Scott Subaru – Car Dealership

by Stephen Quinn
/
2021-03-26 14:45:32
/
International
/
2874 / EN

New Construction

Building Type : Other commercial buildings
Construction Year : 2017
Delivery year : 2019
Address 1 - street : 6863 50 Ave T4N 4E2 RED DEER, Canada
Climate zone : [Dfb] Humid Continental Mild Summer, Wet All Year

Net Floor Area : 1 542 m² Other
Number of Visitor : 3 Visitor

Proposed by :

Certifications :

Primary energy need :
144 kWhpe/m².year
(Calculation method : Other )

Energy consumption

Economical buildingBuilding

< 50A

51 à 90B

91 à 150C

151 à 230D

231 à 330E

331 à 450F

> 450G

Energy-intensive building

The world’s first certified Passive House Car Dealership was developed by a car dealership-family with an eye on long-term value. The owner sought a low impact building that would support his growing business. He readily admits that he’s not an avid environmentalist but recognizes the myriad benefits of constructing to the Passive House Building Standard. However, a key requirement was that any decisions made in pursuit of Passive House certification were not permitted to compromise customer or vehicle service in any way.

The intent was not only to reduce the energy consumption of the building but also to greatly increase the comfort and health for all occupants of the building, staff and customers alike. One of the main driving concepts was to create a building that would serve as an example of what is possible and encourage the wider market to adapt to constructing to the Passive House standard.

The harsh climatic conditions, site characteristics, and strict client requirements proved extremely challenging, demanding tremendous efforts from the entire design and construction team.

See more details about this project

https://passivehouse-database.org/index.php?lang=en#d_6210

Photo credit

Scott Subaru

Contractor

Name : Black Creek Developments Inc.

Contact : https://blackcreekdevelopments.com/project-inquiries

https://blackcreekdevelopments.com/

Construction Manager

Name : Black Creek Developments Inc.

Stakeholders

Function : Company

Scott Subaru

https://www.scottsubaru.com/

Energy consumption

Primary energy need : 144,00 kWhpe/m².year
Primary energy need for standard building : 400,00 kWhpe/m².year

Calculation method : Other

Breakdown for energy consumption : Space Heating demand: 11KWh/m2.a Space Cooling demand: 4KWh/m2.a Lighting demand: 8KWh/m2.a PHPP standard

Envelope performance

Envelope U-Value : 0,08 W.m^-2.K^-1

More information :

The wall and roof assemblies are of timber construction and insulated with cellulose, deviating from the steel frame construction of typical car dealerships. Cellulose insulation provides several environmental benefits including reduction of solid waste and conservation of fuel due to its low embodied energy. Cellulose insulation consists of 80% or more post-consumer recycled wastepaper, which makes it one of the highest recycled content insulation materials on the market. More generally, the Passive House envelope ensures a highly durable, long-life building.

Indicator : EN 13829 - n50 » (en 1/h-1)

Air Tightness Value : 0,40

More information

The Passive House envelope and ventilation systems ensure minimal heat loss from the building and deliver unparallel levels of occupant comfort. The internal heat gains and passive solar gains provide the majority of the building’s heating requirements. The remainder is provided through efficient ducted split-unit air source heat pumps. The small demand for hot water in the showroom/office space is provided by a CO2-based heat pump. The car wash bay requires considerably more DHW at a high flowrate, requiring an on-demand gas water heater. To reduce gas demand, the team collaborated with a drain water heat recovery system manufacturer to develop a custom unit. To further conserve energy, the all LED lighting system has integrated motion detectors throughout the building, ensuring areas are only lit when in use. The building’s projected annual energy demand is an impressive 69KWh/m2, which directly lowers pollution in a province with a high carbon electricity grid. All services except the car wash are electric. In a natural gas shortage, car washing could be completed using cold water. Should the power grid go down, the Passive House envelope ensures the building will never freeze.

Real final energy consumption

Final Energy : 144,00 kWhfe/m².year

Systems

Heating system :

Heat pump
Electric heater

Hot water system :

Gas boiler
Heat pump

Cooling system :

Fan coil

Ventilation system :

Double flow heat exchanger

Renewable systems :

Heat pump

Other information on HVAC :

A constant supply of fresh air is provided to all occupied spaces through ERV systems. In line with Passive House guidelines, the office space has an hourly air change rate of 0.3ACH, and repair shop 0.4 ACH.

Urban environment

The site was chosen due to its proximity to the old car dealership this building was replacing. The site has ample parking spaces and is close to a main highway. The site is also reachable using public transit links with a bus stop within walking distance.

Construction and exploitation costs

Additional information on costs :

The stakeholders do not wish to display the costs of this building.

Reasons for participating in the competition(s)

This building is the first of its kind to be certified to the rigorous International Passive House Standard. Not only will the stronger building construction last longer than a traditional dealership, but the energy-efficient features are expected to reduce the building’s heating and cooling demand by 90 per cent.

The project combines an unprecedented set of challenges: strict corporate design guidelines; non-negotiable client requirements (Passive House could not compromise customer or vehicle service in any way); worst case solar exposure (highly glazed West façade); building airtightness associated with accessibility (overhead doors) for vehicles; and the demanding ventilation requirements associated with the service wing of the building.

Addressing this unique combination of challenges while delivering unparalleled comfort and air quality in a car dealership defines a truly ground-breaking project that places it in a league of its own. It is a beacon project that demonstrates what is possible for future car dealerships around the world.