In a message dated 04/21/2002 11:41:18 PM Pacific Daylight Time, kentsheldon@sbcglobal.net writes:
Bottom line, a PV inverter is an electronic device. Heat kills
electronics. The cooler they operate, the longer they last and the more
power you can put through them.
I just want to support Kent's message here. I followed this thread from the beginning and in my mind questioned the wisdom of operating any device at a 100% of rated output. Not good design! Leave some room for reality here!
An example, In central CA, we often run 24- 25-- 120 w modules in series on a SB 2500.
In the summer with ambient > 100 F we will see derate, we can live with that or put a small muffin fan on the cooling and run at full output. With 2880 w STC in we can count on 2000- 2200 w out. This is good. Trying to cram more power through any inverter by pushing to max rated output is asking for trouble. I just want to support the very good points made already on this topic.
Best, Don
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