On grid w/battery (was non wrenches) [RE-wrenches]

[Joel Davidson]

Dear Marco,

I have great respect for Rob Wills. I'd like to see a Multi-Mode in
operation. Where is the nearest system to LAX?

Xantrex is slowly getting their act together with the SW/GTI. May 24, I
posted info about a group of users exchanging emails. Check out SW - GTI
Problems on this list.

"Mangelsdorf, Marco" wrote:

> Joel and others,
>
> At the risk of sounding like a syncophant salesman for our friends at
> Advanced Energy, Inc. in NH, their Multi-Mode battery-based 5 kW
> inverter was designed to do exactly what the SW can't do: max power
> point track.  Their inverter also uses no grid power at night to keep
> the batteries floated.  I've been closely monitoring a number of
> Multi-Modes in the field here in the tropics and the reports have been
> very positive in terms of performance.
>
> On another point: what's the latest with Xantrex getting UL listing for
> the SW 4.2 with the GTI?   It's my understanding that the SW/GTI has
> been approved by CTL in oh Canada but has yet to get official UL
> approval.  Does anybody know anything otherwise?  Has anyone had any
> difficulty getting their new SW/GTI assembly approved by the AHJ or
> local utility?
>
> aloha,
> marco
> ProVision Technologies, Inc.
> Hilo, Hawai'i
> www.provisiontechnologies.com
>
> >From Joel Davidson:
>
> The point is our battery bank has just sat there 35,000 hours keeping us
> off the
> PV array max power point and buying a float charge at night from the
> grid for
> less than 24 hours of relatively non-essential backup power.
>
> Of course, I'd have to change inverters unless Xantrex figures out how
> to get the SW4048 to max power point track when on the grid and function
> as a
> UPS in stand-alone mode during grid outages.
>
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