Cleaning up renewable energy
Researchers at the University of South Australia are leading a national push to ensure the dream of renewable energy doesn’t become a nightmare of waste management. Australia has the highest proportion of household photovoltaic (PV) systems in the world, with more than 21 per cent of homes – or around 2.59 million – now possessing a solar energy system. With most PV systems paying themselves off in three to five years, the average 25-year life span of solar panels makes them an excellent investment, delivering a good return for decades after their cost is recovered. Eventually, however, all good things come to an end, and increasingly, industry experts are starting to ask what we’re going to do with all these solar panels when they are due to be replaced. In Australia alone it is estimated more than 100,000 tonnes of solar panels will enter the national waste stream by 2035. Solar energy expert, Professor Peter Majewski, is leading research at UniSA’s Future Industries Institute (FII) to help establish a lifetime stewardship scheme for Australia’s PV industry, ensuring end-of-life strategies are in place long before solar waste peaks. “We have time to plan for this and ensure the processes are in place, but we have to start acting now, as the right practices may take some time to implement,” Prof Majewski says. “There are good stewardship programs in place for products such as paint and tyres in Australia, and we would like to see a similar system in place for solar, where the disposal process is pre-planned as an integral part of the product lifecycle.” While retired solar panels are relatively safe and stable, they are classified as e-waste, meaning they cannot be put into landfill in Victoria. With similar bans likely to follow in other states, the need for alternative […]