Location: , Winnipeg, Manitoba
gross area: 64,810 m2
Number of floors above ground: 23 (including penthouse)
Year of completion: 2008
Nominator: Manitoba Hydro
Architect: Kuwabara Payne McKenna Blumberg Architects (design architects)
Smith Carter Architects & Engineers (architects of record)
Prairie Architects Inc. (advocate architects)
Energy analysis: Transolar (Energy/Climate Engineers)
for full design team click here
Winnipeg is the coldest city in the world with a
population over 500,000 inhabitants. It is also
the sunniest location in Canada and boasts the hottest,
most humid summers supported by the highest air
conditioner use per capita. Temperatures vary 70°C
over a year, plummeting well below -35°C in the
winter, and soaring well above 35°C in the summer.More
about climate- pdf 1.7Mb
new 64,800 m² headquarters for Manitoba Hydro is
located in downtown Winnipeg. As the 4th largest
electrical utility in Canada, the design of the new
building had to demonstrate a commitment to energy
efficiency and carbon emission reduction. A primary
goal was to achieve 60% reduction below national
energy standards for consumption.
Integrated Design Process (IDP) was used to ensure
the seamless fusion of the full array of goals in a
holistic building solution, inclusive of design excellence,
energy performance, cost effectiveness, sustainability
(targetting LEED Platinum), supportive and healthy
workplace, and urban revitalization
more about the IDP
Document pdf 3.9 Mb
MIPM Architectural Review Awards - Commended for Innovation
Canadian Architect Award of Excellence
targets a 60% reduction compared to the Canadian
Model National Energy Code for Buildings (MNECB).
Current energy modelling suggests building will
exceed a 64.5% reduction from the MNECB
design acts as a positive stimulus to downtown Winnipeg
by consolidating 2000+ employees from 12 leased offices
in the suburbs into one central downtown location.
building’s podium base
is scaled to relate to the street, with a number
of leasable spaces for retail and business creating
an active ground plane.
to the city’s
elevated path (Skywalk) system at Level 2 facilitates
access for employees to downtown amenities.
diagonal, interior public route creates a sheltered
walkway through the site, as well as a space for
gatherings, special events, and exhibitions.
the north entrance a south and exterior ‘civic landscape’ creates an
inviting and accessible public realm to reinforcing
positive connections to the city. A landscaped courtyard
and park facing Graham Avenue at the south entrance
enhances the pedestrian environment and generates
relocation of 2000 staff from various suburban locations
into the downtown office required a cultural shift
focusing on building community and promoting collaboration
and teamwork. To that end the workspace strategy
is based on an open concept, with an 80/20 open/private
ratio of space. Open workstations are limited to
1.25m tall system partitions (a significant departure
from the former 1.8m high cubicles)
plan creates a symbiotic relationship between the
building’s respiratory system (north
and south atria) and the organizing principle of vertical neighbourhoods
to encourage communication, provide clear orientation, and to
build community in the high rise tower. The typical net floor
area of 1850m² is divided into smaller precincts organized around
a series of stacked atria. The atria are connected by stairs
to encourage vertical circulation and to maximize face-to-face
communication and collaboration between people and departments.
spaces are limited to selected meeting rooms and
private offices for information sensitive activities,
such as accounting, legal, human resources, and executive
spaces. All enclosed spaces have 2.45m demountable
partitions with solid sides, glazed faces and glass
transoms ensuring daylight penetration.
controlled automated shading and interior operable
facade vents enable occupant well being.
heating and cooling delivered to the office spaces,
via the exposed overhead concrete slab, maintain
consistent temperatures year round while the high
thermal mass prevents apparent peak temperature loads
for the occupants.
occupies a full city block, its form and massing
generated primarily by solar orientation. Two towers
converge at the north and splay open to the south
to capture strong prevailing south winds and sunlight.
North and south stacked atria fuse the masses together
at each end and function as solar collectors, air
exchangers, handlers and shafts. Prevailing winds
that create gusting downdrafts are tamed by large
canopies at the ground plane, particularly at the
south grove. An interior street connects north and
Terraces located on the 2nd floor of the podium are
oriented to enhance daylighting into the podium office
form and orientation optimizes passive systems for
ventilation, heating and cooling in three climatic
modes: winter, summer and intermediary (shoulder)
solar exposure and minimized north facade area take
advantage of the sun’s passive warming effect on air as it moves through
the south atria in the winter months and reducing thermal loss
through the north side of the building
heating and cooling combined with natural ventilation
(driven by stack effect at the solar chimney) minimizes
the need for a typical ‘forced air’ circulation system.
geothermal heat pump system utilizes ground heat
exchange — in winter, extracting heat from the ground to heat
the building; in summer, the building is cooled, returning the
heat extracted in the winter to the ground. 100% of cooling load
and 50% of heating load is covered by this system.
Air Quality and Displacement Ventilation
fresh air year round is achieved by first drawing
air into the 6-storey south atrium. There it is preconditioned
by a water feature (tensioned
mylar ribbons with conditioned water running down
each strand to humidify ambient fresh air in winter
and dehumidify in summer) before being drawn into
the office’s raised access floors.
and six story atria, located throughout the tower,
function as solar collectors, air exchangers, air
handlers, and air shafts for the building’s ventilation system.
o south and north atriums act as lungs providing natural
displacement ventilation via a raised floor:
air is supplied to the building via raised floors
and is exhausted passively, via stack effect, by
the solar chimney.
envelope is a very high performing
all glass unitized curtainwall assembly. The glass
insulating units optimize daylight transmission (68%
min) while effectively maintaining a triple glazed
assembly. Overall air leakage rates are also minimized
to enhance performance with target values of 0.20m³/h/m (at150Pa) of linear joint length. Mock-up testing
reveal actual performance values of 0.02m³/h/m (at 150Pa), exceeding
performance targets ten-fold.
