Manitoba Hydro Place

Manitoba Hydro Place is the headquarters building of Manitoba Hydro, the electric power and natural gas utility in the province of Manitoba, Canada — and is located at 360 Portage Avenue, downtown Winnipeg.

Opened as Winnipeg's 4th tallest building in September 2009, the 21-story office tower brought together 1650 employees from 15 suburban locations into one 695,000 sq ft (64,568 m2) 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. Total project cost was C$278m.

The building's bioclimatic, energy-efficient design features a 377 ft (115 m) 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 60% energy savings over a typical large office tower.

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."