Yes, assuming the SE conductors are rated for 200A, you can backfeed 200A subject to utility approval.
Jason On Fri, Sep 25, 2015 at 11:09 AM, gary easton <g...@arp-solar.com> wrote: > Thanks Jason > That's what we do as well so is the supply connection limited only by the > utility and the rating of the conductors feeding the service? > > > On Friday, September 25, 2015, Jason Szumlanski < > ja...@floridasolardesigngroup.com> wrote: > >> Supply side interconnection is the only option, usually tapping service >> conductors in main panel between meter and existing main. Without other >> complexities present, it's pretty straightforward. We're running into a lot >> of meter/main combos that don't have conductors that can be tapped (copper >> bus bars between meter socket and main breaker. That has required changes >> of service equipment, which can be pricey. >> >> One thing that you should consider... Just because the service is 200A, >> it doesn't mean the utility transformer can handle the backfeed from a very >> large PV array, especially if a neighbor on the same transformer has a PV >> system. In one extreme case we had a single 25kW pole-mounted utility >> transformer feeding SIX tenant meters at a single property ranging from >> 100A to 200A! We wanted to install a PV system larger than 25kW (about 105A >> rating), and the utility blocked the project, denying the request to >> upgrade the transformer, even at the customer's expense. It was a bit more >> complicated than that, but bottom line it was a pure political/principle >> stance. If we had the legal department the utility does, we probably would >> have fought it. >> >> It's a lesson to check the utility transformer serving the property, not >> just the service rating. >> >> >> >> On Fri, Sep 25, 2015 at 9:10 AM, gary easton <g...@arp-solar.com> wrote: >> >>> Hello Wrenches, >>> What are folks doing when installing 100A plus of solar into a 200A >>> service? >>> >>> -- >>> Gary Easton >>> Appalachian Renewable Power >>> Stewart, Ohio 45778 >>> NABCEP Certified Solar PV >>> >>> T: 740-277-8498 >>> www.arp-solar.com >>> >>> “First they ignore you. Then they laugh at you. Then they fight you. >>> Then you win.” >>> ~Ghandi >>> >>
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