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Hannaford Grocery Store in Augusta, Maine.

  • COMPLETION DATE
    2009

Overview

Hannaford’s first LEED Platinum-certified supermarket opened in July 2009 comprising 48,000 square feet. Thornton Tomasetti provided consulting services directing green design features including daylighting, solar photovoltaic panels, geothermal heating and cooling, high-efficiency refrigeration, energy efficient lighting and an advanced recycling program.

As the owner’s sustainability representative and LEED consultant, the team recycled or reused 96% of demolition debris and 99% of the contents of the building from the previously developed site. More than 70% of the wood used in the store is FSC certified with many of the counters constructed of recycled materials. Interior daylighting is maximized through windows, a clerestory, skylights and solartubes. A 7,000-square-foot green roof reduces water runoff, increases biodiversity on the site, and helps insulate the store.

Hannaford uses 50% less energy than a typical grocery store. Reclaimed heat from the GreenChill refrigeration system meets almost 100% of the store’s heating needs. Two geothermal wells located 750 feet below ground regulate the store’s interior temperature along with a 41-kilowatt solar array providing on-site power.

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Concepts and Tools

Daylighting

Our team provides development and evaluation of preliminary sustainable daylighting c oncepts to determine how daylight comfort parameters can be enhanced. We use various daylighting modeling programs such as Daysim, Radiance and Ecotect to determine the daylight performance of complex façade systems. In addition, our simulation team is developing parametric modeling tools that use feedback loops to optimize shading, reflectances and geometries to achieve desired daylight levels. These tools help design teams reduce dependency on artificial lighting, improve spatial quality and reduce operational costs.