Diverse Project Experience

At EDi, our experience is about life. Our engineers design the elements of a building that bring it to life. Building operators maintain the building's living systems. And ultimately, people enjoy living in the building. We design the systems that allow people to live comfortably, work efficiently, and play in facilities dedicated to Education, Science & Technology, Mission Critical, Government, Commercial, and Cultural purposes.

Select one of the sub-categories to the right to see a few examples of buildings engineered for life.

"The only source of knowledge is experience."

- Albert Einstein

Vance-Granville Community College- Henderson, NC
HVAC and Fire Alarm Study and Replacements in Multiple Buildings

EDi completed a study for VGCC evaluating the existing HVAC & Electrical systems for 7 of the 10 main campus buildings, and Fire Alarm systems for all 10 buildings. The majority of buildings were originally built in the mid-1970s and include classrooms, vocational shops, administrative, bookstore, lecture halls, daycare, and civic center functions.

As part of the study, priorities were developed based on the age of equipment, building use, and construction schedules. EDi created cost estimates for each of the buildings including HVAC system replacement and associated electrical work, complete lighting fixture replacement, and fire alarm system replacement. In addition, an asbestos assessment was performed to determine the existing conditions of the buildings and to develop the costs to be included in the overall project budget. Based on these developed priorities and costs, the design phase scope of work and associated project/construction schedules were developed that met the College's budget and needs.

The project is currently in the first phase of design, which is the fire alarm system replacement for all 10 buildings. Based on the coordination with the College's classroom and facility schedules, the construction is targeted to begin in May 2019 with the majority of work completed during the summer session. The HVAC/Lighting Replacement construction will be completed in a separate phase during the summer of 2020 for two of the campus buildings. The existing HVAC system for the 35,000 sq. ft., 3-floor Bookstore, Lecture Hall, LRC building consisting of a multi-zone AHU, air-cooled chiller, and gas-fired boiler system will be replaced with a DX-cooling VAV system with high-efficient gas-fired boilers. The 23,500 sq. ft. Classroom, Office and Daycare building has existing humidity issues with the HVAC system consisting of multiple blower coil units. The system will be replaced with a DX-cooling VAV system with individual AHUs for the separate functions within the building and gas-fired boilers. The existing fluorescent light fixtures will be replaced with high-efficient LED fixtures throughout both buildings

UNC-Chapel Hill - Chapel Hill, NC
Morehead Chemistry Labs Ventilation

EDi provided engineering systems design and construction administration for the partial replacement of the (8) lab exhaust fans on the roof, (4) make-up air fans, and the controls and accessories to this equipment which serves the chemistry teaching labs. The specific work includes:

  • Replacement of (8) 8,000 CFM inline mixed flow lab exhaust fans with like kind fans with VFD's.
  • Replace (3) Siemens motor control centers with new 480V/3 phase panels and motor controls
  • Provide signal and power to existing student enclosure hood alarms to operate when exhaust fans are on.
  • Explore cost/feasibility of refurbishing existing remaining lab make-up air units • Add controls for lab exhaust fans and make-up air units

Add-Alternate work to be designed:

  • Replace (8) unconditioned make-up teaching fume hoods with non-makeup style hoods with lower airflows
  • Refurbish (4) indoor dual duct AHU's
market project

East Carolina University - Greenville, NC
Mingles Coliseum Auxiliary Gym Addition

EDi provided engineering design and construction administration services for the 44,000 square foot addition to the existing Minges Coliseum Athletic Center. The new addition consists of new Men's and Women's basketball team practice courts, a new entrance with Hall of Fame display areas, coach's offices, team rooms, locker rooms and showers. A chilled water plant upgrade was part of the design which involved a new magnetic bearing chiller, new pumps, and rework of the chiller and condenser water piping arrangements to correct existing deficiencies.


