I have no electrical know-how, so I apologize if this is a n00b question. In February we bought an older house (built in the 70s), and I need to install a NEMA 14-50 outlet in anticipation of my Model 3 and possibly a CPO Model S in the interim. I am not sure the amperage capacity of my panel. I thought the panel in my previous home just said so right on the panel, but that home was built in 2007.
In the first pic below, the piece of paper that is older than me says the "Main Rating" is 125 amps, but the current breaker switches installed add up to more than 125 amps already. The panel passed inspection when we bought the house, so either (1) the panel has been upgraded at some point or (2) I am doing it wrong.
If there is physical space for additional breaker switches does this mean there is additional amperage capacity necessary to support the 14-50? Or is the only way to know for sure to open it up and look? Obviously I'll have an electrician come out to do the work, but I would like to know if I'll need a new panel to support home charging so I can budget for that now.
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In the first pic below, the piece of paper that is older than me says the "Main Rating" is 125 amps, but the current breaker switches installed add up to more than 125 amps already. The panel passed inspection when we bought the house, so either (1) the panel has been upgraded at some point or (2) I am doing it wrong.
If there is physical space for additional breaker switches does this mean there is additional amperage capacity necessary to support the 14-50? Or is the only way to know for sure to open it up and look? Obviously I'll have an electrician come out to do the work, but I would like to know if I'll need a new panel to support home charging so I can budget for that now.
View media item 114694View media item 114693