Project Name

AdvancED® Global Headquarters

Project Location

Alpharetta, Georgia

Project Team

Owner: AdvancED

General Contractor: JE Dunn

Engineer: McKenney’s, Inc.

Specializations

LEED Certification

MarketsCommercial Offices

Design/Build

Building Information Modeling

McKenney’s helped AdvancED—the world’s largest school accrediting agency—earn LEED® Gold certification with an innovative rainwater and condensate collection system that harvests water for irrigation and coolsthe air conditioning system’s coils.

The ChallengeThough irrigation is typically the first consideration for rainwater use, energy conservation was also a top priority for AdvancED as it pursued LEED certification for its new 60,000-square-foot global headquarters.

The SolutionThe McKenney’s team recommended and installed packaged rooftop air conditioning systems that use evaporative cooling on the condenser coils. Rainwater from the cistern was filtered and pumped to the rooftop units. McKenney’s modified the rooftop units to use the water by spraying it on the condenser coils, which significantly reduced energy use.

The content of this document is not intended as an endorsement.

The ResultsUsing spray coils—versus a traditional HVAC installation—helped bump AdvancED to LEED Gold certification while redirecting $200,000 to other project aspects. AdvancED is now in an elite league of only three Georgia facilities with this type of rainwater harvesting system.

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