Background 5th & Main was envisioned as part of the new face of East Nashville. Within sight of the Titans’ LP Field and just blocks from the hip bars and restaurants of Five Points, the sleek, modern condo development began construction in 2007 with 120 condo units, commercial offices, and ground-floor restaurant and retail space. The project was also designed as a showcase for a sustainable mix of market rate and affordable housing.
Results Wilmot partnered with The Home Company, EOA Architects, and Solomon Builders to consult on all facets of the project’s construction. As the sustainability expert on the project team, Wilmot was also asked to design the project’s residential recycling program.
Wilmot is one of the few consultants nationally that works as a LEED Coordinator with general contractors to take responsibility for the LEED certification process including design reviews, documentation, verification, submittals, on-site recycling, and education.
Facing a unique public-private partnership to develop market rate housing city-owned land and a city mandate to achieve LEED Silver certification, SWH Residential hired Wilmot Inc to lead the green building effort at Terra House, a mixed-use project in Nashville's Rolling Mill Hill area.
Housing units were modeled and designed to save residents at least 20% on their monthly energy and water bills compared to conventional construction. Commercial spaces will be leased to local retailers to attract neighbors either walking or driving to the location. Wilmot recommended several high performance solutions including high efficiency lighting and a “green screen” on the garage façade. Terra House returned some of its development footprint for community green space. Lastly, Wilmot encouraged design elements and a marketing effort targeting the livability concerns of both families with young children and the Baby Boomer “renter by choice” market. Terra House achieved LEED Gold Certification in 2016 at no additional cost over the LEED Silver budget.
Centennial Park Master Plan
Background In 2008 the Centennial Park Master Plan Committee was created and charged by Mayor Karl Dean with revitalizing the city park. The Committee’s mission: to create a long range plan that acknowledges past and future simultaneously, respecting the tradition of Centennial Park as a showcase for Nashville's culture, arts and history, while transforming the park into a model of sustainable ecological practice and horticultural excellence.
Results The Wilmot team led the effort to gain public input and support for the park’s new master plan. Suggestions found in the master plan draft include a new amphitheater with a direct view of the Tennessee State Capitol building, a reflecting pool west of the Parthenon, a winter garden equipped to grow vegetation indoors, a vibrant show of cherry blossoms to the Parthenon’s northeast, new grass on the park’s main lawn designed to remain sturdy during events with heavy traffic, and a “land bridge” over 31st Avenue that would unite two of Metro’s dog parks with Centennial Park. Wilmot developed and conducted surveys, public meetings, data collection, survey analysis, and presentations to inform the design team and Committee on community desires.
Fort Campbell Army Base
Background Prior to Wilmot Inc.’s involvement, all of Fort Campbell’s C&D waste was co-mingled and sent to area landfills. The Wilmot team was recruited to manage C&D waste from the construction of 300 new barracks and design a waste diversion program for the base.
Results Wilmot Inc. located markets for recycled materiasls, developed a full-cost accounting model for the project and created protocols for base contractors, guiding cost-effective material sorting. Wilmot reviewed and improved upon the base Installation Design Guide, adding mandatory 40% recycling specifications and custom materials handling recommendations. Ft. Campbell now has a state of the art recycling program. Using information from the barracks project Wilmot created a Contractor Training Program. The mandatory program includes an 80-page Contractors’ Tool Kit, a market directory, and a Training Video that teaches contractors how to sort debris to make them a valuable resource rather than simply waste bound for landfills.
Music City Center
Background In 2004, facing growing demand for convention space, Metro Nashville planners recommended expanding the existing center or planning for a new convention facility. Two years later the Music City Center Committee endorsed a new convention center that would accommodate 75% of the nation’s convention and visitor market. With the existing city ordinance requiring all new Metro buildings attain LEED Silver status, the project called for exceptional consulting experience in sustainable large-scale construction.
