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The glazing unit achieved a market-leading U-value of 0.58 and a 7.74°C lower internal surface temperature during peak heat compared to standard windows.
The U-value is a standard measure of insulation quality in windows, representing the temperature difference between the inside and outside panes.
A good U-value for windows typically falls between 0.20 and 1.6 watts per square metre Kelvin temperature (W/m²K), where lower values indicate better insulation and energy efficiency. Triple-glazed windows can achieve lower U-values, potentially below 0.8W/m²K.
The vacuum-insulated units also meet strict international fire safety standards, meaning they can be used in high-rise buildings and high-risk environments such as hospitals, schools and hotels.
Commenting on the successful trial, ClearVue interim global chief executive officer Douglas Hunt said: “These remarkable independently captured results demonstrate the significant impact ClearVue solar VIG can have on driving a sustainable built environment.”
Hunt said the outstanding results prove ClearVue’s solar glazing and its fully integrated solar façade could deliver significant energy savings and generate power, directly addressing the twin needs of sustainable building design and energy efficiency.
He added that short payback periods made deploying the company’s solutions a logical choice. “Combined with its existing fire testing results, the successful completion of this trial with the Hong Kong Government’s EMSD is a major validation of ClearVue’s technology,” he said.
Asian markets – particularly Hong Kong - are key targets for ClearVue. The company will be able to use the trial as a powerful, government-verified case study for architects, developers and building owners in the region.
ClearVue will also capitalise on the encouraging results by launching a Hong Kong subsidiary and establishing an R&D joint venture with LandVac, which has developed an advanced vacuum-insulated glazing product.
Earlier this month, ClearVue appointed Hunt as its new chief operating officer to serve as the company’s interim global CEO. With certifications in place, ClearVue is poised to accelerate commercialisation, leveraging its technology to transform glass buildings into solar PV arrays.
ClearVue’s solar façade is lighting the way to sustainable buildings, blending cutting-edge energy generation with safety and efficiency to redefine urban construction.
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