The proof is in the heating – Roof-Mounted Solar Panels Success

German Roof-Mounted Solar Panels

Something extraordinary happened to the German national power grid during the  pleasantly mild early weeks of last summer. Not only did the country’s almost 1  million, mainly rooftop (photovoltaic) solar panels pump 13.2 gigawatts into the  grid – the equivalent output of up to a dozen nuclear power plants, or about 40  per cent of the highest-ever demand in Australia’s national electricity market –  but they did so at exactly the right time.

That is, when demand was peaking. Whatever variability there might have been  in the output of individual solar panels, due to shadowing, passing clouds or  local rain, was smoothed out by the geographic range and sheer number of panels  nationwide.

What the German experience demonstrates is that the stars are aligning for  conventional roof-mounted solar panels, or photovoltaic (PV) panels, as a reliable and  increasingly competitively-priced power source to make a significant  contribution to electricity generation.

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