This second edition book details how to operate and maintain residential, commercial, and utility solar photovoltaic systems that are connected to the utility grid. By following the guidelines in this book you will be able to operate and maintain solar power systems that should give many years of reliable operation. Invaluable trouble shooting advice will aid in returning your system to full operation in the event of a problem. This book is also incorporated into "Complete Solar Photovoltaics for Residential, Commercial, and Utility Systems"