What’s the difference between gas and diesel generators?

Choosing Between Gas and Diesel Generators

When selecting a portable generator for off-grid applications, the choice between gas and diesel often comes down to your specific power needs and the trade-offs you’re willing to make. Diesel generators are generally more powerful and fuel-efficient, but they also tend to be heavier and noisier than gas generators. For example, a typical 5 kW diesel generator might weigh around 200 pounds and produce 70 dB of noise, while a 5 kW gas generator might weigh around 150 pounds and produce 60 dB of noise.

Factors to Consider

When deciding between gas and diesel generators, consider your specific power requirements and the frequency of use. If you need a high amount of power for short periods of time, a diesel generator might be a better choice. However, if you need a generator for occasional backup power or remote work, a gas generator might be a more practical and cost-effective option. Additionally, consider the runtime you need from your generator. Diesel generators can often run for 12-24 hours on a single tank, while gas generators typically have a runtime of 6-12 hours.

Portable Generator Sizing

When selecting a generator, it’s essential to size it correctly for your specific needs. A good rule of thumb is to add up the wattage of all the devices you plan to power and then add 10-20% to account for startup surges and other inefficiencies. For example, if you need to power a 4 kW air conditioner, a 5 kW gas generator might be sufficient, while a 6 kW diesel generator would be a better choice. By considering your specific power needs and the trade-offs between gas and diesel generators, you can make an informed decision and choose the right generator for your off-grid applications.