Robert Bruninga wrote:
The beauty of GRID-TIE is the UNLIMITED storage capacity, the lack of maintenance, and the ability to store up summer excesss for use in the winter when you need it.
That's why Outback and couple of other manufacturers make PV system inverter/chargers that can operate both in grid tie and battery back-up modes.
You need some capacity for when the grid goes down, and you use the grid for storage during sunny stretches, and for long stretches when there's little sun.
Our last PV system had Marathon AGM (sealed) lead-acid batteries for back-up. Our new PV system probably will too.
Len Moskowitz _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
