Researchers develop breakthrough solar thermal technology to reduce industrial emissions

UniSA and partners have launched a world-first solar thermal demonstrator that could revolutionise how Australian industries generate heat while slashing carbon emissions, according to a statement released on Monday.

The innovative project combines lightweight plastic mirrors with advanced reflective coatings to create a concentrated solar thermal (CST) system that can generate temperatures between 100°C and 400°C—ideal for industrial processes that currently rely on fossil fuels.

Unlike conventional solar thermal systems that use heavy, fragile glass mirrors, this new technology utilises durable plastic mirror panels that can be flat-packed, transported and assembled with minimal infrastructure, significantly reducing costs and installation complexity.

“Industrial process heat accounts for a staggering 25% of global energy use and 20% of CO2 emissions,” said project lead Dr Marta Llusca Jane. “Unfortunately, most renewable energy technologies – like photovoltaics – fall short of meeting the high-temperature demands of these sectors.”

The University of South Australia has joined forces with Impacts Renewable Energy and Charles Sturt University to develop the system, which leverages over a decade of research into weather-resistant reflective coatings. The project is funded by the Federal Government's Australia's Economic Accelerator Ignite program.

Initial testing will take place at Charles Sturt University's “Vineyard of the Future,” where two full-scale modules—each comprising 16 thermoformed and coated panels—will be installed. The technology targets applications including food production, grain drying, sterilisation, water treatment and mining operations.

Industry Professor Colin Hall, who invented the plastic mirror coating technology currently used in the automotive industry, highlighted the timeliness of the innovation amid rising fossil fuel prices and growing pressure for industries to decarbonise.

The researchers claim the system could reduce renewable process heat costs for agribusiness and industry by 40%, creating significant export opportunities for Australian manufacturing.

Picture: credit University of SA