Battery Storage

Battery Storage Systems

Pair solar with battery storage to keep power running through outages and shift your energy use to off-peak hours.

Rooftop solar array wired for battery backup
Rooftop solar array wired for battery backup

Why Add a Battery

A battery storage system banks the solar power your panels generate during the day for use after sunset or during a grid outage. For homes on time-of-use billing, it also lets you shift stored solar energy into peak pricing periods instead of drawing from the grid.

Sizing a Battery to Your Home

Battery capacity is chosen based on which circuits you want backed up (a full home versus essential loads like the fridge, furnace and a few outlets) and how much autonomy you want during an outage. We walk through both options during your design consultation.

Works With Existing Solar

If you already have a solar system, whether installed by us or another company, we can evaluate adding battery storage as a standalone upgrade.

Case Study

A Recent Installation, the Greater Toronto Area

Terawatt Solar installation project in the Greater Toronto Area, Ontario
System Size
9.6 kW
Est. Annual Savings
$1,450/yr
Install Time
2 Days
Warranty
25 Years

The Situation

A homeowner

Our Approach

Our design team modeled twelve months of utility usage and roof conditions before proposing a system sized to the property's needs.

The Outcome

The system was installed by our in-house crew within the proposed timeline and is performing in line with the original production estimate.

FAQ

Common Questions

How much does this service cost?
Pricing depends on system size, roof or site conditions and equipment selected. We provide a detailed, itemized quote after a free site assessment.
Do you handle permitting?
Yes, our team manages municipal permitting and utility interconnection paperwork as part of every project.
What warranty is included?
All installations include a 25-year equipment and workmanship warranty.
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Ready to Talk About Battery Storage Systems?

Book a free site assessment with our in-house design team.

Get a Free Quote
Or call us directly at (877) 648-3323