Wedoany.com Report-Oct. 11, Sydney-based climate technology startup Coolsheet has initiated a commercial-scale pilot of its patented aluminum heat exchange panel, transforming standard solar modules into hybrid PVT systems suitable for new installations and retrofits. The project is being tested at the North Sydney Olympic Pool, where panels are attached to the rear of 206 550 W PV modules to optimize renewable energy output from constrained roof areas.

The setup generates 114 kWe of electricity while producing two to three times that in thermal energy from the same space, according to the company. This hybrid array powers an all-electric heating system that sustains year-round temperatures for over 3 million liters of water across five pools, enhancing energy efficiency for public facilities.

Coolsheet Chief Technology Officer Tom Hoole described the installation: “As the site now nears completion it’s clear it will be a world-class facility showcasing how renewable heat can be built into public infrastructure.” He noted the system's carbon neutrality, aligning with North Sydney Council’s goal of carbon neutrality by 2035, as extra power from cooled panels offsets the circulation pump's energy use.

The PVT technology targets sectors requiring low-grade process heat between 60°C and 90°C, such as food processing, beverage production, dairies, greenhouses, industrial laundries, hotels, resorts, and aquatic centers. Certified as Australian-made, it uses domestic components like polymer tubing, pipework, and aluminum, supporting local manufacturing.

Developed over five years with the University of New South Wales, the system captures waste heat from solar panels—where up to 75% of absorbed solar energy dissipates as heat—via a lightweight water jacket. This stored energy heats water tanks or preheats loops for heat pumps. Cooling the cells improves electrical efficiency by up to 4% per 10°C temperature drop; in Australian climates with modules exceeding 65°C, overall gains can reach 15%, reducing thermal stress and prolonging panel life.

Coolsheet Chairman Doug Smith highlighted its competitiveness: “Our pricing is around 35% less than our European competitors based on our Sydney 5 MW pilot line, but that is pre-automation, so we see a competitive future with scale even as the new market entrants arrive.” The system provides a gas alternative for water heating, promoting sustainable practices.

Funded by $1.3 million in founder capital and grants, Coolsheet is seeking further investment to grow its team and expand production. This pilot demonstrates the potential of PVT for efficient, space-saving renewables, positioning Coolsheet to meet rising demand for hybrid energy solutions in commercial applications.