Results Representing the contractor and owner throughout the 3-year project, Wilmot helped both contractor and owner attain LEED points, and also identify green building opportunities for the project. With over 2 million square feet of convention space, MCC has doubled the downtown meeting and exhibit space available in the current convention center. MCC has also set a new standard for large-scale green construction. Now completed, the world-class convention center will help educate convention goers from all over the world about green buildings and they will take those ideas home with them.
Lipscomb University School of Nursing
Background Lipscomb University’s School of Nursing is its latest example of local leadership in sustainable design and construction. As part of a multiple-building master plan, the School of Nursing is pre-plumbed and pre-wired to use a district ground source heat pump refrigerant loop being developed below the building cluster. When all buildings in the cluster are constructed they will begin using the district loop.
Results Wilmot was hired to provide both Fundamental and Enhanced Commissioning to satisfy LEED prerequisites and credits and ensure proper operation of the building’s energy systems. Commissioning, the process of insuring equipment is installed and operates as designed, is a LEED requirement, but is a valuable step for any building. The U.S. Department of Energy’s Lawrence Berkeley National Laboratory has repeatedly documented the value of commissioning and retro-commissioning for improved building performance and rapid financial payback.
In 2011, the previously independent City of Lakewood, TN was annexed by Nashville Metro Government. To bring Lakewood up to Metro Water Services’ (MWS) standards, a $13.9M infrastructure renewal project began in 2014. As part of Metro’s larger effort to increase efficiency and reduce overflows throughout the city, the project replaced or rehabbed nearly every water and sewer service within Lakewood and installed a new stormwater system. Wilmot was asked to do a case study analyzing the benefits to the community, focusing on the social, environmental, and economic impacts of the investment.
The Wilmot Team found that the city will receive benefits of $27.1M in economic activity, 159 community jobs, and support for local Nashville small businesses, with 91% of construction work completed by small & disadvantaged businesses within Davidson County. Public safety was improved as an increase in system volume effectively doubled the flow of water that can be used to fight fires. The new stormwater collection system, designed to safely remove water from 98% of heavy rainfall events, was also found to reduce problematic flooding in the community. New water and sewer lines will mitigate distribution system leakage and infiltration into cracks in the sewer system. Increased efficiency in the system will reduce the amount water requiring treatment by 5.5M gallons each year, in turn reducing energy demand, associated public health costs from energy generation, and operations and maintenance costs to MWS. Wilmot, Inc. found that this will save MWS up to $27,000 each year and will protect the health of our communities and save taxpayer dollars.
TIGER Grant Benefit Cost Analysis
Background Nashville Metro’s Planning Department and Greenways for Nashville partnered with Nashville’s Parks Department to apply for DOT TIGER Grant funding to support the design and construction of the 440 Greenway trail. The trail, which had initially been proposed in the 1970’s, will connect three major corridors in West Nashville with the existing greenways, trails, and city parks.
Results Wilmot performed the Benefit-Cost Analysis portion of the grant application. Using benefit-cost methodology Wilmot constructed a model to offset the costs of the project by calculating the estimated value of community benefits that were projected to arise as a result of the greenway’s constriction. The analysis modeled the number of new users and monetized benefits to users and bystanders using metrics for health, mobility, equity, safety and more. After DOT Economist review, the analysis earned TIGER's highest rating.
Chattanooga Housing Authority
Background Chattanooga Housing Authority initiated two LEED for Homes projects to replace dilapidated multi-family housing. The first project received 50% of its funding as an incentive grant to pursue Platinum certification. The second was developed by a for-profit affordable housing developer/operator with no incentive funding. Wilmot Inc.’s competitively priced proposal was chosen to facilitate achievement of basic LEED certification of this second project, Maple Hills Apartments.
Results Wilmot led an integrated project team through a design charrette, showing that LEED Silver was within easy reach. Wilmot was later asked to identify measures to reach Gold certification, all of which was achieved with less funding than budgeted. Wilmot’s most critical contribution was the discovery of critical design flaws that would have caused premature equipment failure, wasted energy, and negative impacts on resident health. Correction of the error not only prevented ongoing equipment performance issues and complaints, it also saved the project 80% of Wilmot’s fee in the form of reduced construction costs, not counting millions of kilowatts and equipment repairs saved over the life of the buildings.
