Company’s third quarter of FY 2013, and the balance of the revenue will be recognized after commissioning. Commissioning is currently scheduled to be completed during the 1st quarter of FY 2014.

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, WI, USA with offices also located in Perth, Western Australia. For more information, visit: http://www.zbbenergy.com

About Pacific Beachcomber

With more than 25 years of experience in the French Polynesian tourism market, 650 hotel rooms and 211 cabins, Pacific Beachcomber, S.C. (http://www.pacificbeachcomber.com) is the country’s largest luxury hotel and cruise operator. In addition to luxury cruise ships the m/s Paul Gauguin and the m/v Tere Moana (http://www.pgcruises.com), Pacific Beachcomber operates six award-winning hotels (http://www.tahiti.intercontinental.com): InterContinental Tahiti Resort, InterContinental Bora Bora Le Moana Resort, InterContinental Bora Bora Resort & Thalasso Spa, InterContinental Moorea Resort and Spa, Maitai Bora Bora, Maitai Rangiroa, and manages the Maitai Lapita Huahine (http://www.hotelmaitai.com).

Safe Harbor Statement

Certain statements made in this press release contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities and Exchange Act of 1934, as amended that are intended to be covered by the “safe harbor” created by those sections. Forward-looking statements, which are based on certain assumptions and describe our future plans, strategies and expectations, can generally be identified by the use of forward-looking terms such as “believe,” “expect,” “may,” “will,” “should,” “could,” “seek,” “intend,” “plan,” “estimate,” “anticipate” or other comparable terms. Forward-looking statements in this press release may address the following subjects among others: statements regarding the sufficiency of our capital resources, expected operating losses, expected revenues, expected expenses and our expectations concerning our business strategy. Forward-looking statements involve inherent risks and uncertainties which could cause actual results to differ materially from those in the forward-looking statements, as a result of various factors including those risks and uncertainties described in the Risk Factors and in Management’s Discussion and Analysis of Financial Condition and Results of Operations sections of our most recently filed Annual Report on Form 10-K and our subsequently filed Quarterly Reports on Form 10-Q. We urge you to consider those risks and uncertainties in evaluating our forward-looking statements. We caution readers not to place undue reliance upon any such forward-looking statements, which speak only as of the date made. Except as otherwise required by the federal securities laws, we disclaim any obligation or undertaking to publicly release any updates or revisions to any forward-looking statement contained herein (or elsewhere) to reflect any change in our expectations with regard thereto or any change in events, conditions or circumstances on which any such statement is based.

Investor Relations Contact:

David Mossberg

Three Part Advisors, LLC