A 2200 watt generator can produce 18.33 peak amps at 120 volts. You can calculate power capacities like this with the Watts = Amps x Volts formula.
Keep in mind that the running watts available after this burst are lower. 2200 peak watt generators often have around 1800 running watts.
In turn, a good 2200 watt generator should be able to continuously run devices that require up to 15 running amps (not considering any potential power loss).
That means you will not be able to make full use of the 20 amp and sometimes even 30 amp outlets this power level of generators has.
How many amps does a 2200 watt generator produce?
A 2200 watt generator can produce 18.33 peak amps. After that, a generator at this power level can typically produce 15 continuous amps (considering 1800 running watts).
To figure out how many amps a 2200 peak watt generator can run you want to use the fundamental Watts = Amps x Volts formula.
Since you will likely run 120-volt devices, a 2200 peak watt generator should be able to produce 18.33 peak amps.
You do want to keep in mind that after these initial 2200 starting watts, generators of this power level offer fewer running watts and in turn, running amps.
More specifically, 2200 peak watt generators tend to offer 1800 running watts (although individual models can vary).
That means 2200 peak watt generators should be able to run 15 continuous amps after the peak burst of power.
With this information, you can look at the watt needs of devices to figure out what you can run with a 2200 watt generator.
Why do 2200 watt generators have 20 amp outlets?
2200 watt generators have 20 amp outlets because they are convenient and likely cheaper to manufacture.
Some of these generators even have 30 amp outlets.
These details sound weird because 2200 watt generators typically “only” offer 18.3/15 peak/running amps.
However, since 20 amp outlets are the standard (in the USA), connecting your devices to the generator should be easier with one of these outlets.
Additionally, connecting a 2200 watt generator to an RV or camper without adapters is a lot more convenient with a 30 amp outlet.
Secondly, I can imagine it is easier for generator manufacturers to just use the standard 20 amp outlets. In turn, this can benefit the price.
The things above still apply but that means you need to take how many amps 2200 watt generators actually produce into account to avoid overloading the machines.
