The story
What the homeowner called about
He wanted a 50-amp inlet installed so he could plug in his portable generator during a power outage.
What we found
We walked the outside of the house with him and put the inlet where it would be easiest to use in an outage.
What we couldn't know until we got there
Which interlock to use. Interlocks are made for specific panel brands and models, so we identified the panel on site before fitting the correct one.
The options we gave him
A written price for the inlet and the matching interlock.
What he chose, and why
He went ahead with the inlet and interlock.
Why the interlock matters: it physically stops the main breaker and the generator breaker from being on at the same time, so generator power can't feed back onto the utility lines, where line crews may be working.