The Metropolitan Nashville Airport Authority's (MNAA) sustainability mission is to sustain the heartbeat of the Mid-South by cherishing its resources and ensuring that Music City keeps flying high.
In 2010, Nashville International Airport (BNA) was selected by the FAA as one of 10 airports across the U.S. to participate in the Sustainable Master Plan Pilot Program. Planning to operate in a sustainable manner requires a long-term, integrated and comprehensive process which considers the airport’s impact on the natural world, the surrounding community and the regional economy.
In October 2012, MNAA leaders completed BNA’s first Sustainability Plan and will use this working document to expand MNAA’s sustainability efforts and deepen a culture of environmental stewardship over the long term. Read the highlights here: Nashville International Airport Sustainability Study Highlights (PDF).
What are we doing now?
1. Incorporating sustainable practices into construction. As part of MNAA’s sustainability efforts, 88 percent of the 8,209 tons of debris from the Zayre Building demolition was repurposed or recycled.
2. The three-story green screen at our Consolidated Rental Car Facility, which was planted during the fall of 2011, continues to grow and was in bloom in the spring of 2013.
3. As part of MNAA’s Wellness on Wings program, walking distance maps are being displayed throughout the terminal building to share with our employees, business partners and customers to promote health and fitness. Click here for the Walking Distance Map (PDF).
4. MNAA recently completed two phases of lighting improvements. Replacement of more than 12,500 fixtures and recycling of more than 14,000 bulbs and 16,000 ballasts. Energy consumption reduced
by almost 6 million kWh – a savings of more than $600,000 annually.
5. MNAA was recently awarded a $181,250 Clean Tennessee Energy grant from the Tennessee Department of Environment and Conservation. The grant will be utilized for construction of a solar array canopy parking structure that will service at least three new electric vehicle charging stations. Excess power will supply nearby parking lot lighting which will be retrofitted with LED technology. Rainfall runoff from the canopy array will be captured and stored for the purpose of irrigating adjacent landscaping.
6. MNAA recently kicked off the first phase of our Improve Stormwater Collection and Treatment System project. This two-phase project will incorporate $7 million worth of improvements. The program will first divert clean stormwater away from the treatment system to Sims Branch, a nearby stream. New aeration, the addition of a clarifier and state-of-the-art monitoring and controls will improve the effectiveness and efficiency of our treatment systems.
7. MNAA is currently evaluating the potential of reusing stormwater runoff currently collected in a 43 acre, 150 feet deep on average, detention basin. In concept, the cool, constant temperature basin water would be routed through a closed loop system to supplement our chilled water plant year round. Existing cooling towers would no longer be needed. In addition, heat produced by the chillers would offset boiler use. Because there are less moving parts, life cycle costs are lower. The stormwater could also be reused for irrigation purposes.