Many electrical companies, especially cooperatives, require interconnection agreements prior to installing solar or wind energy systems. These agreements are only necessary when solar or wind systems are interconnected to the utility grid. An interconnection agreement is simply a contract between the solar or wind system’s owner and their utility company. These agreements specify the terms and conditions of connecting an outside system to the utility grid. It’s best to involve the utility company as early as possible. Being as there are no national standards, each utility company has its own conditions. Some agreements require special meters, inspections throughout the installation, liability insurance, fees, etc. Earth, Wind, and Solar Systems can help you obtain and adhere to all the conditions of an interconnection agreement.