This story was originally published by the Guardian and is reproduced here as part of the Climate Desk collaboration. As a flock of about 2,000 sheep graze between rows of solar panels, grazier Tony Inder wonders what all the fuss is about. “I’m not going to suggest it’s everyone’s cup of tea,” he says. “But as far as sheep grazing goes, solar is really good.”
Inder is talking about concerns over the encroachment of prime agricultural land by ever-expanding solar and windfarms ─ a well-trodden talking point for the loudest opponents to Australia’s energy transition. But on Inder’s New South Wales property, a solar farm has increased wool production. It is a symbiotic relationship that the director of the National Renewables in Agriculture Conference, Karin Stark, wants to see replicated across as many solar farms as possible as Australia’s energy grid transitions away from fossil fuels.
“It’s all about farm diversification,” Stark says. “At the moment a lot of us farmers are reliant on when it’s going to rain, having solar and wind provides this secondary income.”
By keeping the grass trimmed, which can otherwise pose a fire risk during dry summer months, sheep save the developer the cost of slashing it themselves. In exchange, the panels provide shelter for the sheep, encourage healthier pasture growth under the shade of the panels, and create “drip lines” from condensation rolling off the face of the panels.
“We had strips of green grass right through the drought,” Dubbo sheep grazier Tom Warren says. Warren has seen a 15 percent rise in wool production due to a solar farm installed on his property more than seven years ago.
Despite these success stories, a 2023 Agrivoltaic Resource Centre report authored by Stark found that solar grazing is underutilized in Australia because developers, despite saying they intend to host livestock, make few planning adjustments to ensure that happens. “The result is that many solar farms are poorly suited for sheep,” Stark says. “Developers need to be talking to landholders earlier than they currently are.”
Prof Bernadette McCabe, the director of the Centre for Agricultural Engineering at the University of Southern Queensland, says farming and solar are “two very different activities” and there’s “minimal research and demonstrated success” of running them in combination. The expectation to retain farming land for primary production is driving greater interest in the coexistence of agriculture and renewable energy, but McCabe says “misaligned incentives” between the developers and farmers must be better managed.
It’s these conflicting goals that are giving anti-renewable voices “fodder to attack the renewable energy industry,” according to former New South Wales solar developer Ben Wynn. He says energy developers often “talk up the possibility” of coexisting with livestock production but don’t have “genuine desire to do so.”
Wynn is now part of a community group opposing a large solar farm proposed south of Tamworth because it lies on productive cropping country. “We need this transition to speed up, but if we take up highly arable black soils we are giving oxygen to the naysayers,” he says.
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