What is the price of home battery backup?
Household battery storage is an excellent way to increase efficiency and reliability of your solar panel system or protect your critical loads during power outages. However, the cost of installing a household battery back-up, such as the Tesla Powerwall, is quite high, leading many Ontarians to wonder if it is worth the price. In this article, we’ll break down the average home battery cost in Ontario and help you determine the best option for you:
- The average cost of installing a home battery storage system is between $12,000 and $20,000 (depending on the brand, capacity, complexity of the install)
- Homeowners can save up to $5,000 on the cost of home battery storage through the Home Renovation Saving Program
- Most installations are site specific. The best way to get an accurate estimate is to contact us for a free quote and a site assessment.
Average home battery cost in Ontario in 2025
Prices for home energy storage systems can range from $12,000 to $20,000. The battery alone will cost a minimum of $8,000, but once you factor in labor, permitting, and the balance of components, the total cost may increase by an additional $4,000 to $12,000. Complex installations can cost even more if you need to upgrade your main electrical panel or fix wiring issues. See the chart below for the cost of different home batteries in Ontario.
Providing hard figures is tricky because home battery installations are often site specific. There are a lot factors that can impact the total cost of installing home battery storage:
- The battery type, make and model.
- Battery bank size (the larger the capacity, the lower the cost per kWh)
- Complexity of installation and advanced features
- System components (inverters, charge controllers, backup interface*, etc.)
- Battery energy storage incentives and grants in Ontario
* Backup interface enables full or partial home backup when the grid is down.
* Inverter converts AC power into DC required to charge your battery (unless you already have a hybrid inverter installed with your solar panels).
* Charge controller monitors the rate & level of charge and discharge of the battery
To get the most accurate estimate, please contact us to conduct a site assessment and receive a free no obligation quote.
Top brands of solar batteries in Ontario
Luckily, there are already a few great products already available in Ontario. You can use the table below to get an idea of what some of the top home battery storage systems will cost. All of these batteries are scalable, allowing you to increase the battery bank size as needed. As capacity increases, the cost per kWh decreases, making larger batteries more cost-effective over time.
| Model | Min capacity (kWh) | Cost per KwH | Total Starting Price |
| Tesla Powerwall 3.0 | 13.5 kWh | $1,466 CAD | $19,794 CAD |
| LG Chem’s RESU | 9.8 kWh | $906 CAD | $8,880 CAD |
| Enphase IQ 5P | 5.0 kWh | $872 CAD | $4,364 CAD |
| Generac PWRcell | 9 kWh | $1,666CAD | $15,000 CAD |
| Solar Edge Home Battery | 10 kWh | $1,775 CAD | $17,759 CAD |
Consult with a local solar installer to determine which battery is best for you. They can tell you which product has the features you need and best fits your budget.
How solar batteries work
Solar battery banks are usually integrated with solar panels, EV charger, and smart devices. This setup allows homeowners monitor and manage their solar production, consumption and backup power through a single app. Also, such systems are typically more efficient, because the home batteries get connected directly to the DC side of a solar photovoltaic system, rather than AC side.
In a DC-coupled systems, solar panels, battery storage, and charge controller all operate using DC electricity before being converted to AC to be used for different loads in the house. When electricity is needed for home loads or appliances, the stored DC power is converted to AC through the inverter.
Save big with the Home Renovation Savings Program
The Ontario government is launching new energy efficiency programs to help homeowners save money. The $10.9 billion budget is the biggest in Canadian history.
Through the Home Renovation Savings Program, homeowners can save 30% — or up to $5,000 — on the cost of home battery storage. Here is a breakdown of the different rebates available:
- up to $5,000 for rooftop solar panels
- up to $5,000 for battery storage systems
- $600 for a home energy assessment
- $100 per new window and door
- up to $8,900 for insulation
- up to $250 for air sealing
- $75 for a smart thermostat
- $500 for a heat pump water heater
- up to $7,500 for a cold climate air source heat pump
- up to $12,000 for a ground source heat pump
The Home Renovation Savings Program will take effect on Jan 28, 2025. Contact Ontario Solar Installers to learn more about your available tax incentives and schedule a free consultation.
