Residential Backup Generator
Where do I start?
How Do I Convert Amperage to Wattage
Appliances list their power requirements in amperage. Most generators list their output in watts. Fortunately, it’s easy to convert from one to the other:
- Watts = Volts x Amps
- Amps = Watts/Volts
Maximum vs. Rated Power
Generators are often advertised at the maximum wattage they can produce. But you’ll also see the “rated power” listed.
- Maximum power = the maximum output that a generator can produce. Maximum power is usually available for up to 30 minutes.
- Rated power – the power that a generator can produce for long periods of time. Typically 90% of the maximum power.
In general, use rated power to determine if a generator will be able to adequately power your applications continuously.
Here’s how it works:
- The electrician will install your transfer switch first.
- After that’s installed, the team will move your backup generator in place.
- Electric lines will then be connected from your transfer switch to your generator.
- Once electric is hooked up, your pipefitter will make the proper connections from the fuel source to the generator.
- After electric and fuel is hooked up, your generator is ready to start and protect your business.