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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.

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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