Habitat for Humanity
Background Habitat for Humanity of Greater Nashville’s mission is to provide quality, affordable homes. One way Habitat achieves this mission is by using the LEED for Homes certification to provide healthy, durable homes with lower utility bills. Wilmot Inc was select to help reach higher levels of energy efficiency and LEED certification.
Results Wilmot’s team initially identified 11 LEED points that were not being claimed, facilitated Habitat’s early adoption of ENERGY STAR version 3.0, and made recommendations resulting in an additional 10% energy savings over the prior year's LEED homes (with the additional measures having a 7-year simple payback). Wilmot returned a Silver certification in record time to qualify Habitat for a Spring 2012 grant-funding deadline.
Wilmot was specifically hired to help the affiliate achieve Gold certification at minimal cost and to lead the development of the “next generation” of all-electric homes: those consuming 50% less energy than the 2004 International Energy Conservation Code requirement, without the use of photovoltaic panels. To this end, the Wilmot-led team has identified another 7 LEED points, available at no additional cost, to achieve Gold, and is writing a grant to pursue Passive House energy efficiency levels.
Central WWTP Optimization
Background For Metro Water Services (MWS), sustainability is a core mission. Providing clean water and protecting the environment are essential services provided to the Nashville community. The Central Wastewater Treatment Plant Improvements and CSO Reduction (COPT) Project continues this long tradition by dramatically increasing treatment capacity in order to protect the Cumberland river while limiting construction of new tankage.
Results Wilmot was selected as a member of the design team to develop a sustainability plan and to provide engineering support. The plan incorporates public parks, a greenway, green-infrastructure, and solar power that, among other things, will increase recreational area, improve community mobility, and enhance livability for the surrounding neighborhoods.
Wilmot’s engineers are tasked with implementing and tracking energy efficiency improvements at the plant. These improvements will save MWS money, reduce greenhouse emissions, and ensure Nashville’s future wastewater treatment needs will continue to be met far into the future.
Energy Management Program
Nashville Metro Water Services (MWS) has implemented an Energy Management Program to supplement and build upon the energy savings gains made over the past 10 plus years at the three wastewater treatment plants and two water treatment plants operated by MWS. One of the notable past achievements include energy savings realized by the fine bubble aeration system at the Dry Creek Wastewater Treatment Plant installed in 2007. Miscellaneous other general upgrades have resulted in savings from energy efficient lighting and HVAC upgrades.
Four years into this project MWS has realized over $1,000,000 in energy savings as a result of their efforts. Planned projects are expected to result in approximately $1,000,000 in additional year over year savings. Some of these planned projects include:
A combined heat and power engine to generate electricity using biogas at Dry Creek Wastewater Treatment Plant
Energy efficient fine bubble aeration system at White’s Creek Wastewater Treatment Plant
Multiple improvements at Central Biosolids Facility to improve capture and use of biogas to power plant processes
Highland Heights School
Background Built in the 1930’s, the historic Highland Heights School had fallen into disrepair. The school, current home of KIPP Academy, is undergoing a renovation that will result in a high performing, healthy learning environment, giving over 1,000 Nashville students the opportunity to attend a green school.
Results Wilmot was selected to help the General and Mechanical contractors achieve LEED Silver certification. Notable features include a geothermal heating and cooling system and natural daylight. Other LEED requirements include no VOC materials, high acoustic performance, and stringent mold prevention strategies. When complete the building will act as a teaching tool to instruct students on the benefits of high performance building. Additionally, it will reduce operating costs for the Metro Schools system.
Harpeth Square Apartments
Background In 2016, the U.S. Department of Housing & Urban Development issued a long-awaited incentive program to encourage developers to incorporate energy efficiency and other sustainable measures in their projects. HUD now offers a 40 basis point reduction on their monthly Mortgage Insurance Premiums (MIP) to owners who commit to a high standard of efficiency and green building certification. Harpeth Associates hired Wilmot to lead their effort to qualify, while simultaneously earning their first LEED certification.
