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Manitoba Hydro Place is the headquarters building of Manitoba Hydro, the electric power and natural gas utility in the province of Manitoba, Canada. Located at 360 Portage Avenue in downtown Winnipeg and connected to the Winnipeg Walkway system, Manitoba Hydro Place received LEED Platinum certification in May 2012, making it the most energy efficient office tower in North America and the only office tower in Canada to receive the LEED Platinum rating.〔(【引用サイトリンク】 publisher = Manitoba Hydro )〕 Opened as Winnipeg's 4th tallest building in September 2009,〔(【引用サイトリンク】 publisher = Architectural Record, July 2010 )〕 the 21-story office tower brought together 1650 employees〔(【引用サイトリンク】 publisher = Winnipeg Free Press, 9-30-2009, Geoff Kirbyson )〕 from 15 suburban locations〔(【引用サイトリンク】 publisher = American Institute of Architects )〕 into one highrise on a full, downtown block. With the design's plan view resembling a capital letter ''"A"'', the project comprises two 18-story twin wings framing three 6-story, south-facing atria (winter gardens). The design's stepped, three-story, street-scaled podium〔 contains retail space as well as an interior pedestrian street and a single level of parking, partially below grade — over which sit the atria, office wings and their 3-story mechanical penthouse.〔(【引用サイトリンク】 publisher = KPMB Architects )〕 Total project cost was C$278m.〔(【引用サイトリンク】 publisher = Designbuild-network.com )〕 The building's bioclimatic, energy-efficient design features a tall solar chimney, a geo-thermal HVAC system using 280 five-inch tubes bored 380 feet into an underground aquifer,〔 100% fresh air (24 hours a day, year round, regardless of outside temperature)〔 and a one-meter-wide double exterior wall with computer-controlled motorized vents that adjust the building's exterior skin throughout the day and evening. Together, the various elements of the design enable a 70% energy savings over a typical large office tower. 〔(【引用サイトリンク】 publisher = Council on Tall Buildings and Habitat )〕 In 2009, CBC News called Manitoba Hydro Place (MHP) one of "the most energy-efficient office towers in the world〔 and the ''Toronto Star'' called MHP the "most important building in Canada."〔(【引用サイトリンク】 publisher = Toronto Star, December 19, 2009, Christopher Hume )〕 ==Background and design process== Construction of a downtown headquarters building was integral to the 2002 purchase agreement between Manitoba Hydro and the City of Winnipeg for purchase of the formerly city-owned electric utility, Winnipeg Hydro.〔(【引用サイトリンク】 publisher = 26th Conference on Passive and Low Energy Architecture, Quebec City, Canada, 22–24 June 2009 )〕 Manitoba Hydro representatives toured to Europe to identify examples of energy efficient design a year prior to beginning the architect selection process.〔 Subsequently, the company assembled an integrated design team including members from the corporation itself along with the design architects, the architects of record, energy engineers, building system engineers, cost estimators, and project contractors — selecting the Design Architect first:〔 Kuwabara Payne McKenna Blumberg Architects of Toronto. Smith Carter Architects of Winnipeg was the Architect of Record. By December 2003, the design team had selected the final site,〔 and by 2004, Manitoba Hydro unveiled a series of design concepts for the building,〔 having created a design brief for the building: The brief was developed into a project charter defining the projects core principles and against which design concepts would be measured: that it would be flexible and adaptable to new technology and workplace changes,〔 offer world-class energy efficiency,〔 offer a signature design to enhance the image of the company and the city,〔 help strengthen the city downtown,〔 and be a solid financial investment.〔 The company committed one year to developing the building concept, using another year to ensure the concept integrated the key elements, including architectural, structural, energy performance, cost, constructability, and LEED factors. Sixteen alternatives were developed, subsequently reduced to three options from which the final concept was selected.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Manitoba Hydro Place」の詳細全文を読む スポンサード リンク
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