Ontario Grid Capacity Checker
Before you invest in solar, check if your local hydro feeder has room to connect it. Enter your details and we'll look up your feeder on the Ontario Energy Board's capacity map. It's free, takes about 10 seconds, and our Ontario team can follow up with options for your address.
Why grid capacity matters for solar
Every solar system that exports power to the grid connects through a local feeder, the distribution line serving your neighbourhood. Each feeder can only host so much generation before the utility requires upgrades. In parts of Ontario, popular feeders are already full, which can delay or block new net-metering connections.
In 2025 the Ontario Energy Board launched the Centralized Capacity Information Map (CCIM), which standardizes how every Ontario utility reports feeder-level hosting capacity. This checker reads that map for your address and translates it into a plain-language answer: can a typical home solar system (up to 10 kW) connect in your area today?
If your feeder is restricted, you still have options. Non-exporting battery configurations such as the Home Renovation Savings Program's load-displacement path don't export to the grid and face fewer capacity constraints. Capacity values are also refreshed at least quarterly, so a restricted feeder today may open up after utility upgrades.
Frequently asked questions
What does the Ontario grid capacity checker do?
Enter your address and the tool looks up your local electricity feeder on the Ontario Energy Board’s Centralized Capacity Information Map (CCIM). It shows whether your utility is reporting available connection capacity for home solar (up to 10 kW), larger net-metered systems, non-exporting battery systems, and new load like EV chargers.
Where does the capacity data come from?
All data comes from the OEB’s Centralized Capacity Information Map. Every licensed Ontario electricity distributor submits feeder-level capacity data under standardized OEB reporting requirements, refreshed at least every three months.
My feeder shows "restricted". Does that mean I can’t go solar?
Not necessarily. A restricted feeder means the utility is currently reporting 0 kW of available generation capacity, so a new connection may be delayed or need upgrades. Restrictions are re-evaluated as utilities upgrade equipment, and non-exporting battery configurations (like the HRSP load-displacement path) are often still possible. Talk to your installer about options.
Why does my address show no capacity data?
Utilities roll their data onto the OEB map in phases. If your feeder has no published data yet, it does not mean you cannot connect. Most residential solar systems under 10 kW connect without issues, and your installer confirms capacity with the utility during the connection application.
Is this an official connection approval?
No. The OEB map is a preliminary screening tool. Final approval always comes from your local distribution company through its connection application process (and a Connection Impact Assessment for larger systems). This checker helps you spot potential issues before you invest time in a project.