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ClearVue Technologies Ltd’s archetype model building using CPV products achieves net-zero or near-zero energy-use building

The modelling was completed on a design in Toronto, Canada, and benchmarked against the Toronto Green Standard (TGS) from 2030 – one of the world’s highest standards of building performance.

ClearVue Technologies Ltd (ASX:CPV, OTCQB:CVUEF) said its completed archetype model building demonstrated how its product could achieve a net-zero or near-zero energy-use building. 

The modelling was completed on a design in Toronto, Canada, and benchmarked against the Toronto Green Standard (TGS) from 2030 – one of the world’s highest standards of building performance. 

This archetype was shown to achieve the highest level of performance under the TGS from 2030 (V6 Tier 1) and an Energy Star score in the top 1% of Canadian office buildings for energy performance.

The archetype – a computer simulation and detailed thermal model – will support ClearVue’s sales teams when engaging with architects and engineers seeking to design net-zero buildings.

This has seen the company shares rise by more than 23% to A$0.345 intraday. 

Key sales tool

ClearVue executive chairman Victor Rosenberg said: “Architects and façade engineers the world over are now coming up against ever harder code requirements for energy-efficient building design in response to the Climate Crisis.

“The archetype will be used by ClearVue as a key sales tool and educational resource when dealing with these architects and engineers, as well as developers and builders.

“The developed archetype model clearly shows how the ClearVue PV product can play a significant role in the design of net-zero and near-zero energy buildings of the very near future.

“The ClearVue PV glazing through its energy efficiency and energy generation offers a solution for these architects, engineers and developers struggling with how to design buildings to meet these new codes while maintaining expansive views and maximising building daylighting.

“The archetype we have developed sets out a very clear and compelling template for how a building can be designed that already meets the most stringent standards for 2030 building energy use targets now, and importantly it shows how 2050 net-zero energy targets can also very easily be met using ClearVue’s products in conjunction with other readily available construction materials.”

Archetype model details

The archetype model is a 15,000 square metres, six-story office building, which is slightly elongated along the east-west axis for improved solar exposure in its Northern hemisphere location.

The building is envisioned with low carbon construction assemblies including mass timber and reduced concrete use.

Opaque envelope components included a high thermal performance roof and good wall thermal resistance including thermal bridging.

The glazing was modelled in accordance with ClearVue’s photovoltaic tripled glazed IGU (or TGU) specifications with the triple glazing giving excellent fenestration thermal performance in the modelling.

The archetype demonstrates the energy performance of a low-carbon energy-efficient design along with the renewable energy generation of the on-site photovoltaic arrays in the form of ClearVue’s PV glazing across all glazed surfaces – and 50% of the roof area of the building covered with a typical roof-mounted PV array – together delivering about 40% of the energy needs for the building during its in-use phase.

Net-zero energy use was also shown to be easily achieved by covering only 37% of the mandated car parking spaces for a building of the archetype’s size and scale with additional roof-based PV.

ClearVue has achieved the 2030 TGS benchmarks while maintaining window to wall ratios on the building elevations of 90% on the south, 70% east, 70% west and 40% north.

These high fenestration ratios mean more natural light is available to end-users of the building – a key factor in the movement towards ‘building wellness’ design – all without compromising on the carbon footprint of the building.

Life-cycle assessment

The current archetype modelling is restricted to the ‘in-use’ phase of the building (operational phase).

Work on the life cycle assessment of the ClearVue PV IGU product is underway which will be used to produce an environmental product declaration or EPD for the ClearVue products.

This information will then be fed back into the modelling for the archetype to have a complete understanding of the carbon footprint and carbon payback for the whole building (construction phase).

The company will update the market once this further work has been completed.

Read More: ClearVue Technologies Ltd’s archetype model building using CPV products achieves net-zero or near-zero energy-use building

2022-01-11 18:57:00

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