What is the proper way to connect a generator to household wiring?

The proper way to connect a generator to household wiring is through the use of a properly rated transfer switch. A transfer switch ensures that the generator is safely and effectively connected to the home's electrical system. It serves several important functions: it prevents back-feed, which can be hazardous to utility workers and can damage equipment; it allows for safe isolation of the home’s electrical system from the utility grid; and it ensures that power is distributed safely and efficiently within the household.

Using a transfer switch complies with safety standards and local electrical codes, and it provides a reliable means of delivering power from the generator to the home. This setup also typically includes the ability to switch between generator power and utility power safely.

In contrast, connecting directly to the main panel without a transfer switch poses significant risks, including the danger of back-feeding into the utility lines. Plugging a generator into a wall outlet with an extension cord can cause similar back-feeding issues and poses a fire hazard due to improper load management. Utilizing multiple generators in parallel is more complex and typically requires additional equipment to synchronize the output and is not the standard approach for connecting a single generator to a home.