stone assemblies on the podium, maintain the remaining
facade at maximum U values of 0.227 W/m²K
Roof and inverted roof assemblies further enhance
performance of the building by providing maximum
U values of 0.162 W/m²K.
and Lighting Controls
daylight is utilized throughout the building’s
occupiable spaces, to enrich user comfort and reduce
lighting controls and dimming along with automated
shading further optimize the interior environment
by actively reducing Solar Heat Gain and glare.
frit coating on the south face of the tower lofts
further passively reduces initial heat gain
free roller shade fabric with a metallised exterior
face aid in the performance of the shading systems.
of Local Materials
and materials extracted and manufactured regionally
are incorporated where appropriate, and include;
quarried Tyndall stone exterior cladding.
utilized in the foundations, structural frame, landscape
and pre-cast elements consists primarily of locally
sourced aggregates and sand.
- Glass for the unitised curtainwall was sourced locally
and prefabrication of panels was done at a dedicated
local facility by the manufacturer.
and materials resource from deconstruction
and demolition of existing structures, and not designated
for reuse in the new building, were sold on site
to the public, reused in original condition at
other projects offsite, or processed for recycling.
growth Douglas Fir lumber, salvaged from deconstructed
site buildings, was milled and reused as soffit
cladding at feature elements of the building.
primary materials of construction, for both base
building and fit-up work, were specified to incorporate
high-levels of recycled and / or natural materials
utilized in the primary structural frame and foundation
caissons incorporates a minimum of 30% supplementary
cementitious material (fly-ash) to reduce Portland
steel incorporates over 90% recycled materials.
steel includes nearly 100% recycled content.
cladding includes nearly 70% recycled content.
aluminum cladding includes 40% recycled content.
curtainwall framing includes a minimum of 25% recycled
wood in millwork and partitions includes 60% recycled
panels of recycled cotton.
tiles include 25% recycled content.
partition system includes 40% recycled content.
tile containing recycled content.
buildings on site were deconstructed and selectively
demolished in order to maximize material reuse and
product and material reuse and recycling opportunities
were researched and specified in demolition tender
documents in order to ensure maximum diversion
of materials from landfill.
formal construction waste management plan was developed
and implemented during both the deconstruction /
demolition and construction phases of work.
including cardboard, metals, concrete, brick, asphalt,
clean dimensional wood, plastic, glass, beverage
containers, and gypsum board are required to be
reused or recycled.
exceptionally high percentage of materials, over
90% by weight, were diverted from landfills.
installed within the interior of the building contain
low or no volatile organic compounds minimizing off-gassing
to ensure excellent indoor air quality.
sealants and sealant primers comply with VOC content
limits of the State
of California’s South Coast Air Quality Management District.
coatings and primers comply with VOC content limits
of Green Seal and State of California’s South Coast Air
Quality Management District Standards.
complies with VOC limits of the Carpet and Rug Institute’s Green Label Indoor
Air Quality Test Program.
wood and laminate adhesive products contain no added
urinals and dual flush toilets minimize water use
throughout the building.
Roof assemblies aid in storm water retention, reducing
strain on the city infrastructure.
order to further reduce water consumption, a non-potable
irrigation system was designed to irrigate the green
roofs as well as the vegetation at street level.
The water for this irrigation system is gathered
from the condensate from the fan coils in the building
and collected in a collection tank in the parkade.
This water is then used to irrigate the landscaping.
Recycling & Waste Management
services are contracted by Manitoba Hydro to handle
recyclable (both confidential and non-confidential
documents) and waste materials in the building according
to LEED Gold standards.
desk, resource room, coffee bar will have designated
containers for recycling; these are emptied on a
per-determined schedule and delivered to recycling
area managed by the service. Service will sort and
remove all glass, cans, plastics, paper, and cardboard
Waste Management Area includes waste compactor for
materials: Materials such as batteries, spray cans
etc. will be collected in designated bins and dropped
off as required at the Waverly Service Centre for
destruction and disposal.
Cartridges will be sent back to provider for refill.
prius (hybrid) vehicles for staff use
60 pool and fleet vehicles downtown, split between
the Manitoba Hydro 360 Portage lot and a CityPlace
lot (approximately 15 of the 60 will be in the lot
at 360 Portage)
will receive a downtown location allowance which
they can put toward a 'free' bus pass if desired
o free company shuttle to transport people between
360 Portage and 820 Taylor throughout the work day
concert with Winnipeg Transit there will be a 200
vehicle park and ride at the 820 Taylor parking lot.
Winnipeg Transit will operate a direct express route
from 820 Taylor to 360 Portage. Excess parking spots
not utilized by Hydro staff will be sold to the public.
storage for 100 bikes within the building’s parkade, as well bike racks
at grade, encourage (with shower facilities on the second floor)
healthy alternatives to motorized transit.
project provides a viable, repeatable model for realizing
a broad set of ambitions and objectives using the Integrated
Design Process to achieve 60% energy
efficiency, deliver a supportive workplace environment,
catalyse urban revitalization, demonstrate environmental
sensitivity, and balance competitive cost with design
excellence within a seamless, high performance building
solution. It is also an exemplar for optimizing extreme
climate conditions for passive energy. Maximum flexibility
in terms of floorplate, column-free spaces, raised
floors and absence of ductwork will also greatly
facilitate change management initiatives. Emphasis
on quality of construction and enduring materials
reinforces a commitment to enduring value as a form
information about Manitoba Hydro project:
From Google Sketchup