What Home Renovation Savings pays for a home battery in Oakville
We re-read the program's solar page and its October 2025 requirements on October 3, 2026. Ontario's rebate is for a battery installed with new solar, not for adding one to an existing system.
Battery storage
Paid per kWh of installed capacity, capped at 50% of eligible costs, including the inverter if applicable and the controls.
Only with new solar
A battery is eligible only when paired with a new solar system and sized for it. A home that already has solar or storage is not eligible.
Solar and battery together
The solar rebate is up to $5,000 and the battery rebate up to $5,000, each capped at half its eligible cost.
No net metering
The system must be sized to offset the home's own use. A net metering agreement makes it ineligible.
Safety and approvals
The installer must be a licensed electrical contractor. The battery must meet the Ontario Electrical Safety Code and fire codes, carry CSA, cUL or UL approvals and have utility connection approval.
Timing
No purchase or install before written IESO pre-approval and utility approval. The project must finish within 12 months and be filed within 30 days of installation.
Canada’s new heat pump rebate is worth up to $10,000. Get an email the day it opens
Planning a heat pump too? This one is on top of the rebates above, and we’ll email you the day it opens.
- Up to $10,000
- if your household earns below the median income
- $2,000
- for other homeowners who qualify
Stack it with the Ontario rebate open today
Ottawa says you can combine them. Each program has its own rules. Amounts are the most you can get.
Applications open early 2027
Join the launch alert
- Launch-day email, with what to do first
- Who qualifies for the $10,000, once Ottawa says
- A short hello now, so you know it worked
Know someone with old heating? Send them this.
Only emails about this rebate. No spam, no sales calls. Unsubscribe anytime.
Read everything we know so far Official page: canada.ca
The requirements document gives no end date for this stream, so confirm on the program page before you sign. The IESO has no pre-qualified contractor list.
Oakville Hydro
Oakville Hydro approves the connection and signs the agreement. The post-installation file needs the agreement and the ESA certificate.
Housing
80% of households live in an eligible house type. About 19% live in homes built since 2011 and 11,005 are owner-occupied detached houses built before 1981.
Garages
Panels can go on a permanent detached garage on the same meter. The battery location, usually in a garage or basement, needs code compliance and a fire-code check.
Already have solar? Not eligible
The program pays for first-time installations only. A home that already has a solar or storage system is not eligible, so an owner who installed panels years ago cannot add a battery and claim this rebate. If you are planning solar and a battery, do them as one project under one pre-installation application.
The kWh arithmetic
The rebate is $300 per kWh, so a 10 kWh battery earns $3,000 and a battery of about 16.7 kWh reaches the $5,000 cap. The rebate is also limited to half the eligible cost, so if the battery costs $8,000 before HST the most you can receive is $4,000. Ask the Oakville installer to show the capacity in kWh and the pre-HST price on the quote.
Approvals and the order of events
The contractor submits the pre-installation application with a quote dated within 60 days. You cannot buy or install before written IESO pre-approval and utility approval. The utility's distributed energy resource approval covers the battery, and the post-installation file needs the connection agreement and the ESA certificate within 30 days of installation.
What counts as eligible cost
Eligible costs cover equipment, permits, approvals and labour, including the inverter if applicable and necessary controls. HST, financing, insurance, maintenance and spare parts are not eligible costs, and combined funding from other sources cannot exceed 100% of the cost.
Oakville's newer subdivisions
Newer Oakville subdivisions often have simple roof shapes that suit panels. In older neighbourhoods, tree cover and complex rooflines reduce usable area. The installer should show a roof layout with the panel count and DC capacity before the battery is sized.
How to claim in Oakville
- Confirm you own an eligible house type and plan solar and the battery as one project.
- Talk to Oakville Hydro about the distributed energy resource approval for the battery and the maximum size it allows.
- Choose a licensed electrical contractor and ask for one quote covering solar and battery, showing kW, kWh and pre-HST costs.
- Let the contractor file the pre-installation application and wait for written IESO pre-approval and utility approval before buying anything.
- After the install, check that the post-installation application is filed within 30 days with the ESA certificate and connection agreement.
Common questions
Who approves?
Oakville Hydro.
Can panels go on a garage?
Yes, if permanent and on the same meter.
Is solar required?
Yes.
What is the cap?
$5,000.
What to do next
See Oakville solar rebates, heat pump rebates and the Ontario rebate calculator.
By Sam Menard. Sources, last read October 3, 2026: Home Renovation Savings: solar and battery, Solar and Storage stream requirements (PDF), Save on Energy: Home Renovation Savings, Statistics Canada 2021 Census, table 98-10-0233-01. All Oakville rebates → Every Home Renovation Savings rebate →