I'm going to chime in with a point. Probably plenty all ready know it, but maybe some don't. Virtually all home solar is actually kind of technically violating some electrical rules. The reason is thatbreakers were not intended to be used to back feed power, but that is the easiest way, so the code peopleactually look the other way.
The problem is as follows. Imagine a 200 amp panel for you house. It has a big 200 amp breaker at the top and the bus bars are designed to handle 200 amps.Further imagine that you have a 40 amp solar. So imagine you have no solar (it's dark) and you turn on every appliance and you are drawing 200 amps. (or a tiny bit less). No problem as the main breaker (the 200amp one) doesn't flip yet. Now turn on the 40 amps of solar and now the main breaker is only seeing 160 amps (160 from the power company and 40 from the solar is going into your appliances. But the important thing is the bus bars are still seeing (or potentially seeing 200 amps). Now start charging your EV (say it's 40 amps) so now the bus bars are seeing 240 amps and the main breaker STILL doesn't flip (because it's now it only sees 200 amps. So you are technically over powering the panel bus bars more than they are rated for. The proper solution is actually to put in a NEW main breaker of 160 amps but almost nobody does that. But the reality is the code people fudge it and allow 20% but it's not really correct. Anyway I'm guessing this has something to do with your adding outlets to a solar panel not being entirely kosher. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20240311/6489e531/attachment.htm> _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
