Friends:
Some of you may remember when the original Xantrex SW inverters were approved for grid-tie and then that approval was rescinded. Later they were re-approved but only with the add-on GTI boxes. Those were good times, weren’t they? I have learned a little something about that recently that I thought I would share here. During the early 2000s PG&E transferred NEM record-keeping from regional centers to a centralized location. During that process, PG&E lost the files for a number of our customers. We discovered this when smart meters are installed and the system no longer mechanically accounts for power export. We have to lobby long and hard to reestablish NEM authorization. I have done so for many clients. If anyone else is in this position, I might be able to advise. Contact me off-line. My point is that , in investigating the most recent case, we discovered that the SW inverter exports power even when the Sell function is disabled. The amount we recorded was about 200 watts for a 2 kw system mid-morning in October. This system did not have the GTI interfaces. I suspect the GTI units were developed in part to resolve this defect. This may not affect many of you, but if the subject comes up, now you know. Sincerely, William Miller [image: Gradient Cap_mini] Lic 773985 millersolar.com <http://www.millersolar.com/> 805-438-5600 _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
