Your Gas Boiler Is the Problem.Your Roof Is the Answer.
Australian-made thermal storage that replaces your gas boiler and runs your heating, cooling, and hot water on solar you've already generated, for around half the cost of a home battery.
Free, no obligation. We confirm your home fits and quote a fixed price.
Our first home is live in Melbourne, gas meter off the house, and the second is now running too. Ready to commit? Reserve your system for a fully refundable $190.
Graduated
Summer '26 Accelerator
Backed By
Government and industry
Stop Wasting Your Solar Energy
Your panels make most of their power between 9am and 3pm. But your home needs energy most at dawn and dusk, when the sun's gone.
So you export cheap solar by day, then buy expensive grid power at peak. With feed-in tariffs near zero and "sun taxes" coming, that exported solar has gone from a credit to a cost.
Solar Export Prices Have Declined
and Are Soon to Be Taxed
Solar export price, per kWh. Indicative: premium-era feed-in schemes against today's rates, drawn from Essential Services Commission and AER reporting.
Meanwhile Grid Electricity Prices
Continue to Rise
Grid electricity price, per kWh. Indicative, drawn from AER reporting.
Batteries are Expensive and Risky
Home batteries cost $8,000–$15,000, degrade within a decade, and carry fire risk. Thermal Dawn stores your solar as heating, cooling, and hot water for a fraction of the cost, no degradation, no fire risk, and made in Australia.
Fossil Fuels Keep Getting More Expensive
Every time you heat or cool at dawn or dusk, you're paying premium rates for fossil-fuel power. Thermal Dawn shifts that demand to your own solar hours, cutting bills and emissions while you stay comfortable year-round.
So What Does It Cost?
$20,000–$40,000What a traditional hydronic heat pump replacement typically costs in Australia
$8,000–$15,000What a home lithium battery costs, and it fades within a decade
Well below bothThermal Dawn installed, with thermal storage, cooling and smart controls included
Every home is different: pipework, placement, switchboard, and how many of the four capabilities you want all move the number. You get a fixed installed price at your free site assessment, with nothing to pay until you approve it.
How Thermal Storage Works
Heating, cooling, and hot water are 60 to 70% of your home's energy use, and most of it hits at peak times when power costs the most.
Thermal Dawn captures your abundant morning solar and stores it as heating, cooling, and hot water for when you actually need it: dawn, dusk, and through the night.
Solar generation Water heating ~20% Heating & cooling ~40% Appliances & lighting ~40%
Illustrative daily profile: solar peaks midday, while heating, hot water and appliance demand peak at dawn and dusk.
It's no longer an idea.It's on a home in Melbourne.
Our first home went live in Hawthorn this May: gas boiler gone, gas meter off the house, heating now running on stored solar. The second install is already in. Running totals across our installs, measured by the systems themselves. live
- Saved so far
- $1,426
- CO₂ avoided
- 1,497 kg
- Gas avoided
- 29,183 MJ
Measured against the gas heating it replaced, from the system's own counters, not a brochure figure. Your home's number is confirmed at your free site assessment.
Why we're building this
Thermal Dawn was selected for Startmate's 2026 cohort. Here's our founder making the case, to a room of investors and operators, for why Australian homes need thermal storage, not another imported battery.
Nick Zeniou, founder. Startmate Summer '26 Demo Day.
"We've been looking for 5 years for a hydronic heat pump, but we didn't want to pay $25,000. We finally did it."
Mike & Kay, Hawthorn
Designed for Australian conditions, built from Australian materials, and retrofittable to most homes.
No degrading batteries, no imported lithium.
The assessment is free and carries no obligation. Reserving takes a fully refundable $190 deposit, with nothing further owed until you approve your quote.
About us
At Thermal Dawn, we're building the infrastructure Australia needs to shift from imported lithium batteries to sovereign thermal systems that balance our grid, starting with your home. Our thermal batteries solve the problem imported lithium can't: capturing abundant dawn solar and storing it as heating, cooling, and hot water for the peak-demand hours when grid power costs the most.
Our systems are designed, built, and assembled in Australia, at our own production facility in Hornsby, New South Wales, from Australian materials, and built to last decades, not the few years before a lithium battery degrades. Thermal Dawn is supported by Cicada Innovations, EnergyLab, and the NSW Office of the Chief Scientist and Engineer, backed by an Investment NSW grant, and a member of the Startmate accelerator. This isn't imported technology we're reselling. It's the thermal infrastructure Australia needs, engineered by Australians who live here.