PME&FP Design
Advanced Planning
Construction Admin
market project

Sandhills Community College - Pinehurst, NC
Logan hall General Classroom Building

Logan Hall is a new 35,000 square foot, two-story building that houses the Humanities, English, and Mathematics Departments at Sandhills Community College. The building includes faculty office and support areas and 20 classrooms. EDi provided MEP & FP engineering design for this new building which earned LEED Silver Certification. Design included a Solar Hot Water system, energy-efficient lighting and water saving fixtures as well as classroom audio visual (A/V) infrastructure design.


Mechanical Engineering
Electrical Engineering
Plumbing Engineering
Fire Protection Engineering
Construction Administration
market project

North Raleigh Christian Academy - Raleigh, NC

EDi provided complete MEP & FP engineering systems design for an 180,000 square foot private school located in Raleigh, NC. In addition to the classroom areas, the facility has a main gymnasium, secondary gymnasium, indoor competition pool, library, media center, fine arts center with auditorium and stage area, fitness center, art center with kiln and science labs. The school also includes tennis courts, two baseball/softball fields, track, football field and associated support buildings. The mechanical design for this facility was a four-pipe system consisting of (2) 300 ton air-cooled screw chillers, primary/secondary pumping, 4 gas-fired boilers, over 40 constant-volume air-handling units, and a dedicated pool conditioning system. EDi also designed the site lighting and athletic field lighting for the facility. The fine arts building included state-of-the-art theatrical lighting and production equipment coordination and design.


Mechanical Engineering
Electrical Engineering
Plumbing Engineering
Fire Protection Engineering
Construction Administration

List of K - 12 Schools

Alamance-Burlington School System, Burlington, NC

Alexander Wilson Elementary School, HVAC Replacement & Electrical Upgrade

Alexander Wilson Elementary School, Classroom Addition

E.M. Holt Middle School, Engineering Design for New Addition

Haw River Elementary School, 15,000 SF Addition

Southern Middle School, HVAC Replacement, New Chiller and Boilers

Walter Williams High School Asbestos Abatement Renovation and Lighting Upgrades

Walter Williams High School Main Floor Renovation

Durham Public Schools, Durham, NC

Northern High School Commissioning

Carr Building Commissioning

Merrick Moore Elementary School Renovations & HVAC Replacement Parkwood Elementary School Commissioning

YE Smith Elementary School Commissioning

Easley Elementar Boiler Replacement

Guilford County Schools, Greensboro, NC

Dudley High School, Athletic Field and English Building Renovation Jackson Middle School, Boiler Replacement

Northeast Middle School, Main Building HVAC Renovation Northeast Middle School, Lead Engineer for Roof Repairs

Wiley Elementary School, Boiler Replacement

Private Schools

Arendell Parrott Academy, Fine Arts Building, Kinston, NC

Grace Christian School, New School, Raleigh, NC

North Raleigh Christian Academy, New Campus ($30M), Raleigh, NC

Wake County Public School System, Raleigh, NC

Carnage Middle School, HVAC and Electrical Switchboard Replace- ment and New Fire Alarm System

H6 High School, Engineering Consulting Peer Review

Hunter Elementary School, HVAC Replacement

System-wide Geothermal Services RFQ, Engineering Consulting

Wake Forest-Rolesville Middle School, Boiler Replacement & New Sub-meters

West Millbrook Middle School HVAC Replacement

YMCA SE Raleigh Elementary rendering

List of Community College Clients

Cape Fear Community College, Wilmington, NC

Davidson County Community College, Thomasville, NC

Gaston College, Dallas, NC

Guilford Technical Community College, Jamestown, NC

Lenoir Community College, Kinston, NC

Randolph Community College, Asheboro, NC

Sandhills Community College, Pinehurst, NC

Wake Technical Community College, Raleigh, NC

Vance-Granville CC

market project

Clemson University, Greenwood, SC
Center for Human Genetics

Engineered Designs, Inc. provided engineering design and construction administration services for a new laboratory research facility for Clemson University at the Greenwood Genetics Center in Greenwood, SC.