Results Wilmot led the design team and consultants to achieve an estimated Energy Star score (SEDI) in the 79th percentile of energy efficient buildings nationwide. The building upgrades required to achieve this threshold are estimated at $600,000 while the owner will save an estimated $6,000,000 over the next 40 years. On a present value basis (5%) this amounts to $2.6M in today’s dollars, a 330% return on investment. Wilmot further led the team to choose between multiple green building programs to achieve the MIP savings with the owner eventually choosing LEED Gold to convey their commitment to their expected clientele.
Old Dominion Freight Lines
Background Old Dominion Freight Lines is a leading U.S. logistics provider. Old Dominion’s first Director of Sustainability quickly realized she had little reliable information about how the company used resources. Old Dominion was also underwhelmed by the negligible impact of their first step towards sustainability, a solar array on its headquarters building. Meanwhile, they had no idea how much energy they were using, nor did they know of the much larger efficiency opportunities in their nationwide portfolio of distributions centers. Wilmot was hired to benchmark facility energy use and provide a roadmap for affordable sustainable operations.
Results Wilmot developed, tested, and rolled out a company-wide protocol to collect structural and energy usage information. Profiles were created and energy usage was loaded into the Energy Star Portfolio Manager for 150 facilities. The facility data allowed the project team to choose the best candidate sites for more comprehensive site audits, detailed energy studies, and recommendations. Daylighting and lighting retrofits are anticipated nationwide. Solar installations are anticipated through a rooftop-leasing program in states where incentives support a profitable business model for lessor and lessee.
Background The Wilmot team was brought in to work with the project’s contractor, the Tennessee Stadium Group, at project commencement and remained through final clean up. The construction of the new stadium took place at a time when C&D recycling was in its infancy, requiring all recycling plans and site protocols to be created from scratch.
Results Wilmot created a C&D debris reuse, recycling and disposal program that impacted all 850 members of the on-site crew. Wilmot saved the project approximately $500,000 through efficient waste handling methods and managed a $1 million dollar waste stream. Stadium construction took place over a 2.5-year period and reclaimed and reused more material than any other U.S project built before it.
One of Wilmot’s strengths is creating programs that not only incorporate best practices, but also encourage employee “buy-in.” The key to success is the concept that program gains contribute to the success of the team and the sustainability of the community.
Clean Water Nashville
Metro Water Services (MWS) provides water and wastewater services to over 177,000 accounts in the greater Nashville, TN area. In March 2009, MWS entered into a consent decree with federal and state agencies to clean up Nashville’s waterways by limiting or eliminating the flow of sewage into the Cumberland River and the tributaries that feed it. Clean Water Nashville officially kicked off in 2012 as a program of over 70 projects to be completed over 11 years at a cost of over $1.1B to bring MWS’s operations into compliance with the federal Clean Water Act of 1972. Wilmot Inc. was hired to develop sustainable approaches for this program.
Wilmot was asked to contribute to the sustainable design standards and to develop the sustainable construction standards. Borrowing from other successful certification programs, Wilmot advocated for an additional, flexible set of sustainability targets that would be pursued on each project. The objective was for MWS to experiment and demonstrate success with design and construction standards that they could then expect private developers to follow in the future. Low Impact Development and other green infrastructure measures were among the standards. Wilmot also conducted a feasibility study for the profitable recycling and reuse of construction materials and is developing a pilot to test the potential for a program-wide recycling program over the next 11 years. Finally, Wilmot is currently inspecting sites to verify compliance with the standards.
Davidson Branch Equalization Tank and Pump Station
Nashville’s wastewater collection system began in the 1820’s as an assortment of clay and brick sewers, all discharging into the Cumberland River. Over time, the steady growth of people and places drove demand for over 2,900 miles of sewers, many combining sewage and storm water. Passage of the Clean Water Act in 1975 set new water quality requirements for hundreds of cities nationwide. Metro Water Services’ ongoing Overflow Abatement Program has been reducing contaminated sewer overflows for decades. In 2009, a consent decree between the EPA and Metro set a deadline to eliminate sanitary sewer overflows and drastically reduce combined sewer overflows. The Davidson Branch Equalization Tank (6MG) and Pump Station (~15 MGD) is one of over 80 projects that will help Metro achieve its overflow abatement goals.
