To determine the right power generator you need, you should consider several factors such as the required power, the application, and the environmental conditions. Here are some steps you can follow to choose the right power generator:

1. Determine the total power you need: Make a list of all the devices you want to connect to the power generator and note the power (expressed in watts or kilowatts) of each device. Sum up the power of all simultaneously used devices to obtain the total power. Make sure to express the power in kilowatts (kW).

2. Choose the type of generator: There are different types of generators, such as portable generators and stationary generators. Portable generators are convenient for temporary use at locations like construction sites or during camping. Stationary generators are more suitable for permanent installations, such as backup power supply for homes or businesses.

3. Determine the fuel type: Generators can operate on different fuels, such as gasoline, diesel, natural gas, or propane. Consider the availability and cost of the fuel and choose the fuel type that best fits your needs.

4. Consider the environmental conditions: Take into account the environmental conditions in which the generator will be used. If you live in an area prone to earthquakes or floods, you may want to choose a generator that is robust and water-resistant.

5. Consult the specifications and power range: Check the specifications of different power generators to ensure they meet your requirements regarding power, fuel consumption, noise level, and other relevant features. Pay attention to the power range of the generator to ensure it is sufficient to cover your total power needs, with a safety margin of 10-20%.

It is always advisable to seek professional advice from a certified supplier or an electrician to help you select the right power generator that meets your specific needs.