If all Australian homes had rooftop solar and battery systems installed, the nation could be saving more than $26 billion in annual electricity bills, according to new research released today. 

 

The Australian Rooftop Valuation Report, published alongside the official launch of AI-powered platform GreenSketch, finds the typical Sydney rooftop could generate approximately $50,000 in returns across 20 years, yet most homeowners have no straightforward way to measure or unlock that potential. 

 

With energy prices on the rise and solar and battery adoption accelerating, rooftops are emerging as measurable financial assets rather than potential upgrades. 

 

Richard Cameron, Country Manager at GreenSketch said: "Australia's rooftops represent a form of distributed energy infrastructure that has been lying in plain sight. We have one of the highest rates of residential solar adoption in the world, yet most homeowners have no way to measure what their roof is actually worth or how to maximise that value. This research quantifies that hidden value – around $50,000 for the typical Sydney home over 20 years and billions of dollars collectively across the country." 

 

GreenSketch's platform, launching today in Australia, uses advanced mapping, satellite imagery and energy modelling to assess the solar and battery potential of individual properties and estimate financial returns from rooftop energy systems. 

 

This is enabled by Emily, an AI agent that automates what previously required multiple site visits, analysing rooftops and generating tailored system designs in seconds. 

 

Damien Allen, General Manager at LIV Energy said this new technology from GreenSketch was transforming how he worked: “GreenSketch makes it much easier for us to present a solar system clearly to customers. The proposal design helps explain the financial benefits and overall value, which is important when people are making a big investment in their home or business. On top of that, the support from the GreenSketch team has been excellent, which makes a real difference when you are running projects day to day.”  

 

James Infante, a homeowner in Seddon, Melbourne, tried GreenSketch when considering solar options for his home: “Of all the proposals I looked at, I found this one the easiest to follow and the clearest in terms of the material that I needed to understand to make a decision. The proposal was very detailed, its graphics were easy to follow, and the layout in terms of where the panels would be situated on the roof as well as where all the other components needed to go was clear.”  

 

The Australian Rooftop Valuation Report and the Emily AI platform are now available via greensketch.ai,  providing households and installers with new tools to assess and unlock the value of rooftop energy. GreenSketch is set to scale the global reach of its market intelligence and installer platform offerings in 2026, tailoring the Rooftop Valuation Report’s methodology and Emily for additional countries. 

 

“Until now, there has been no standardised way to value a home’s rooftop energy infrastructure. We can tell you what any house is worth, but not what the roof itself is worth. GreenSketch and Emily solve that by making rooftop value visible and measurable across millions of properties, we are creating the system of record for Australia's distributed energy economy," said Cameron.