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Home Q & A Board Science-Related Homework Help Physics
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Lexyz Lexyz
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11 years ago
I've been looking at solar panels. They're rated in DC Watts, but lots of household things use AC. So if a solar panel produced 200 DC Watts, how may I calculate it in AC Watts?
I would like a web site or something, that I could plug in different values and have it converted in AC.  With opinions to change the units and the effinicney of the transformer.
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wrote...
#1
11 years ago
ideally RMS AC power would equal DC power X inverter efficiency.
wrote...
#2
11 years ago
AC watts is equal to DC watts. This is why rms values are used. There will be some losses in the conversion equipment.
wrote...
#3
11 years ago
You need to convert the DC power to AC by using a device known as an "inverter".  Inverters are not 100% efficient. so there is some loss.  Suppose your inverter has an efficiency of 90%, then 200 watts out of your solar panel becomes 200*0.9 = 180 watts ac available for appliances.
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