Looks like standard AC coupling. We typically just redo the whole system rather than retro fit. Depending on the system size, it's usually not that much more work (racking is already up) and the end result is always a regulated charge to the batteries.
It would be great if someone would come up with a regulated AC coupled charge versus an all or nothing approach via phase shifting or relay controlled. Wayne Irwin President License #CVC56695 State Licensed Solar Contractor Pure Energy Solar International Inc. wa...@pureenergysolar.com http://PureEnergySolar.com http://SolarChargingStation.net 352 377-6527 Office 352 336-3299 Fax The Sun Is Always Shining! The content of this message is Pure Energy Solar Confidential. If you are not the intended recipient and have received this message in error, any use or distribution is prohibited. Please notify me immediately by reply e-mail and delete this message from your computer system. Thank you. ________________________________ From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> on behalf of Ken Schaal <k...@commonwealthsolar.com> Sent: Wednesday, September 12, 2018 8:11 PM To: RE-wrenches; Ken Schaal Subject: [RE-wrenches] Any thoughts on this approach to adding battery backup to an existing grid tie system will be appreciated. https://www.youtube.com/watch?v=eyhkIfS5Z-Q
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