Performance matters [RE-wrenches]

[Marco Mangelsdorf]

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>From Antony: "Is he the only one who has collected data, or is there no
interest in real world performance?"

I have several systems' worth of performance data.

* Waikoloa, sunny side of the Big Island of Hawai'i
3 kW STC array with SB2500
12.93 kWhs/day average after two years of operation

* Kailua-Kona, sunny side of Big Island
3 kW STC array with SB2500
11.7 kWhs/day average after one year

* Kawaihae, very sunny side of the Big Island
7.2 kW STC array with two Xantrex SW4048s (w/battery back-up)
25.77 DC kWhs/day average after two years
22.54 AC kWhs/day average = 87.5 percent DC-AC efficiency

* Kahului, Maui
32.4 kW STC array with Xantrex PV45208
132.3 kWhs/day average after .79 years

marco
ProVision

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