My Off-Grid/Backup System in Glendale, AZ

[Westbranch]

phx, what do you think is causing the better efficiency in the OG system, vs the GT system?
6.944Kwh per 1Kw PV vs 4.269Kwh per 1 Kw PV...

[phxmark]

phx, what do you think is causing the better efficiency in the OG system, vs the GT system?
6.944Kwh per 1Kw PV vs 4.269Kwh per 1 Kw PV...

The off-grid system panels are on a tracker.  The grid-tie is rooftop.

I do have a question for the leasing company.  I noticed in full sun today that the PV voltage into the grid tie system is half of what the panel vmp should be.  Panel amps were like 3/4 of Imp amps.  I guess the MPPT algorithm in the Aurora inverter is not as efficient as the Midnite Classic.

[phxmark]

I upgraded my panels to Sun Power E20/327 Watt panels.  What a difference.  I found the panels locally for $190 a piece on Craigslist.  He also had some 435 watt panels, but they were too large for my tracker.

[xolar]

WOW screaming deal on the panels, I have 24 Helios 260 monos waiting patiently to be put in the sun