High Performing Buildings - Spring 2008 - (Page 3) 62 All About Water 42 Old Is New Again 52 Back to the Grid Indian Springs Discovery Center The center allows visitors to view and experience the wetland ecosystem above the water, at the water, and below the water. The center showcases water resource management and natural ventilation. Between the free heating and cooling coils and energy recovery wheel, the building ventilation air is almost entirely preconditioned without having to use mechanical heating or cooling. Cambridge City Hall Annex In 1899, the press heralded this building as an example of innovation in ventilation, circulation and daylighting. More than a century later, the historic building has been renovated, merging historic preservation with sustainable design. Detailing, both inside and out, respects the original building design while daylighting and photovoltaic panels reduce energy consumption. 31 Tannery Project In one year, Ferreira Construction’s headquarters generated more electricity from renewable energy than it consumed from the grid. Even during a summer heat wave, the building sent surplus energy back to the grid while employees enjoyed an indoor temperature between 72°F and 74°F. The net zero electric commercial building features nine miles of radiant heat, high performance rooftop units, condensing boiler plant, solar photovoltaic system and solar domestic hot water. Winter 2008 HIGH PERFORMING BUILDINGS 3
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