SUN-500g Grid Tie Inverter in action
The unreliable PowerJack 1200w grid tie inverter has been replaced with a single SUN-500g 24-55v GTI. So far the new inverter is working out well. Conversion efficiency ranges between 85-90% and night time/standby power draw from the AC is zero. This is fantastic, since the PowerJack was drawing around 20 Watts from the AC at night. I can only feed this little beasty with around 450w from my 600w solar array. My panels are laying on an almost horizontal surface, so are not optimized for sun elevation. Also, to those who say I should be getting much more output from my array.. The output of all solar panels is rated/tested under ideal lab conditions. If you are close to sea level, with typical atmospheric haze, on a cool summer day, you will be lucky to see a maximum of 90% of rated output. On a hot day, with the panels at greater than 70 C, your array output is likely to be closer to 70% of rated output as the MPP output of the cells drops about 0.5% for every degree increase above 25 C. If you live on a mountain, where the atmosphere is thinner, cooler and dryer, you might well see greater than the rated output being produced.
Phoenix Datacare 2002 Quiz
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