SW again [RE-wrenches]

[Kurt Nelson, SunWise]

Sharkey wrote:  Face it, in a grid intertie system, there is really no
difference between powering your household appliances from the battery
bank and powering them
from the grid.

This is pretty close to what I said many months ago.  The performance of
the Trace as a grid-tied system AND back up-up/battery based inverter is
very poor.  Might be better to use the grid when necessary, and power
loads for the most part from the battery/inverter (LBX).

I don't think we should have to sell two inverters, especially when we
are so close with the SW.  If we are going to ignore this inefficiency,
then I believe we need to take a closer look at the Omnion product and
others.  Also, how do you propose switching PV to and from a batteryless
ST or SW, while providing DC to the DR or or SW other house inverter? 
(Probably better done at the DC level, and bring the "sale" on at a set
voltage level?)?  Can an ST be on line, or would we be back to an SW?

I don't have the answers, but it seems like the market is crying out for
an inverter, or system, that will do the job that needs to be done.

Kurt Nelson

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