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These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

A pigtail is the only safe way to connect an electrical device to more than one circuit wire. Connecting multiple wires to a single screw terminal is extremely dangerous and must never be done. Many electricians will opt for pigtails even when there are multiple screw terminals available so that the device in question won’t halt the flow of downstream current when a problem arises. 

It’s possible to distinguish a positive black wire from a negative black wire if you know what type of circuit the wires are in. If it’s an alternating current (AC), then black wires are positive. If it’s a direct current (DC), then black wires are negative. 

Sometimes, a circuit has two black wires. In that case, the positive black wire will be solid black while the negative black wire will have a white stripe on it. If you’re still unsure, you can use a multimeter to check.

Yes, U.S. municipalities require electricians to hold an electrical contractor’s license. In some cases, a certified electrician will send an apprentice or journeyman that works underneath them, but the primary electrician still needs to hold the proper license. Without an electrical contracting license, your professional won’t be able to pull the proper permits for your project. You can use Angi’s contractor licensing search to confirm that an electrician you’re considering hiring is fully licensed. Don’t forget to verify the electrician’s insurance coverage and any third-party certifications before hiring.