right, thx. (175A main brkr and 225A bus will allow 95A of PV.)You are not going to be able to install a 80 amp PV breaker into a CSED that has a 200 amp main breaker even if it has a 225 amp buss. You would need to replace the 200 amp main with a 175 amp breaker.
Thank you. That will work.I'll bite. I would spec a Milbank U5854-PXL-200 meter-main without any bussing for branch breakers. That would feed a Square D HOM4080M200PC main panel in the garage, and I would tap the 4/0 AL feeders to a breaker enclosure next to the meter-main, and that would feed a 100A 6-space AC combiner panel next to the inverter in the garage with two 40A breakers for the inverters. If your utility requires a visible break disconnect, you will need to use a fused knife switch instead of a breaker enclosure. And of course most regions don't use ring-type metering equipment like we do here, so you will need to figure out the equivalent ringless model. I can't wait until PCS becomes widely available making line-side and feeder taps a thing of the past.
Thanks.I thought Siemens had one with the 'parallel energy disconnect' in a separate compartment, i.e. 2020 NEC compliant. But maybe that's only the 400A versions.
I like the 175A breaker idea, almost no one actually uses 48kW. Otherwise, it's going to be in essence either a supply side tap or a load side tap.
If "combo SP" means meter/main/distribution all in one panel, I would say that is much less flexible, even though it seems to be standard here in CA. Adding a feeder between the main breaker and the distribution allows for doing a feeder interconnection, as PW Dickerson observed. It also simplifies installing any future ESS with backup (MID). So put me down as also voting for a meter/main only next to a separate distribution panelboard (which if MLO should have provisions for adding a main breaker).However, was hoping for a combo MSP, instead of separate meter and separate SP.