Clemson University is currently working in partnership with the Greenwood Genetics Center on education and research activities associated with human diagnostics and central nervous system research in cognitive development, autism, birth defects and epigenetics. The current educational component of the Center is a doctoral program in human genetics. This building will serve as a research and education center to expand the existing doctoral program to include a nationally competitive research and development team and enhance the existing research capabilities of the J.C. Self Research Institute of Human Genetics. The project allows for expansion of the existing research capabilities that the university has in Greenwood and will attract research and development companies engaged in human genetics research.

The 17,000 square foot Clemson University Center for Human Genetics sits on approximately 2.4 acres of the 16.7 acre tract owned by Clemson, and is sited to allow for future campus buildings. The building accommodates eight (8) each 800 SF BSL-2 labs, bottle wash, autoclave, offices, breakroom, conference/seminar rooms, and lobby/public spaces. The building was designed to fulfill requirements for LEED Silver Certification.

List of University Clients

Appalachian State University, Boone, NC

New River Lighting & Power Administration Building

East Carolina University, Greenville, North Carolina

Athletic Complex and Teams Building Commissioning*

Carol Belk Building Renovation

Clement Hall Renovation

College of Education Renovation

College of Human Ecology Renovation

Cotanche Data Center Study and HVAC Upgrade

Gateway East and West Residence Halls Commissioning*

North Recreational Complex Phase I

Mendenhall Student Center Chiller Replacement

Minges Coliseum Auxiliary Gym Addition

Minges Coliseum Chiller Plant Upgrades

Minges Coliseum Fire Alarm & Scoreboard Replacements

Polk Hall Life Safety Upgrades/Improvements

Pullen Hall Renovation

Whichard Building Chiller Replacement

Duke University Medical Center, Durham, NC

Baker House HVAC Renovation

Bell Research Building, Nanaline H. Duke Building & Sands Research Building-Fire Protection Systems

Fayetteville State University, Fayetteville, NC

Taylor Science Hall Renovation

Student Center Commissioning*

Science and Technology Building Commissioning*

Renaissance Student Housing Commissioning*

North Carolina Central University, Durham, NC

Alexander-Dunn Building Renovation

Farrison-Newton Communications Building

North Carolina State University, Raleigh, NC

Biltmore Hall Laboratory Renovation Assessment & Design

Bostian Hall Upfit

Brickhaven Building Renovation

College of Vet Med IAMS Pet Imaging Facility Renovation

Computer Lab Renovation

Council Building Renovation

North Hall Resident Hall Renovation

Millstone Kitchen Renovation

Polk Hall Life Safety Upgrades

Pullen Hall 2nd Floor Renovation

Research IV USGS Upfit

Ricks Hall Renovation

West Lot Parking Deck

Meredith College, Raleigh, NC

Soccer Field and Field House

William Peace University, Raleigh, NC

Dormitory Renovations

Library Renovation

Pressly Arts and Science Building Lab Renovation

UNC-Chapel Hill, Chapel Hill, NC

Arts and Sciences Foundation

Brooks Hall Energy Upgrades

Bynum Hall Renovation

Carrington Hall Lab Renovation

Collaborative Sciences Building Fire Protection Engineering

East Chiller Plant Heat Exchanger

UNC Morehead HVAC System upgrade Emergency Project

Gillings School of Global Public Health

Mcgavran-Greenberg Hall Renovation

Gravely Building Renovations

Jackson Circle Parking Deck

Koury Natatorium Drainage

Lineberger Cancer Center Phase II Lab Renovations

Manning Hall Engineering Systems Assessment and Design

McNider Hall HVAC Improvements

Phillips Hall CPU Room HVAC

UNC-Greensboro, Greensboro, NC

Gatewood Studio Arts Fume Hood Study

School of Education Teaching Resources Center Renovation

UNCG Sullivan Green house Study & Design

UNCG Ragsdale-Mendenhall Renovation Cx.

