It would be sweet if the Fortress Envy had auxiliary shunts like the Radian for measuring multiple power sources, but alas it does not.
I have systems with as many as -4- online platforms, due to multiple inverter brand upgrades and AC-coupling.through the years. And when I need to see critical power curves / use patterns and other in-the-weeds stuff, I also add an egauge. Sounds crazy, but it's the only way sometimes to completely monitor and cross-check larger systems On Sun, Jun 30, 2024 at 11:11 AM Dave Angelini Offgrid Solar via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote: > You and the client lose the ability to monitor it all in one place do you > not? > > > > *Dave Angelini Offgrid Solar > "we go where powerlines don't" > <http://members.sti.net/offgridsolar/>https://offgridsolar1.com/ > <https://offgridsolar1.com/> <http://members.sti.net/offgridsolar/> > e-mail offgridso...@sti.net <offgridso...@sti.net> > text 209 813 0060* > > > On 2024-06-29 4:48 pm, Kirk Herander via RE-wrenches wrote: > > > All, > > I'm wondering if there are any precautions if charging a Fortress Evault > LFP bank using 1 or more OB charge controllers, in tandem with an Envy > inverter PV input. > > I know it will have to be programmed differently, and it will be open > loop, no CC control from the BMU,. > > This is a net metered system using a Fortress 12 kw inverter. The total PV > input of the inverter is 21 kw. Max sell back is 12 kw, while charging > batteries at 6 kw. > > My issue is the customer has his heart set on maxing out the roof capacity > at 25 kw. And I don't really need to add a second inverter for > critical loads, Only to increase integrated DC-coupled PV capacity. > > So I feasibly put part of the array on external charge controller(s) , > open-looped, and the remainder on a single 12kw Envy inverter. > > A second inverter also increases the AC capacity, and as a result, > involves a more comprehensive review for net metering approval in Vermont > (new trigger for additional review is greater than 15 kw AC).. > > > -- > > *Kirk Herander / **kirkh@vermont.solar <kirkh@vermont.solar>* > > *Owner|Principal, VT Solar, LLC* > > *Celebrating our 33st Anniversary 1991-2024!!* > > dba Vermont Solar Engineering > > 802.559.1225 > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > -- *Kirk Herander / **kirkh@vermont.solar <kirkh@vermont.solar>* *Owner|Principal, VT Solar, LLC* *Celebrating our 33st Anniversary 1991-2024!!* dba Vermont Solar Engineering 802.559.1225
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
