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Chris, My first take on it is that it's been developed for those who already have batteryless GT systems and now want to add backup capability. The Tesla Powerwall has generated plenty of buzz, even though it's still expensive and unavailable, for battery backup. Seems like smart marketing to me, to have a ready solution to allow a relatively simple add-on package, with batteries, battery-based inverter, and controller/transfer switch, that allows the array to recharge the batteries during an outage. The Radian (or Schneider XW) are good approaches for new systems, but there are thousands of batteryless string-inverter systems out there, and this is a key part of an add-on package. Seems to me it beats an AC-coupled add-on package. Just my $0.02001, as Matt used to write... Allan Allan Sindelar On 6/3/2015 6:02 AM, Chris Mason wrote:
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