Solar generator vs gas generator comes down to how much power you need and for how long. A solar generator (a battery power station paired with solar panels) is silent, makes no exhaust, and can run indoors, so it suits fridges, lights, Wi-Fi, CPAP machines and camping gear. A gas generator wins when you need thousands of watts for many hours, because a refill takes minutes instead of a full day of sun. Many households own both.
Solar generator vs gas generator at a glance
A “solar generator” is not a generator in the engine sense. EcoFlow’s blog describes it as a portable power station, which only stores energy, paired with solar panels so it can make its own. A gas generator burns fuel in an engine to make electricity on demand.
| Factor | Solar generator | Gas generator |
|---|---|---|
| Power output | Limited by the inverter, about 1,500W to 2,400W on most portable units | Thousands of watts, sustained, for as long as fuel lasts |
| Energy supply | Fixed battery capacity, refilled by sun or outlet | Refill the tank and keep going |
| Noise | Near silent (fan noise only) | Engine noise, even on quiet inverter models |
| Indoor use | Yes, no exhaust | Never indoors or in a garage |
| Maintenance | Very little | Oil, fuel storage, regular running |
| Fuel cost | Free from sun, cheap from the grid | Ongoing gasoline or propane cost |
Power output: where gas generators still win
Output is the rate a unit can deliver at once, measured in watts. Our gas example, the 5.5kW dual fuel inverter generator, is listed at 5,500 starting watts and 5,000 running watts, with a 120V 30 amp RV outlet and two 120V 20 amp outlets. It runs on gasoline or LPG.
Most portable solar generators deliver less. The Jackery Solar Generator 1000 v2 is listed at 1,500W output, and the Jackery Solar Generator 1500 v2 at 2,000W with a 4,000W surge. Matching gas means stepping up to systems such as the Jackery Solar Generator 5000 Plus, listed at 7,200W to 14,400W output, at a much higher price.
Runtime and refueling
Runtime is where the two feel most different. The gas generator listing gives about 8 hours at 50% load and about 5 hours at 100% load on its 3.2 gallon tank. Shut it off, let it cool, refill, and it keeps going as long as you have fuel. That is its biggest advantage in a long outage.
A solar generator has a fixed tank, its battery capacity in watt hours (Wh). The Jackery Solar Generator 2000 v2 is listed at 2,042Wh. A 200W load would run roughly 10 hours, a bit less after inverter losses. Jackery lists 1.7 hours for an emergency wall charge, while solar refills depend on panel wattage, weather and season.
If you are sizing for a fridge, our power station for refrigerator guide walks through running watts and daily energy.
Cost over time
A simple comparison. These are assumptions for illustration, not quotes: gasoline at $3.50 per gallon and grid electricity at $0.17 per kWh. Check your local prices.
- Gas, half load: 3.2 gallons for about 8 hours (from the listing) is about 0.4 gallons per hour, or roughly $1.40 per hour at our assumed fuel price. Running 24 hours a day at that load would use about 9.6 gallons, roughly $34 per day.
- Solar generator, grid recharge: refilling a 2,042Wh battery from the wall is about 2kWh of electricity, roughly $0.35 at our assumed rate before charging losses.
- Solar generator, sun recharge: no fuel cost once you own the panels.
The catch is scale: that half load is about 2,500W, which drains a 2,042Wh battery in under an hour. For light essentials, solar is far cheaper to run. For big loads around the clock, gas is usually the more practical choice, because a battery large enough to match it costs far more up front.
Quiet generator options: noise compared
If you want a quiet generator for a campground, a shared wall, or a bedroom during an outage, battery wins clearly. Jackery lists the HomePower 2000 Plus v2 at about 30dB, and the HomePower 1000 v2 at under 30dB.
Inverter gas generators are quieter than older open frame models, but they are not silent. Our gas listing gives 58 decibels at 23 feet in ECO mode, likely louder under heavier load.
