How much power does a solar panel generate?

Answer

The output of a solar PV system depends on its size. The most common household systems are 5kW or less, although some property owners have installed much larger systems. The table below shows the average daily production of some common grid-connected systems throughout Australia.

A typical Australian house consumes around 18 kilowatt hours (kWh) per day so a 1-2kW system displaces an average of 25-40% of your average electricity bill. Solar panels produce more energy in summer than they do in winter.

Showing 2 reactions

Stewart Adam commented 2015-10-17 10:51:08 +1100
Very interesting Ken. It’s a bit like why computer chips are either water or Nitrogen cooled. When batteries are more common, and lower in price, I too will head in that direction.

Stewart Adam commented 2015-10-16 17:43:23 +1100
Thanks Ken. You answered the question just fine. Of course, it does depend on the particular panel and where it is located geographically and on the roof. I have LG Electronics LG275S1C-B3 solar modules (panels) and each is rated at a Maximum power in a standard test condition (Pmax) at 275 W. Five are positioned facing North, while six face West. But what do I achieve? On a nice clear sunny Melbourne day in October (above 26 C) the 11 panels generated 14.19 KWh for the day. But that’s Melbourne where a 3.0 KWh system typically generates some 10. 8 KWh. In Adelaide, Brisbane and Cairns that would be 12.6 KWh.

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