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Old 03-16-10, 10:28 AM   #11
Xringer
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Yeah, I guess it could be simpler..

The cheapest SunnyBoy GTI I've seen is over $1,000
SMA Sunny Boy 700U Grid-Tie Inverter, 700 Watt, 150, 200, 250 Volt
Putting out 700 watts (if you have 700 watts of PV panels).

For that price, you could get ten of the cheap Chinese 300 Watt GTIs (3,000 watts)..
If you had 10 panels, you could reap the benefits of power-point-tracking on ten panels..
And, all those panels could be of different brands & power levels.

I'll bet that SunnyBoy has to have the whole array coming in on one pair.
Meaning that a shadow one panel brings down the whole system power..

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