Interconnection and Permission to Operate (PTO)
Seamless Interconnection and Permission to Operate

When you choose Sunlight Energy, you partner with a team dedicated to seamlessly navigating the interconnection process and securing Permission to Operate (PTO) for your solar system in California.
Interconnection Process
Sunlight Energy manages the entire interconnection process, adeptly handling the guidelines, rules, and regulations established by your local utility company. Our experienced interconnection team ensures a streamlined process, coordinating closely with your utility provider to integrate your solar system efficiently into the grid.
Understanding the intricacies of California’s electric grid, we meticulously plan the Point of Interconnection (POI) to align with utility requirements. Timely interconnection is vital; once PTO is granted, your solar system can commence generating clean energy. Post-PTO, we assist you in analyzing your utility bills to clearly understand your annual electricity savings.

Steps to Obtain Permission to Operate (PTO) in California
- Application Submission: We submit a comprehensive interconnection application to your utility, including detailed electrical diagrams, equipment specifications, and system design plans.
- Utility Review: The utility reviews the application to ensure compliance with safety and technical standards. This may involve an engineering assessment and, in some cases, a pre-installation site visit.
- System Installation: Upon application approval, your solar system is installed in accordance with local building codes and utility standards.
- Inspection and Approval: After installation, local authorities conduct inspections to verify code compliance. Following this, the utility may perform its own inspection.
- Meter Installation: The utility installs a bi-directional meter to monitor energy import and export, facilitating accurate net energy metering.
- Issuance of PTO: After all inspections and meter installations are complete, the utility issues PTO, authorizing you to activate your solar system.
Processing times for PTO in California can vary. Simple solar-only interconnection requests with complete and accurate documentation may receive PTO within 10 business days. More complex requests, such as those involving energy storage or non-standard metering, may require additional technical and engineering review, extending the timeline.
When you choose Sunlight Energy, you entrust your project to a knowledgeable partner committed to facilitating a smooth interconnection process and ensuring your solar investment delivers optimal returns.