UNC-Wilmington, Wilmington, NC

Dobo Hall & Behavioral Sciences Building HVAC Study & Design

Wake Forest University, Winston-Salem, NC

Science Lab Renovation

market project

GTCC Center for Advanced Manufacturing

Guilford Technical Community College-Jamestown, NC

Size: 187,322 SF Existing Space; 206,538 SF Future Space

EDi is providing electrical design consulting services for the renovation of an existing 250,000 square-foot building built in the mid-1960s. The renovation will provide a new Center for Advanced Manufacturing facility for Guilford Technical Community College. The space will be utilized for welding, machining, transportation, automotive, and autobody learning centers. In-depth space assessments and programming studies of department areas and needs were performed to determine speci c needs within this adap ve re-use project.

EDi engineers conducted detailed field investigations of the existing building electrical system components to determine condition may and power requirements for each piece of existing equipment. Design of following systems is included in the scope of work: building lighting, emergency and exit lighting, power, fire alarm, telecommunications, site lighting, blue light system, and low voltage infrastructure.

market project

Amphora Discovery Corporation - Durham, NC

Amphora Discovery Corporation required a state-of-the-art laboratory facility and renovated a 25,000 square foot building in Durham County near Research Triangle Park. This project was intensive due to the fast track nature of the design. The design was phased in order to expedite the occupancy date for the tenant, with certain areas of the labs and offices being completed while other areas were still in the design phase. EDi facilitated the pre-purchased of several long-lead items due to the short construction schedule of the project, in an effort to expedite the delivery dates. An independent company was retained to trace the under-slab sewer piping to verify invert elevations, condition of pipe, and exact routing locations prior to initiating the plumbing design. EDi provided MEP & FP engineering systems design. Some of the systems incorporated - a generator, UPS system, new electrical service, new compressed air, DI water, and vacuum. The facility included a mission-critical computer room with independent and redundant cooling systems and emergency back-up power.


Mechanical Engineering
Electrical Engineering
Plumbing Engineering
Fire Protection Engineering
Construction Administration
market project

Duke University Medical Center - Durham, NC
Endourology Procedure Rooms

EDi provided mechanical, electrical, plumbing, and fire protection engineering systems design for a new endourology procedure rooms that included X-Ray, anesthesia, video, and surgical lighting equipment. Design services for this operating room required intensive video and equipment coordination.


Mechanical Engineering
Electrical Engineering
Plumbing Engineering
Fire Protection Engineering
Construction Administration
market project

Hosted Solutions - North Carolina

EDi provided MEP & FP engineering systems design for a new 19,000 square foot data center and NOX center project for Hosted Solutions which provides leasable service rack space as well as disaster recovery areas to outside companies. The design of this mission critical facility included a fully-sized generator and UPS for 24/7 back-up, CRAC units for the HVAC system, as well as full above-floor and below-floor fire alarm and chemical fire suppression system.


Mechanical Engineering
Electrical Engineering
Plumbing Engineering
Fire Protection Engineering
Construction Administration
market project

Coble Transportation Center, Piedmont Authority for Regional Transportation (PART)-Greensboro, NC

The Piedmont Authority for Regional Transportation (PART) developed a new Coble Transportation Center consisting of two buildings, public parking, bus bays and slips with canopy, a designated taxi area, passenger amenities, maintenance, and bus storage. This site includes outdoor plazas, outdoor vending, and landscaped areas. Site lighting and security cameras are included. The bus storage and maintenance facility is a building of approximately 17,000 SF with maintenance garages, staff and driver operators offices and specialized areas, bus storage, fueling station, and parts area.

Engineered Designs, Inc. provided review of plans, specitications, and control sequences, determination of energy conservation measures to be incorporated, complete load calculations for the buildings, energy modeling.


Mechanical Engineering Consulting; Energy Consulting

market project
market project

NC Department of Administration - Raleigh, NC
Green Square Parking Deck

EDi provided design and construction administration services for a new, eight-level (two basement levels), parking structure located in downtown Raleigh to serve as a parking deck for government employees. The design was completed in conjunction with adjacent, multi-story museum/support office building. This project includes sustainable or green design components such as an internal rainwater collection system, infrastructure PV arrays, LED lighting design, and electric car stations.


