Bill Brooks, PE, is Principal of Brooks Engineering and has over 32 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 15,000 contractors and code officials over the past 25 years. He was the lead technical advisor developing the IAEI PV Online Training for Code Officials (PVOT). His publications include the Expedited Permit Process for PV Systems, the Field Inspection Guidelines for PV Systems, and Understanding the CalFire Solar PV Installation Guidelines. He is an active participant on many national and international codes and standards panels.