Wilmot was chosen to lead the diverse project team’s compliance with Metro Water Services’ Sustainability Requirements. Wilmot advocated the use of the Institute for Sustainable Infrastructure’s Envision Rating System as a way to ensure a comprehensive approach to sustainable development from project design through operation. A focus on community input and coordination generated the idea of matching the facility’s facade with surrounding buildings. In an effort to collaborate with other Metro agencies, the Master Plan includes options for a future Metro Parks soccer field and Greenway extension. To improve resource allocation the project team will both source regional and recycled content as well as reuse materials where possible. To reduce energy use an innovative pump layout is proposed to handle both the duty and wet weather pumping responsibilities. To take advantage of renewable energy the tank roof will be “solar ready”. To support the city’s long-term stormwater goals, all runoff will be captured and managed on the site. This project will be Metro Water’s second candidate for Envision certification.
Al Gore Residence
Taking on an existing structure is a particular challenge, especially a large home designed in the 1920s when energy efficiency was not a concern. Wilmot Inc. put together a team to look at every aspect of the home’s resource use, and the project became the first LEED for Homes Retrofit in the U.S.
Wilmot provided LEED certification and consulting for the retrofit of both the home and the Gore’s personal offices at the residence. The work included a full spectrum of improvements designed to achieve a 50% energy reduction over current building codes for new construction of that size. The house was certified LEED Gold. “Short of tearing it down and starting anew, I don’t know how it could have been rated any higher,” commented a USGBC representative. Wilmot also performed the documentation to have the home Earthcraft certified through the Southface Energy Institute. As a result of their outstanding performance, Wilmot was selected a LEED for Homes Provider Representative for Tennessee.
Ewing Creek- Brick Church Equalization Facility
Nashville’s wastewater collection system began in the 1820’s as an assortment of clay and brick sewers, all discharging into the Cumberland River. Over time, the steady growth of people and places drove demand for over 2,900 miles of sewers, many combining sewage and stormwater. Passage of the Clean Water Act in 1975 set new water quality requirements for hundreds of cities nationwide. Metro Water Services’ ongoing Overflow Abatement Program has been reducing contaminated sewer overflows for decades. In 2009, a consent decree between the EPA and Metro set a deadline to eliminate sanitary sewer overflows and drastically reduce combined sewer overflows. The Ewing Creek – Brick Church Equalization Tank (~10MG) and Pump Station (~18 MGD) is one of over 80 projects that will help Metro achieve its overflow abatement goals.
Wilmot was chosen to lead a diverse projects team’s efforts to comply with Metro Water Services’ sustainability requirements. Due to the project’s location in a residential neighborhood and its visibility from two major highways, aesthetics and visibility of the tank were major concerns. This was addressed by burying a significant portion of the tank to reduce the height above grade and through landscaping design that utilizes a vegetated buffer to shield the site from view. Burying the tank meant that a large volume of rock would need to be excavated, resulting in over 2,000 truckloads of excavated material needing to be hauled to a landfill. The project team reduced this number dramatically by reusing as much of the material onsite as possible, resulting in cost savings and a reduction in pollution associated with truck traffic. Numerous other innovative, low impact development strategies were applied to the project including green infrastructure to reduce stormwater runoff, use of native/non-invasive plants, and the ability to locate a public park on the site in the future.
West Park Equalization Basin
Metro Water Services (MWS) provides water and wastewater services to over 177,000 accounts in the greater Nashville, TN area. As part of MWS’ Clean Water Nashville (CWN) program, Wilmot was chosen as a member of the design team to incorporate green infrastructure and demonstrate the sustainable design guidelines at Metro Nashville’s West Park.
