Archetype ‘ClearZero’ building demonstrates CPV products as key driver in the Race to Zero
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HIGHLIGHTS
- ClearVue has completed design of an Archetype model building of 15,000 m² to demonstrate how ClearVue product can achieve a Net Zero or Near Zero energy-use building
- Modelling was completed on a design in Toronto, Canada, benchmarked against the Toronto Green Standard (TGS) from 2030 - one of the world’s highest standards of building performance
- The 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
12 January 2022: Smart building materials company ClearVue Technologies Limited (ASX:CPV) (ClearVue or the Company) is pleased to announce the outcome of recent modelling work undertaken in the context of the global ‘Race to Zero’ in construction decarbonisation.
During the second half of calendar year 2021, ClearVue commissioned energy efficiency and sustainability specialists, Footprint[i] to develop an energy efficient archetype model office building named ‘ClearZero’ (the Archetype) to demonstrate how ClearVue’s world-leading window integrated photovoltaic products can be used to assist in the design of highly energy efficient, energy neutral buildings.
The objective for development of the ClearZero Archetype was to explore the energy performance of selected energy and design strategies to achieve a net zero energy building design using ClearVue product.
The Toronto Green Standard (TGS) is one of the toughest building standards in the world with building code requirements in relation to energy use and building thermal envelope stepping up in stages until 2030. The TGS for construction from 2030 onwards (V6 Tier 1) was used as the benchmark to assess the performance of the Archetype.
The ClearZero Archetype was shown to achieve the highest level of performance under that standard. Footprint confirmed that the modelled building would achieve an ENERGY STAR score of 99 out of 100, putting it in the top 1% of Canadian office buildings for energy performance if built to the Archetype design.
ClearVue’s patented solar glazing technology cuts heating and cooling costs, and improves building energy efficiency, by preventing unwanted solar radiation from entering a window and converting it into electricity using photovoltaic cells.
Integral to the Archetype design was the use of ClearVue’s advanced technology-based building integrated photovoltaic glazing solution across the total building design, and as the primary façade material for the Archetype, including the use of higher glazing to wall ratios on the facades with higher solar exposure.
Artists impression of ClearZero Archetype (front view).
The Archetype model is a 15,000m² six storey office building situated in Toronto, Ontario, Canada. The building 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 approximately 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.
Historically, windows and other fenestration are the weak link in a building’s thermal performance. Typically, current low carbon building designs have reduced window to wall ratios to comply with energy use and carbon emission targets.
ClearVue has achieved the 2030 TGS benchmarks all 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.
Artists impression of ClearZero Archetype (rear view).
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 currently 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 looks forward to updating the market once this further work has been completed. Further information on the Archetype is provided in the Annexure.
Victor Rosenberg, Executive Chairman of ClearVue, commenting on the Archetype modelling 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, 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.”
Authorised by the Board of ClearVue Technologies Limited.
FOR FURTHER INFORMATION, PLEASE CONTACT:
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ClearVue Technologies Limited Mr Victor Rosenberg Executive Chairman +61 8 9220 9020 |
Citadel-MAGNUS Michael Weir / Russell Quinn 0402 347 032 / 0403 322 097
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ABOUT CLEARVUE TECHNOLOGIES LIMITED
ClearVue Technologies Limited (ASX: CPV) is an Australian technology company that operates in the Building Integrated Photovoltaic (BPIV) sector which involves the integration of solar technology into building surfaces, specifically glass and building façades, to provide renewable energy. ClearVue has developed advanced glass technology that aims to preserve glass transparency to maintain building aesthetics whilst generating electricity.
ClearVue’s electricity generating glazing technology is strategically positioned to compliment and make more compelling, the increased use of energy-efficient windows now being regulated in response to global climate change and energy efficiency goals.
Solar PV cells are incorporated around the edges of an Insulated Glass Unit (IGU) used in windows and the lamination interlayer between the glass in the IGU incorporates ClearVue’s patented proprietary nano and micro particles, as well as its spectrally selective coating on the rear external surface of the IGU.
ClearVue’s window technology has application for use in the building and construction and agricultural industries (amongst others).
ClearVue has worked closely with leading experts from the Electron Science Research Institute, Edith Cowan University (ECU) in Perth, Western Australia to develop the technology.
To learn more please visit: www.clearvuepv.com">http://www.clearvuepv.com">www.clearvuepv.com
ABOUT FOOTPRINT
Footprint are leading sustainability specialists across a broad range of sustainability related disciplines. At Footprint, our goal is simple: how do we get to less? Less costs…less stress…less waste…these are achievements that truly make a difference for our clients, our colleagues, and, ultimately, the world.
Taking a more integrated approach to sustainability services, we work side-by-side with project teams, providing an informed perspective of sustainable opportunities and considerations for design and construction decisions.
Our goal is to act as a catalyst for balance – to ask the right questions and provide possible solutions that point in the right direction. How do we know what the right direction is? It’s always the direction that points toward less energy, less time, less impact, and more sustainable developments.
Our services include: Energy Modelling & Strategy, Performance Verification, Existing Building Optimization, Climate Change & Resilience, Sustainability Consulting & Certification, Commissioning and Building Wellness.
To learn more visit: http://sa-footprint.com/
FORWARD LOOKING STATEMENTS
Statements contained in this release, particularly those regarding possible or assumed future performance, revenue, costs, dividends, production levels or rates, prices or potential growth of ClearVue Technologies Limited, are, or may be, forward looking statements. Such statements relate to future events and expectations and, as such, involve known and unknown risks and uncertainties. Actual results and developments may differ materially from those expressed or implied by these forward-looking statements depending on a variety of factors.
[i] See ‘About Footprint’ on page 4.