Mechanical Engineering
Electrical Engineering
Plumbing Engineering
Fire Protection Engineering
Construction Administration

US Army Base Fort Bragg, NC

4th MISO Headquarters RFP Generation
A-3275 and A-3280 Renovations
Command Classroom
General Warehouse
Hangar 3637
JSOC C4 Building
JSOC Dining Facility
JSOC JIB Building
JSOC SOF Training Facility
Motor Pool Facility
SOF Brigade Headquarters
SOF Medical Support Facility
SOF Squadron HQ Addition
SOTF Med Clinic RFP Generation
Training Building at Range 16

Seymour Johnson Air Force Base, NC

A-E Services IDC Fort Fisher, NC
Building 3611 Renovation & Elevator Addition
Consolidated Support Facility
Construct Addition to and Repair SIM OPS for BOWST Building 4916
Weapons Vault Expansion

Shaw Air Force Base, SC

Waste Water Treatment Plant

Ft. Benning

Ft. Eustis

Ft. Pickett

market project

City of Raleigh - Raleigh, NC
Transit Operations Center

The Raleigh Transit Operations Center is a six building campus on a 23-acre site. Buildings include a 27,300 square foot Administration Building, a 55,900 square foot Maintenance Building, a 7,000 square foot Wash Building, a 2-lane Fuel Fare Facility, and a Bus Shelter. Mechanical and plumbing systems design include a geothermal system utilizing water-source heat pumps and geothermal well fields, chilled beams, radiant heat floor systems, ultra-low flow water saving fixtures, and high-efficient equipment. It is the first integrated administration and maintenance facility of its kind in the nation to achieve LEED Platinum certification. Additional sustainable features include reflective roof membranes and light-colored concrete paving, natural light and occupancy sensors, and rainwater collection cisterns.


Mechanical Engineering
Plumbing Engineering


American Public Works Association - National Project of the Year
Sir Walter Raleigh Award for Community Appearance
City of Raleigh Environmental Award
Carolina ABC - Excellence in Construction
TBJ Real Estate Award - Sustainable Project of the Year
market project

Lulu - Raleigh, NC
Headquarters Building

EDi provided engineering design services for the renovation of a landmark in downtown Raleigh - the former N.C. Equipment building - for the corporate office of Lulu.com. Lulu.com is an online self-publishing company enabling writers to print books of high quality in low volume for reasonable prices. While the exterior of the historic building remains the same a new glass-enclosed entry was added. The open interior has tall windows and exposed ductwork, lighting, brick walls, steel columns, and wood framed ceilings. Photos provided by the architect - Integrated Design.


Mechanical Engineering
Electrical Engineering
Plumbing Engineering
Fire Protection Engineering
Construction Administration
market project

Capitol Broadcasting Company - Raleigh, NC
Diamond View III

Engineered Designs, Inc. (EDi) provided plumbing, mechanical, and electrical design for Diamond View III, joining Diamond View I and II on the historic American Tobacco Campus. This building is 133,000 square feet with five levels including dining, retail, and Class-A office space as well as parking.


Mechanical Engineering
Electrical Engineering
Plumbing Engineering
Fire Protection Engineering
Construction Administration
market project

Well-Spring Retirement Community-Greensboro, NC New Auditorium / Arts Building

Engineered Designs, Inc. provided engineering design and code consulting services for the new auditorium/arts building at Well-Spring Retirement Community in Greensboro, NC. A new auditorium and arts building of approximately 28,000 SF will serve the residents providing a venue for concerts, plays, and community events.

