The running watts are the most helpful in determining how many devices you will be able to connect to a generator. How to Connect a Generator to Your HouseFor this article, we’re assuming you’re using a portable generator or power station, not a professionally installed whole-house standby generator, which tends to be more involved. They connect to your generator using a twist-lock generator cord that matches the amperage of your generator. If you're using a fuel-based generator, you’ll connect through a outside the house. The new breaker connects to an that you connect your generator to with a 30- or 50-amp twist-lock generator cord.