When the grid goes down, having backup power brings peace of mind. But the old way—buying a gas or diesel generator—comes with more compromises than most people realize. Before you invest in a generator, here’s why thousands of Georgia residents are switching to solar + battery backup systems instead.
⚡ Backup Power: Generator vs. Battery
| Feature | Generator (Gas/Diesel) | Solar & Battery System |
|---|---|---|
| Cost (after tax credit) | $8,000–$15,000 + fuel costs | $18,000–$35,000+ (includes solar and batteries) |
| Fuel Requirement | Gas, diesel, propane, natural gas, etc (must be stored or connected to gas utility) | No fuel needed – recharges with sunlight |
| Noise | Extremely loud during operation | Silent |
| Maintenance | Annual tune-ups, oil changes | Once every ~5 years (clean solar panels and system checkup) |
| Life Expectancy | Warranty of 3–6 years typical | Warranty of 25 years typical |
| Runtime | Limited by fuel availability and age of system | Depends on battery capacity. Recharges daily with sun or grid |
| Emissions | CO₂, NOₓ, potential carbon monoxide | Zero emissions |
| Incentives | None | 30% Federal Tax Credit & state/local |
| Long-Term Value | Depreciates over time | Generates value (entirely pays for itself in most cases) |
| Function in Grid Outages | Only functions during grid failure | Covers both daily energy needs and provides backup power |
| Manual Setup Needed? | Manual or Auto options, both have a delayed startup | No – automatically transfers in milliseconds |
Understanding the Real Cost of Backup Power:
Even though generators cost less up front than solar, you end up paying more in the long run because of their shorter lifespan, fuel costs, and maintenance expenses. In comparison, solar + battery systems pay for themselves over time by reducing your electric bills and eliminating the need to buy fuel.
The Hidden Risks of Generators
- Fuel shortages: During hurricanes or supply disruptions, fuel may be unavailable.
- Carbon monoxide risk: Backup generators are a leading cause of CO2 poisoning during storms.
- Noise pollution: Not ideal for neighborhoods or light sleepers.
- Short Lifespan: Even with proper maintenance, the lifespan on generators is 20% of the lifespan of solar+battery.
- Reliability: It’s common for generators to experience issues when they’re needed unless they’re tested and exercised regularly.
Battery Systems Work Every Day—Not Just in Emergencies
While generators sit idle most of the year, battery systems help you reduce your electric bill every day by storing solar energy and using it when electricity is most expensive. That’s a benefit you can feel year-round—not just during outages
What Customers Say
“The sun was shining bright; we had plenty of energy to fill up the Tesla Powerwall and share with our neighbors.”
— Eva C., after a week-long power outage from Hurricane Helene in 2024
Make the Switch — Own Your Energy
We’ll help you find the right system for your home, whether you want partial backup or full off-grid capability. No fuel. No noise. No panic. Just peace of mind. Got questions? Our solar experts are here to help.
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