Recent independent, third-party testing of ClearVue Technologies Ltd (ASX:CPV, OTCQB:CVUEF)’s second generation photovoltaic insulated glazing units (Gen-2 PV IGU) system has verified its real-world performance benefits for tropical climates, including significant energy generation, efficiency savings and carbon benefits.
The Singapore Building and Construction Authority (BCA) — the main independent regulatory authority in the region — conducted the comparative testing through its Skylab facility, evaluating ClearVue’s second generation photovoltaic insulated glazing units (Gen-2 PV IGU) system and also testing its Spandrel Solution.
The BCA conducted comparative testing of ClearVue’s high energy-output clear solar glass technology Gen-2 PV IGUs against BCA’s ‘Greenmark Platinum’ rated double-glazed low-e product.
It found that ClearVue’s PV high energy-output clear solar glass technology reduced cooling load by 22.8% and overall energy savings by 7.5%, after accounting for energy generation.
The technology also improved thermal comfort for building occupants 96.1% of the time and reduced imperceptible glare by 75.2% — considerably above control cell levels. Further, when the Gen-2 IGUs are used in conjunction with the Spandrel Solution energy savings of 71% can be achieved.
A range of metrics were measured under real-world, southwest monsoon season weather conditions in Singapore over a four-week period ending in August to evaluate the energy savings and comfort benefits provided by the triple glazed Gen-2 PV IGU technology.
The results confirm the suitability and significant paybacks that ClearVue PVs can provide to building owners and developers across Southeast Asia and beyond. Like ClearVue’s first generation IGU product, the second generation integrates solar cells directly into windows to generate electricity while improving a building’s energy efficiency.
ClearVue CEO Martin Deil said: "The BCA SkyLab results validate ClearVue PV as an outstanding integrated product that delivers strong thermal and energy outcomes. The test data proves our technology's ability to simultaneously cut costs and enhance occupant comfort in the tropics by reducing solar heat gain.
"We are thrilled the benefits of the Gen-2 PV IGU products have once again been confirmed. Excitingly, the technology is expected to deliver even better energy performance in more favourable climatic zones and we anticipate improved carbon outcomes in cities with higher grid emission factors, providing greater potential CO2 savings and accelerated carbon payback from ClearVue’s PV IGUs.
“BCA’s comprehensive testing program clearly shows the advantages our PV glazing technology provides - as both an energy generator and passive design solution. This is not only good for the environment but will help companies meet the increasing pressure on the building sector to reduce their carbon footprint to meet clean energy targets and current and incoming sustainability mandates.
“ClearVue’s building envelope solutions can meaningfully improve the sustainability and efficiency of new and existing buildings.”