Excited to use this and even more excited that one of our sales reps with a SMA system has offered to be our guinea pig!
The ABU looks great - just got one to the shop today - it has transfer switch with full 200A capability, auto-transformer, easy inputs for BB-inverter, PV inverter, and smart meter with CTs built for smart energy management. Couple of questions for those that might know, but does the AC coupling of the PV inverter plus the 6.0 BB-inverter mean I might possibly push their combined full output to downstream loads. Even though 200-amp capable ABU, hard to see how I do whole-house backup. We think we get to "inside the walls backup only" which is good except during middle of summer. A bit more than StorEdge power output. Does anyone know the protocol for decreasing the output of the PV inverter when batteries are full? I think it is freq shifting but the diagram does show communication via the home router between the PV inverter and the BB-inverter. I'd think if this was a necessary communication, then SMA would have insisted on a hard-wire connection. Any ideas on what might be shared and for what purpose. This also leads to last question and if freq shifting is the mechanism for throttling back PV inverter output, then I'm thinking that using any brand inverter would work. Look forward to answers and to sharing more as I put this at the home of our Guinea pig...I means sales rep! Howard "Scot" Arey Owner, Solar CenTex NABCEP Certified PV Installation Professional 254-300-1228 scot.a...@solarcentex.com www.solarcentex.com <http://www.solarcentex.com/> https://www.facebook.com/SolarCentex Top-Rated Solar Installer in Texas by Solar Reviews <http://www.solarreviews.com/installers/solar-centex-reviews/>
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