HomeServicesService AreasAboutContact

Battery Storage for Nova Scotia Homes

Lithium battery systems that keep the lights, the fridge, and the heat pump running through multi-day Atlantic storm outages. Sized for whole-home or critical-loads backup, paired with solar or standalone.

Nova Scotia home solar PV system paired with battery storage for storm backup
Why Battery Storage in NS

Storm Resilience and Solar Self-Consumption in One Box

Battery storage in Nova Scotia serves two distinct purposes that often pay off the system together. The first is storm backup. Atlantic weather routinely knocks out rural NS Power feeders for 12 hours to multiple days at a time. The second is solar self-consumption, storing your midday solar surplus to power your home in the evening rather than exporting it to the grid.

For most NS homeowners, the storm-resilience case alone is enough. After Hurricane Fiona and the storms that followed, the demand for whole-home battery backup across the province has more than doubled. A 10 kWh to 20 kWh battery system can run essential loads (refrigerator, freezer, internet, lighting, and heat pump on eco mode) for one to three days on its own, indefinitely when paired with solar that recharges it through the outage.

Battery Systems We Recommend

  • Tesla Powerwall 3: 13.5 kWh, 11.5 kW continuous, integrated solar inverter, whole-home backup capable. Most popular choice for new solar + storage installs.
  • Enphase IQ Battery 10 / 5P: Modular 5 or 10 kWh units, AC-coupled, works seamlessly with Enphase microinverter solar systems.
  • Franklin Home Power: 13.6 kWh, high cold-weather performance, popular for rural NS where temperatures swing widely.
  • Generac PWRcell: Modular 9 to 36 kWh, integrated transfer switch, generator-replacement style installs.

How Big a Battery Do You Need?

The honest answer depends on what you want to keep running and for how long. We help you think through this in three brackets:

5 kWh
$8K-$11K
Essentials, 8-12 hr
10 kWh
$13K-$17K
Critical loads, 1 day
20 kWh
$22K-$28K
Most of home, 2 days
30 kWh
$32K-$40K
Whole home, 3+ days

Pricing reflects all-in installed cost with 15% HST included, including integrated inverter, transfer switch, electrical work, and commissioning. With paired solar, the battery recharges during daylight and the duration of backup extends indefinitely as long as there is sun.

What Backup Power Actually Looks Like

Modern lithium batteries seamlessly take over within milliseconds of a grid outage. You will not notice the transition. Your lights stay on, your internet stays up, and your heat pump keeps running (on eco mode to extend battery life). The battery management system automatically prioritizes loads if power gets tight.

Compare this to a traditional generator: noisy, requires fuel deliveries during multi-day outages, demands manual startup, and pollutes locally. A battery does none of that. It runs silently, requires no fuel, and starts automatically.

Standalone vs Solar + Battery

A battery without solar still provides storm backup, but it draws charge from the grid. That works fine for outage resilience, but it does not lower your monthly NS Power bill the way solar does. For most NS homeowners moving forward in 2026, the financial case strongly favours bundling battery with new or existing solar.

Why Our Battery Advisory

What Makes Our Battery Recommendations Different

🏭

Load Modelling

We help map your critical loads in kWh so you do not oversize (wasted capital) or undersize (battery drains during a long outage).

Multi-Brand Comparisons

We are not locked into one manufacturer. Tesla, Enphase, Franklin, Generac, we recommend based on your home and use case.

Cold-Weather Aware

Lithium chemistry behaves differently at -20°C. We recommend systems engineered for Atlantic Canada conditions.

🛡

Manufacturer Warranties

10-year manufacturer warranties as standard. We help you understand what is and is not covered in the fine print.

Battery Storage FAQ

Common Questions From NS Homeowners

How long does a battery last during a power outage?
It depends on the battery size and what loads you are running. A 10 kWh battery powering essentials only (fridge, freezer, internet, lights, modest heat pump operation) typically lasts 18 to 36 hours. A 20 kWh battery doubles that. If paired with solar that recharges during daylight, runtime extends indefinitely as long as the sun comes back.
Do batteries work in cold weather?
Modern lithium iron phosphate (LiFePO4) batteries operate normally down to roughly -10°C. Most modern home batteries (Tesla, Franklin, Enphase) include internal heating systems for sub-zero temperatures. They are typically installed in a garage, basement, or insulated enclosure, which keeps them in their happy operating range year-round.
Can I add a battery to my existing solar system?
Usually yes. AC-coupled batteries like Enphase IQ and Franklin Home Power add to existing solar systems without replacing the inverter. DC-coupled solutions may require inverter replacement. We help you understand the retrofit options for your specific system before you commit.
Is a battery cheaper than a generator?
Upfront, a battery costs more than a propane or natural-gas generator of similar capacity. Over a 10-year horizon though, batteries usually come out ahead because they have no fuel cost, near-zero maintenance, and (when paired with solar) actually offset your daily electricity use. Plus, no fuel deliveries during a multi-day outage.
Does NS Power offer time-of-use rates that batteries can take advantage of?
As of May 2026, NS Power's residential Domestic Service Tariff is a flat rate, not time-of-use. So the arbitrage opportunity of charging the battery off-peak and discharging on-peak does not currently exist for residential customers. Battery value in NS comes from storm backup and solar self-consumption, not rate arbitrage. This could change if NS Power introduces residential TOU rates in future.

Get Your Battery Storage Estimate

Tell us about your home, your typical outages, and what loads you want backed up. We will model your options across multiple battery brands.

Or call directly: (902) 707-5253