Written by What You’ll Need for Your Solar Power System. (2025 Edition)
Whole House or Scalability
Whether you’re a DIYer or prefer to hire a professional, this guide will walk you through the essentials for a residential solar power installation that powers your whole house.
And, if you’re like me and can’t float the price of a full project, one thing solar power has in spades is scalability.
Installing a solar power system in Canada in 2025 is more accessible and cost-effective than ever. Whether the aim is a grid-tied setup or going fully off-grid, here are the essential components, their functions, and current cost estimates.
1. Solar Panels
Function: Capture sunlight and convert it into direct current (DC) electricity.
Cost: Residential solar panels in Canada average between $2.50 and $3.50 per watt. For a typical 5 kw system, expect to pay $12,500 to $17,500 before installation.
Further Reading: How Much Do Solar Panels Cost in Canada?
2. Inverter
Function: Converts DC electricity from the panels into alternating current (AC) for home use.
Cost: Hybrid inverters. They’re suitable for grid-tied or off-grid systems and range from $15,000 to $3,000
Further Reading: Solar Power Inverters
3. Battery Storage (Optional for Grid-Tied; Essential for Off-Grid)
Function: Stores excess energy for use during nighttime or power outages.
Cost: Lithium-ion battery systems range from $10,000 to $20,000, depending on capacity and brand .
Further Reading: Home Battery Storage 101: Everything You Need to Know in 2025
4. Charge Controller
Function: Regulates the voltage and current from the solar panels to the batteries, preventing overcharging.
Cost: High-quality charge controllers range from $1,800 to $2,500.
5. Mounting Hardware
Function: Secures solar panels to rooftops or ground mounts.
Cost: Mounting systems can cost between $500 and $3,000, depending on the type and complexity of the installation.
6. Monitoring System
Function: Allows real-time tracking of your system’s performance.
Cost: Systems range from $750 to $1,200.
7. Installation and Wiring
Function: Professional setup ensures safety and optimal performance.
Cost: Installation costs vary based on system size and complexity, typically from $4,000 to $6,000.
Total Estimated Costs
Grid-Tied System (5 kw): Approximately $17,500 to $25,000, including installation.
Off-Grid System (4–7 kw): Approximately $20,000 to $35,000, including battery storage and installation.
Additional Considerations
Permits and Inspections: Costs vary by municipality; always check local regulations.
Incentives: Federal and provincial programs may offer rebates or tax credits.
Further Reading: Getting Started with Solar Power: A Primer