Bill Brooks, PE, is Principal of Brooks Engineering and has over 35 years of experience designing, installing, and evaluating grid-connected PV systems. He has written numerous technical manuals and articles for the PV industry that are widely used throughout the United States and beyond. He has trained over 17,000 contractors and code officials over the past 35 years Mr. Brooks is an active participant on many national and international codes and standards panels including UL1703 (PV Modules), UL1741 (Inverters), UL2703 (Mounting Systems), and UL9540 (Energy Storage Systems) Technical Committees. He is an active member of Code Making Panel 4 of the National Electrical Code (NEC).