When the power goes out, the last thing you want is the roar, or the fumes, of a gas generator. That’s why thousands of Canadian homeowners are making the switch to solar backup generators: clean, silent, and ready whenever you need power most.

But does going solar actually save money? Let’s break down the real costs, performance, and reliability to find out which generator truly pays off in 2025.

What are the main differences between gas and solar generators?

Gas generators rely on internal combustion engines powered by gasoline or propane, while solar generators use photovoltaic energy stored in rechargeable lithium batteries.

Below is a quick comparison of how they perform side by side:

Solar generators offer silent, emission-free operation while gas generators offer raw power but require ventilation, fuel storage, and regular upkeep.

How much does each type cost to run?

When comparing a gas vs solar generator, upfront cost is only part of the equation. Long-term operating expenses tell the real story.

Gas Generators

• Cost: $600–$2,500 upfront
• Fuel: $1.50–$2.20 CAD/litre (avg. 2025 prices)
• Daily use: $15–$45 CAD/day depending on load
• Maintenance: $250-$700 CAD/year (oil, filters, spark plugs)

Annual cost (20 days use): $1,200 CAD

Annual cost (50 days use): $2,500-$3,200 CAD

Solar Generators

• Cost: $800–$2,800 upfront
• Fuel: Free (sunlight)
• Maintenance: Minimal (battery cycling + cleaning)

Total annual cost: Close to $0

Over a 5-year period, solar generators can save homeowners $6,000–$14,000 CAD in fuel and maintenance, especially in provinces with higher gas prices like BC and Ontario.

Which is better for emergencies and long-term use?

During Emergencies:

Gas Generators

• High wattage = more appliance support
• Only works as long as fuel is available
• Loud operation (not ideal during nighttime outages)

Solar Generators

• Lower wattage but ideal for critical devices (phones, lights, routers, medical equipment like CPAP machines)
• Works during fuel shortages (solar recharges daily)
• Quiet backup generator operation won't disturb sleeping family members

Long-Term Use:

Best solar generators win in longevity, quietness, and ease of setup. Gas generators typically last 5-10 years and degrade faster due to engine wear, often requiring major service or overhauls midway through their lifespan.

A quality portable solar generator can last 10-15 years with minimal maintenance

Are solar generators safer than gas?

Safety Comparison

Solar Generators

• Zero carbon monoxide
• No fuel or fumes
• Safe for indoor use
• Pet- and child-friendly

Gas Generators

• Must operate outdoors
• Risk of poisoning and fire
• Requires proper ventilation and handling

For most households, that’s not a small difference, it’s peace of mind.

Which Generator should you buy?

Go with a Gas Generator if:

• You need to power heavy appliances like well pumps or entire homes
• You don’t mind dealing with fuel, noise, and maintenance
• You have outdoor space for safe operation

Choose a Solar Generator if:

• You want quiet, safe, low-maintenance backup power
• You value portability, indoor use, and long-term savings
• You need dependable emergency backup power for electronics and medical devices

The Verdict:

For most homeowners, solar generators are the more sustainable and hassle-free choice in 2025. The ability to charge them with free sunlight, store energy, and use them safely indoors gives them an edge for both preparedness and everyday backup.

Ready to compare your options?

Browse SolarFlares’ premium solar generators and find the best fit for your backup needs.