The design for this project includes new plumbing waste and water piping systems and fixture selection and incorporates low-flow water saving devices. Electrical design includes electrical power systems and interior lighting. Mechanical systems design includes thermal load calculations, unit selection, and duct layout for the HVAC system. Performance-based fire protection design includes new fire alarm system design for the new auditorium building. EDi also provided code consulting services and prepared a Building Code Summary idenifying requirements regarding the construction type, structural, egress, fire protection, fire alarm, smoke evacuation, and other life safety requirements as well as a report identifying design considerations to comply with code requirement.


Mechanical Engineering
Electrical Engineering
Plumbing Engineering
Fire Protection
Engineering Code Consulting

market project

Poole Family YMCA-Garner, NC

Engineered Designs, Inc. provided mechanical, electrical, plumbing, and fire protection design and construction administration for a 39,342 square foot YMCA featuring a large wellness floor, a gymnasium, and workout studios. The outdoor area includes a swimming pool, lap pool, kid's pool, and a pool house. An amphitheater, outdoor chapel, and a large multi-purpose play field round out the site. The facility is designed with plans for an indoor natatorium.

The mechanical design for this facility included a 4-pipe chilled and hot water system with VAV air handling unit and VAV terminal units with hot water reheat. The chilled water is provided by an air- cooled chiller and the hot water is provided with high e cient condensing boilers. Electrical design included LED lighting, power distribution, telephone, data and fire alarm. Plumbing design for main toilet rooms utilizing water efficient fixtures, including showers in the lower level locker rooms. Fire protection systems design consisted of a performance-based design including the main back flow preventer and riser in the mechanical room. The spaces were served by a combination of exposed, semi-recessed and fully recessed sprinkler heads throughout the building. EDi also designed the building perimeter lighting and power for site lighting.

Cost: $9.7 million


Mechanical Engineering Electrical Engineering Plumbing Engineering
Fire Protection Engineering

market project

Ann and Jim Goodnight Museum Park Expansion-Raleigh, NC NC Museum of Art

NC Museum of Art Park Expansion moves the Ann and Jim Goodnight Museum Park beyond traditional boundaries, turning the museum experience "inside-out." The purpose of this project is to redesign, expand, and transform the park to unify the museum campus - blurring the distinction between "Park" and "Museum" while creating a framework for social engagements. Two of the features of the expanded park are a manicured lawn with a 600-foot elliptical bench designed to house outdoor exhibits and a series of 20 wave gardens with 150,000 varies of plants that create waves of color and texture along the promenade and parking lots. The new public identity fosters community interaction and distinguishes the Park as a regional cultural destination.

Engineered Designs, Inc. provided electrical engineering design and construction services to design the power, lighting, and security needs of the outdoor art park expansion. EDi's design of engineering systems provided include the following:

  • control/operation/dimming systems of the park lighting
  • permanent yet flexible event power and lighting needs that seamlessly integrate with the park's asthetic environment
  • security, audio, and video systems ensuring safety of park occupants
  • future electrical infrastructure for anticipated art park projects

EDi engineering professionals worked in close coordination with lighting consultants, landscape architects, security personnel, and museum management to develop designs that meet the goals of the Museum of Art and provide solid infrastructure for current as well as future uses.

Cost: $13M; Awards: TBJ SPACE Award


Electrical Engineering
Design and Construction Administration

market project

City of Durham - Durham, NC
Durham Performing Arts Center

Durham Performing Arts Center (DPAC) is a 2, 800-seat, 100,000 square foot state-of-the-art performance theater known for its crisp acoustics and excellent sightlines. Located near the American Tobacco Campus in downtown Durham, DPAC hosts a variety of programming-Broadway, family, comedy, concerts, holiday, arts, and outreach programs. EDi provided engineering systems design services including plumbing, fire protection, and site lighting for the new facility. Systems feature a deluge system sprinkler design for the main stage and a low-flow domestic water saving system. EDi engineers worked in close coordination with all trades from conceptual phase through the completion of construction.


Plumbing Engineering
Fire Protection Engineering
Site Lighting Engineering
Engineered Designs, Inc.
1151 SE Cary Parkway, Suite 200
Cary, North Carolina 27518
P: 919.851.8481
F: 919.851.9703