Indoor safe generator: carbon monoxide and safety
This is the most important difference. Gas generators make carbon monoxide (CO), which you cannot see or smell. The American Red Cross generator safety page says never to use a generator inside a home, garage, basement, crawlspace or any partially enclosed area, and to keep it away from doors, windows and vents. It also notes that opening doors and windows or using fans will not prevent CO buildup. Install CO alarms on every level.
Our gas listing includes a CO sensor, which is a useful backup, but it does not make indoor use safe. A battery solar generator makes no exhaust, which is why it is the indoor safe generator option.
Connecting either one to house wiring needs a transfer switch or interlock installed by a licensed electrician. Never backfeed through a wall or dryer outlet. The Red Cross warns it risks electrocuting utility workers, neighbors and your household. Your electrician and local code have the final word.
Maintenance
Gas generators need oil changes, fresh or stabilized fuel, and periodic running, per the owner’s manual. Fuel storage matters too: the Red Cross advises an approved safety can, stored outside living areas, and notes that local laws may limit how much fuel you can keep.
Solar generators need very little. Jackery lists 6,000+ cycles for its LiFePO4 HomePower 2000 Plus v2, and Anker lists 3,000 cycles for the Anker SOLIX C1000 Solar Generator with 200W panel. Those are manufacturer figures.
Which to choose: outages, camping and RV
- Short outages and essentials: a 1,000Wh to 2,000Wh solar generator runs a fridge, lights and Wi-Fi quietly indoors. See our home backup power guide for planning.
- Long outages with big loads: gas, or a large expandable battery system such as the HomePower 3600 Pro Max, which Jackery says can also recharge from a gas generator.
- Tent camping: solar, for silence and no fuel to haul.
- RV: gas if you run a rooftop air conditioner for hours; solar for lights, fans, devices and quiet hours.
For sizing basics, read our portable power station buying guide or browse all Jackery products.
Our solar and gas generators compared
Prices are from our listings and can change; specs are manufacturer figures.
| Model | Capacity | Output | Notes | Price |
|---|---|---|---|---|
| Jackery Solar Generator 1000 v2 | 1,070Wh | 1,500W | 1 hour emergency charge | $789 |
| Jackery HomePower 1000 v2 | About 1kWh | 1,500W | Under 30dB | From $939 |
| Jackery HomePower 2000 Plus v2 | 2,048Wh, expands to 12kWh | 2,400W | About 30dB | From $1,099 |
| Jackery Solar Generator 1500 v2 | 1,536Wh | 2,000W (4,000W surge) | 31.97 lbs | $1,279 |
| Jackery Solar Generator 2000 v2 | 2,042Wh | 2,200W | 17.9kg | $1,479 |
| Anker SOLIX C1000 + 200W panel | Not listed | Not listed | 600W solar input | $1,548 |
| Jackery HomePower 3600 Pro Max | 3.6kWh, expands to 43kWh | 2,000W at 120V, 4,000W at 240V | UL 9540 certification per listing | From $2,249 |
| 5.5kW dual fuel inverter generator (gas) | 3.2 gallon tank | 5,000W running, 5,500W peak | Not sold in California | $1,138.99 |
Frequently asked questions
Is a solar generator an indoor safe generator?
Yes. A battery solar generator makes no exhaust, so it can run inside. Gas generators must never run indoors or in a garage.
What is the most quiet generator option?
A battery solar generator. Jackery lists its HomePower models at about 30dB. Our gas inverter generator is listed at 58 decibels at 23 feet in ECO mode.
Can I run a gas generator in the garage with the door open?
No. The Red Cross says never to run one in a garage or partially enclosed area, and that open doors and fans will not prevent carbon monoxide buildup.
Is a solar generator cheaper than a gas generator over time?
For light loads, usually yes, because sun is free and grid recharges cost little. For heavy loads around the clock, gas is usually more practical, though fuel costs add up over time.
Questions about sizing? We offer free freight shipping on orders of $999 or more ($200 flat below that). Call 866-777-2590, Monday to Friday, 9AM to 6PM PST, or see our return and refund policy.
