Narrative:
The building uses the constant temperature of seawater for the heat-pump system to cool it during the warmer months and heat it during the cooler months. In summer, the seawater provides a low-temperature condensing medium, resulting in low kW/ton energy requirements. In winter, the heat pump cools the seawater and rejects the heat to the building for heating. In intermediate weather, direct seawater cooling will cool the building.
The heat pumps are electrically driven. Electricity in British Columbia has a very low greenhouse gas signature. Heat recovery is provided for major ventilation systems to reduce the need for heat. A low-pressure fan system reduces fan energy required. Radiant heating and cooling are provided in the exhibition halls and the pre-function areas, allowing a reduction in the size of the ventilation systems.
Daylighting sensors and lighting occupancy sensors reduce the lighting loads.
Low-flow lavatories throughout the facility reduce the domestic hot water load. The project includes a blackwater treatment and reuse system and stormwater management and harvesting. It generates much of its water supply off the public utility grid.
The six-acre living roof provides natural habitat and an extensive permeable surface for absorbing rainwater and slowing storm water runoff.
See Supplemental Narrative for Modeling and Energy Performance Information.
Metrics:
Total EUI:
35kBtu/sf/yr
Net EUI:
35kBtu/sf/yr
Energy Flows & Future Energy
source: http://www.aiatopten.org