How much you get
The net-metering tradeoff
You can't take this rebate and also sign a net-metering agreement with your local utility. The rebate is for "load displacement" — using the power you generate yourself, not exporting surplus.
How to claim it
- Confirm eligibility via a quick form
- Select a contractor and get written pre-installation approval
- Installation is completed
- Contractor handles utility interconnection approval
- Rebate arrives after documentation is submitted
Solar installers in Cambridge
Real companies based in Cambridge, pulled from their current Google reviews. We're not paid to list anyone here.
See all Cambridge installers →
Common questions
Who actually pays out the Cambridge solar rebate?
The province does, through the Home Renovation Savings Program — up to $5,000 for solar at $1,000/kW, capped at 50% of project cost. GrandBridge Energy, the utility that replaced Cambridge and North Dumfries Hydro in 2024, has nothing to do with the rebate cheque, but it does control net metering credit rates if you'd rather export surplus power than take the upfront payment.
Is solar worth it in Cambridge?
Cambridge's five-year average (2020-2024) runs 3.90 peak sun hours a day — comfortably within the range where solar pencils out. Without a rebate, payback typically runs 10–15 years depending on system size and your local electricity rates.
Despite the name, it's GrandBridge Energy on your bill
Cambridge doesn't have its own municipal electric utility — GrandBridge Energy serves the wider Waterloo Region area, Cambridge included, a fact that trips up some homeowners searching for a "Cambridge Hydro" that doesn't exist. It doesn't affect your rebate amount, which is set the same way across Ontario, but it does mean net metering credit rates and carryover rules for exported solar power are GrandBridge Energy's call, so confirm current terms with them directly.
How Cambridge's sun hours stack up
2020-2024 data puts Cambridge at 3.90 peak sun hours and 14.02 MJ/m² of daily radiation — essentially tied with the rest of the Waterloo Region and only a hair below the province's sunniest spots. For a homeowner sizing a system, this is close enough to the regional norm that local installers won't need to adjust their standard output estimates for Cambridge specifically.
Where Cambridge homeowners can double-check the details
The city's Environment and Sustainability page tracks Cambridge's part of the broader Waterloo Region emissions-reduction push, and the region-wide effort behind it runs through the TransformWR initiative, a joint program across all the Waterloo Region municipalities. For the net metering paperwork itself, GrandBridge Energy's net metering page has the current forms and connection process.
Next steps
View all Cambridge rebate programs → or check the official Home Renovation Savings Program site → for the current source of truth.