Hi Phil,
The 20A 120VAC courtesy outlet is on a 20A breaker at the ground mount array that we put on most volunteer solar jobs that pass inspection. I don't see why a 240VAC on a 50A breaker tapped off (at the array or home) would be any different. The NEC code says the solar circuit is on a single dedicated line - same for an EV charging circuit, so technically solar arrays shouldn't have *any* courtesy outlets on them even though they pass inspection. The garage tap-off for solar seems like the same fudge since that's not dedicated either - but passes inspections & local electricians tell me that both are ok. Have a renewable energy day, Mark Mark E. Hanson 184 Vista Lane Fincastle, VA 24090 540-473-1248 phone & FAX, 540-816-0812 cell REEVA: community service RE & EV project club Website: www.REEVAdiy.org (See Project Gallery) UL Certified PV Installer My RE&EV Circuits: www.EVDL.org/lib/mh REEVA Demo: http://youtu.be/4kqWn2H-rA0 Fincastle Solar Weather Station <https://www.weatherlink.com/embeddablePage/show/a88920376f864ecabaed843dd8975b8d/signature> From: (-Phil-) Sent: Sunday, March 10, 2024 6:07 PM To: Electric Vehicle Discussion List <ev@lists.evdl.org> Cc: Mark Hanson <markehans...@gmail.com> Subject: Re: [EVDL] Adding a 14/50 EV courtesy outlet to a solar array Yes, you'd need a subpanel, as any outlets you add could get 50A from the breaker PLUS whatever your solar is generating. The 120v outlet without a proper breaker to limit current is super dangerous, as you'll definitely get 50A even at night, and even more during the day! On Sun, Mar 10, 2024 at 2:56 PM Mark Hanson via EV <ev@lists.evdl.org <mailto:ev@lists.evdl.org> > wrote: > > Hi Folks > I was reading in Solar Power World where a California solar installer adds a > 14/50 240Vac 50A outlet on the same solar array 50a circuit (for EV > charging). We have added 120vac courtesy outlets on our solar array and pass > inspection even though NEC says solar must be on a dedicated circuit (also > tap off garage circuits that are not dedicated). I couldn’t find anything > direct on Google if it’s a code violation to add a 240V outlet like we do a > 120V outlet on the same 50A branch circuit? Does anyone know if this is > ok/code compliant? I assume a local 50A breaker to the 14/50 outlet might be needed since there’s two sources, 40A solar plus 50A from panel branch circuit. > Best regards Mark > Sent from my iPhone _______________________________________________ Address messages to ev@lists.evdl.org <mailto:ev@lists.evdl.org> No other addresses in TO and CC fields HELP: http://www.evdl.org/help/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20240310/439093d9/attachment.htm> _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
