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Powerlines may be limiting savings Australians can make from solar, UNSW research suggests – ABC News

When engineer Rolf Wittwer retired, his dream project was designing an energy-efficient home in regional South Australia. But his solar system kept shutting down and he says local powerlines are too blame.

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When engineer Rolf Wittwer retired in 2012, his dream project was designing an energy-efficient home near the town of Port Broughton in South Australia.
Key points:

  • More than 2 million Australian households have rooftop solar systems
  • When solar systems feed extra energy into the grid, it can increase voltages on nearby power lines
  • A UNSW study found voltages were already sometimes over the upper limit of what was allowed

Rooftop solar was a big part of his pl…

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