Larry Stapleton joins Optimum Energy as Vice President, Sales & Marketing from Ballard Power Systems, where he had overall revenue responsibility for fuel cell products and professional services and he was President of the U.S. based subsidiary, Ballard Fuel Cells Systems. Prior to Ballard Power, Stapleton led worldwide sales & marketing for the software firm, BSQUARE, where he focused his efforts on growing market share, developing international business channels and growing product and professional service revenue.