Solar Generator vs. Gas Generator: Which Backup Power Solution is Right for You?

When it comes to ensuring reliable power during outages or outdoor adventures, the debate between solar generators and gas generators often arises. Both options provide backup power, but they differ significantly in terms of cost, capacity, maintenance, and performance. If you're wondering, "Which backup generator should I buy?", this comprehensive guide will help you make the right choice.

What are we comparing?

• Solar Generators: Solar generators consist of two main components: solar panels, and a power station. The power station has an inverter, which takes in, converts, and outputs the power, and a battery, which stores it. Power stations can be used on their own to store and output power, or paired with a generating solution, such as solar panels or a gas generator, to provide ongoing power.
• Gas Generators: Gas generators are generally more well-understood, but the important thing is that there are two main types for home use: stand-by generators, which are hard-wired into your house and can kick on automatically in an outage, and mobile generators, which need to be set up and started to use, but can be taken anywhere. Many generators are able to operate on multiple fuel types, such as gasoline and propane. Finally, gas generators can also be paired with power stations, where the generator charges the power station, which powers your house/rv/etc. This can yield better efficiency, and means the generator doesn’t need to run 100% of the time, since the power station can store power for lower-demand times. Without a power station, gas generators need to run 100% of the time any current is being used.

1. Cost Comparison: Solar Generator vs. Gas Generator

Upfront Costs:

• Solar Generators: Typically more expensive upfront due to advanced components like solar panels and lithium-ion batteries.
• Gas Generators: Much lower initial costs, making them a budget-friendly option for many. A $1,000 gas/propane generator can often put out just as much power as a $15,000 solar generator setup.

Long-Term Costs:

• Solar Generators: No fuel costs and minimal maintenance expenses, resulting in savings over time if used heavily or constantly.
• Gas Generators: Require regular fuel refills (gasoline or propane), which can be costly if used for prolonged periods.

Verdict:
While gas generators have a lower purchase price, solar generators can come out on top if used heavily.

2. Sustainability: Solar vs. Gasoline Backup Power

Sustainability here refers to how viable each option is for long-term use, and what it takes to keep it running.

Solar Generators:

• Can run as long as the sun shines, even generating some in cloudy conditions
• No need to store fuel or refill if long-term use is planned
• Less effective or ineffective in adverse weather conditions

Gas Generators:

• Fuel must be stored if it won’t be constantly accessible
• Fuel can be stored to generate power far more cheaply than batteries
• Fuel takes up minimal space for high power density

Verdict:
Each option has their pros and cons here, but ultimately, it comes down to the length of usage. If you want relatively short-term use (less than a couple months), gas/propane systems come out clearly on top provided you can store all the fuel you need. 

3. Maintenance Requirements

Solar Generators:

• Virtually maintenance-free, with no moving parts to wear out.
• Occasional cleaning/keeping clear of solar panels to maintain efficiency.

Gas Generators:

• Require regular maintenance, including oil changes, filter replacements, and fuel system checks.
• Depending on fuel type, fuel can degrade over time, necessitating proper handling.

Verdict:
Solar generators are generally the lower-maintenance option here, as the most you need to do generally is keep them clean and clear.

4. Capacity and Power Output

Solar Generators:

• Wattage output and storage capacity limited based on power station
• Total power generation in a day limited by solar panels
• Generally can output high ampacity, but often the power station will discharge fully in an hour of peak capacity. Not ideal for heavy draws at night, for example.
• Generally better for lighter-duty applications, as the scale required to run all home systems can get very expensive.
• Compared to power station with gas generator, much more battery capacity required.

Gas Generators:

• Deliver higher power output, capable of running large appliances like refrigerators, heaters, and power tools.
• Can run at or near peak output continuously, unlike solar generators.
• Operate continuously as long as fuel is available, making them reliable for prolonged outages.
• Flexible power output: can run constantly/at full capacity if needed.

Verdict:
Gas generators generally are better for heavier-duty applications, as it’s generally easier to get higher wattage and Wh output in a given time period, while solar generators are ideal for moderate, or longer-term use.

5. Portability and Noise Levels

Solar Generators:

• Larger size range: can go from a few lbs to hundreds, depending on capacity
• Heavier size range than comparable output gas generator
• Operate silently, making them ideal for camping, tailgates, or quiet neighborhoods.

Gas Generators:

• Larger minimum size: generally starting at 40+ lbs
• Generally lighter than comparable solar setup
• Fuel size/weight must be considered as well
• Produce significant noise, which can be disruptive in residential or outdoor settings.

Verdict:
While it depends on the specifics of your situation, a gas generator is generally going to be lighter than a comparable output solar setup, depending on the exact setup and length of use. One huge benefit of solar setups is that you can get small units that weigh just a few lbs, like the Anker C300x, that still pack a punch.

Another thing that’s worth considering when making your decision is the fact that pairing a gas generator with a power station as the charge mechanism can be a massive upgrade. For example, the noise of the generator running is lessened when it’s only run periodically to charge up the power station. You can plug an appliance directly into the power station without needing to start a generator, and wait until the power station is depleted to charge it with the generator.

If you’re interested in by far the best hybrid solution on the market, the Ecoflow Delta Pro 3 and Smart Generator are built to work together, and are the only combo to offer auto start/stop to give ultimate efficiency.

Which Backup Generator Should You Buy?

The choice between a solar generator and a gas generator depends on your specific needs:

• Choose a Solar Generator If:
• You prioritize long-term, frequent (daily) usage.
• You need quiet operation.
• Your power needs are moderate, like charging electronics or running small appliances.
• You prefer a low-maintenance solution.
• Choose a Gas Generator If:
• You need high power output for heavy-duty appliances.
• You need a shorter-term solution that’s only used occasionally.
• You are looking for a cost-effective option for occasional use.
• Noise and emissions are not major concerns.

Conclusion: Solar Generator vs. Gas Generator

Both solar generators and gas generators have their strengths, and the right choice depends on your priorities. If you’re leaning towards long-term usage and convenience, a solar generator is your best bet. However, for demanding tasks and uninterrupted, shorter-term performance, a gas generator might be the way to go.

Still unsure? Get in touch with our team directly, and we’re happy to talk you through your needs and point you in the right direction for absolutely free!