# Thermal Dawn: Using Phase Change Materials for Efficient Home Heating Thermal storage systems offer a cost-effective alternative to gas boilers by utilizing off-peak electricity. - **Source:** [CleanTechnica](https://cleantechnica.com) - **Published:** 2026-11-06 - **Topic:** [climate](https://brifing.si/c/climate) - **Original article:** - **On Brifing:** https://brifing.si/s/6f3ceb5e-278d-4456-9ebc-3c7b7103f024 ## Thermal Storage Innovation Thermal Dawn introduces a system designed to replace gas boilers by utilizing thermal batteries. The technology stores heat at 70 degrees Celsius or cooling at 5 degrees, leveraging phase change materials to double heat capacity. This approach allows homeowners to maintain comfort while significantly reducing their reliance on expensive grid electricity. ## Operational Efficiency Mechanism The system operates by charging during off-peak hours or midday solar windows, effectively turning the home into a thermal battery. By utilizing existing hydronic pipes or fan coil units, the technology avoids the need for costly infrastructure upgrades. This allows the heat pump to remain inactive during expensive evening peak periods. ## Proven Financial Savings Early installations in Melbourne and Warragul have demonstrated significant economic benefits for residents. Two pilot homes saved approximately AU$1,500 each during the southern Australian winter. By shifting energy consumption to cheaper time slots, the system eliminates the need for gas usage, which previously accounted for a large portion of household bills. ## Strategic Load Management Thermal storage provides a specialized solution for predictable household loads like heating and hot water. Unlike lithium-ion batteries, which serve general-purpose needs, thermal storage is optimized for temperature regulation. This strategy frees up standard home batteries for other essential tasks, such as powering appliances, lighting, and electric vehicle charging requirements. ## Engineering and Development Founder Nick Zeniou, a mechanical engineer, developed the concept while working on commercial air conditioning projects. His background in startups and mechanical design informs the company’s current trajectory. The firm is currently managing its first batch of installations while simultaneously developing a larger product specifically tailored for ducted air conditioning systems. ## Market Expansion Plans Thermal Dawn is actively expanding its reach across Australia, with specific focus on cold-climate regions like Canberra and Sydney. The company is currently engaging with local installers to facilitate broader adoption. While international interest is growing, the team remains committed to perfecting the domestic home model before scaling into apartment block solutions. ## Policy and Sustainability The system is designed to be economically viable without relying on government subsidies. Although Victoria is expected to introduce support for such technologies by mid-2027, Thermal Dawn maintains a focus on self-sufficiency. This approach ensures the business remains resilient against potential shifts in political direction or changes in state-level energy policies. ## Future Energy Outlook By addressing heating and cooling, which represent up to two-thirds of home energy consumption, Thermal Dawn offers a practical solution for residential decarbonization. The integration of phase change materials provides a scalable method to manage energy demand. This technology represents a critical step in optimizing home energy use for a sustainable future. ## Sources covering this story - https://cleantechnica.com/2026/11/05/thermal-dawn-thermal-storage-is-cheap-storage/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._