As part of the design team for one of the first CWN projects, Wilmot took the initiative to “stress test” the sustainable design standards through workshops and design meetings. Wilmot exceeded the design guidelines with several additional design options, only two of which were eliminated from consideration for constructability or maintenance reasons. Additional design constraints include a floodplain, floodway, and stream buffer adjacent to the construction site, residential neighbors, uncompensated fill issues, and poor grading conditions. Wilmot is also developing the cost and benefits of solar-ready design, reforestation, rainwater collection, bioswales, vegetated buffers, and 100% management of site storm water.
David L. Lawrence Convention Center
Background When architect Rafael Viñoly was commissioned to design Pittsburgh’s new convention center, the project was guided from conception by his goal to create a world class green building. “Architecture is a dialogue with the forces of life. As a major form of social intervention, its essential responsibility is to elevate the public realm,” says Viñoly. Wilmot Inc. was contracted to play a pivotal role in making the project’s goals a reality.
Results The Wilmot team quantified materials produced at the convention center site to design a comprehensive program of recycling and reuse during the construction process. To measure the cost effectiveness of recycling, Wilmot tested the potential and overall effectiveness of a large-scale C&D debris-recycling program. The testing included savings projections on local, community and state levels. By using crushed concrete along the riverbank at the site, the project re-claimed a significant amount of C&D debris.
Wilmot’s successful intervention measures helped make the David L. Lawrence Center the first convention center in the world to attain a Gold LEED rating.
Balfour Beaty/ U.S. Armed Services Greenhouse Gas Emissions Reporting
The U.S. Armed Services contract with property managers around the world to manage the daily operations of their facilities. When performing an internal review of their greenhouse gas emissions, Balfour Beatty realized they had no reliable energy use data for the hundreds of U.S. military facilities they managed. Facing an ISO 14065 audit by KPMG, they turned to Wilmot, Inc. for help.
Wilmot analyzed Balfour Beatty’s portfolio to estimate annual energy usage and opportunities for improvements in their reporting process. Wilmot consolidated climate, usage, and building characteristics while vetting multiple Department of Energy data sources to develop the most appropriate estimation protocol. Wilmot’s engineering analysis of the portfolio, rationalization and use of additional variables and comparison to selected actuals were complimented by Balfour Beatty as the only bright spot in their ISO audit.
1420 Shelby Avenue
Homebuyers looking for a modern and sustainable home don’t have to sacrifice either. A Nashville design and construction team has been building high performance green homes that suit buyers’ interests in both efficiency and style.
With a vision of modern beach houses on stilts, Nashville developers Green Home, (n)Habit, and Nashville Home Energy Solutions have been developing multiple lots on severely sloped land long since abandoned in the 1950’s suburban growth in East Nashville. Located along Shelby Avenue, the lots were restricted by the normal setbacks, then a variety of stormwater and public easements.
Wilmot facilitated multiple LEED Platinum certifications for the team. The homes have 6” walls filled with dense-pack cellulose and spray foam insulation to buffer temperature, humidity, and sound. The homes use Mini-Split Heat Pumps with SEER levels above 20 and super-insulated water heaters. Bathrooms feature high-efficiency fixtures, while rainwater is collected in a cistern to irrigate the native landscaping. Each home features a unique exterior, from fire and termite-resistant charred oak to fiber cement shingles - all chosen for their dual function of appearance and durability. Local and reclaimed materials were used inside and out to create sustainable modern homes.
Community Health Systems
Four Community Health Systems (CHS) hospital properties in South Carolina were included in a plan to increase profits and utilize space efficiently through the installation of PV solar panels. In Community Health System’s negotiations with solar developers, the Wilmot team was asked to analyze an installation proposal and suggest recommendations based on extensive experience in renewable and alternate technologies.
Wilmot was able to effectively name the most favorable sites to place the 7.2 MW of PV solar panels based on models that compared rooftop, ground mount, and carport mounted installation sites. The analysis identified areas of consideration including system production, siting and financing concerns. Additionally, the proposal review incorporated the panels’ effects on building attractiveness and potential impacts to the tree canopy. Financial structures that included state and federal incentives were identified by the Wilmot team as options to further progress Community Health System’s mission of sustainability.