ZBB Energy to Present at Upcoming Investor Conferences

MILWAUKEE, WI–(Marketwired – May 18, 2015) – ZBB Energy Corporation (NYSE MKT: ZBB), a leading developer of innovative energy management systems solutions serving the utility and commercial and industrial (C&I) building markets, today announced that its Chief Executive Officer, Eric Apfelbach, will present at four investor conferences in the coming weeks.