Solar and DER interconnection packages, net metering applications, utility liaison, relay settings, and P.Eng sealed diagrams for Canadian utilities.

How long does interconnection take in Ontario?

Typical timeline is 6–16 weeks depending on the LDC, system size, and whether a power quality study is required. Hydro One can take longer for rural customers. Starting the application early (in parallel with installation) is strongly recommended.

Key Deliverables

• Interconnection application package (utility-specific format)
• P.Eng sealed single-line diagram (SLD)
• Protection relay settings and anti-islanding verification
• Transfer switch specifications and design
• Net metering application documentation

What is the 10 kW simplified process?

In Ontario, residential solar systems ≤10 kW can use a simplified interconnection process with reduced documentation requirements. Systems above 10 kW require a standard interconnection study. We handle both and can advise if a slightly smaller system size meaningfully improves your timeline.