COMBINED COOLING HEAT & POWER PLANT
Wexford, PA

Winner of the Engineering Society of Western Pennsylvania Commercial Award for 2021.

The Allegheny Health Network Wexford Hospital (AHN) Combined Cooling Heat & Power System (CCHP) is a state-of-the art microgrid for a state-of-the art hospital. The LLI Engineering designed system produces reliable, efficient, and sustainable energy to keep the lights on and provide a comfortable environment for patients and staff year-round.

Fueled by Peoples Natural Gas and assembled by the master builders at PJ Dick Construction, the CCHP system provides up to 2 megawatts (2 MW) of electricity plus hot water, chilled water and steam to meet the needs of the hospital. Energy not being used by the hospital can be sold back to the grid.

“Being able to produce excess generation of energy that you can sell back to the grid is interesting and provides opportunities as well.” - Dr. Allan Klapper, President of AHN Wexford Hospital.

Winner of the Engineering Society of Western Pennsylvania Innovation Award for 2021.

The Pittsburgh International Airport (PIT) Microgrid merges the reliability of natural gas with the sustainability of solar energy to create a powerful, yet efficient power solution. Owned and operated by Peoples Natural Gas, the LLI Engineering designed system produces up to 20 Megawatts (MW) of power. At the time of construction by PJ Dick, PIT consumed 14 MW at peak. Excess power produced by the microgrid can then be sold back to market for a profit.

Awarded LEED Gold Certification from the U.S. Green Building Council and named on the “Best Eco-Friendly Hotel” list by USA Today’s 10Best Readers’ Choice for 2021.

Located in Howard, Pennsylvania, the Nature Inn at Bald Eagle State Park merges modern design and nature like no other. Working with Civil and Environmental Consultants, Inc. and SMP Architects, LLI Engineering provided HVAC, plumbing, fire protection, electrical, fire detection design, exterior building and site lighting, and implemented the LEED Certification process. The facility has geo-thermal heating and cooling, and a vast rainwater collection system used for all non-potable applications.

“The green design is groundbreaking,” Michelle Smithbauer, the park’s environmental education specialist, told The Burg. “It makes people feel better when they’re staying in a state park. It’s a less impactful way of staying in a hotel.”

FACADE RESTORATION OF DOWNTOWN PITTSBURGH TELECOM HIGH RISE

LLI Engineering's scope of work entailed masonry investigation, architectural and engineering design services, project management and construction administration.

Facade restoration included four structures with some more than a hundred years old. Water proofing, vapor barrier and insulation was carefully designed to ensure preservation of historic facade.

Working above busy downtown sidewalks and streets required coordination with multiple city and utility officials such as relocating bus stop, protecting electrical vaults, and renovating sidewalks.

CLEVELAND, OH

LLI Engineering designed a 7,200 sq. ft. data center with NOC and UPS support space for 243 server racks. The data center area included a 24" raised floor to route power and provided the required air conditioning.

Power for the data center required two separate 3000 amp utility company power feeds to two separate switchgears (A & B). The commercial power is backed up by two 750 kw standby generators. There are four UPS systems (two for the A buss and two for the B buss) which feed a total of sixteen power distribution units (PDU's).

To cool the data center a total of 8 computer room air conditioning units (CRAC) were installed around the perimeter of the room. Each CRAC is a nominal 30-ton unit and distributed conditioned air below the raised floor. The units are set up in an N & 1 configuration where 7 operate and 1 is standby. The UPS battery room is cooled by three CRAC units in an N + 1 configuration. These units are connected by common supply air ductwork and isolation dampers.

The entire facility is protected by a fire protection system above and below raised floor consisting of piping discharge nozzles and FE-25 cylinders.

CRANBERRY WOODS

Due to significant growth in the nuclear service industry, in March of 2007 Westinghouse Electric Company chose to relocate its corporate headquarters to an office park development known as Cranberry Woods located in Butler County, Pennsylvania.

LLI Engineering and IKM Incorporated formed a joint venture known as LLI/IKM to provide pre-construction, project programming and full engineering and architectural design services.

Site amenities include a large fitness center, large cafeteria, outdoor recreation facilities, enhanced meeting and conference areas.

UNITED STATES POSTAL SERVICE PROCESSING & DISTRIBUITION CENTER

LLI Engineering provided electrical and structural engineering for the replacement of the facilities three utility feed main-tie-main-tie-main switchgear including automatic controls.

The facility has to be fully functional at all times. Replacement was completed in phases and utilized a temporary switchboard to allow this replacement to occur with minimal outages.

Facility is operational 24/7.

LLI also provided engineering to install over 30 harmonic regulating transformers ahead of the feeders serving critical mail sorting equipment.

This project included replacing the incoming service conductors from two of the utility transformers

LLI Engineering has completed several projects for ALCOSAN in the past 30 years. 

Specific projects include commissioning and LEED consulting on the new Operations Building and the new Customer Service Building and laboratories. Additionally, LLI provided emergency trouble shooting services to correct significant issues with the operation of the main pump station and the main control room. Work included upgrading the control automation, correcting chilled water flow issues, and balancing ventilation issues. 

LLI has also provided other engineering firms support with design of flap gates and specific structural, mechanical, and electrical detailing of waste process systems.

PREK-7TH GRADE PRIVATE SCHOOL
Pittsburgh, Pennsylvania

LLI Engineering provided Interior Design services for a building renovation project at Penn Woods Classical Academy near Pittsburgh, Pennsylvania. The project involved interior renovations and finish updates to support the continued use of the facility as an educational environment.

The scope of work included coordination with the school and project team to address existing conditions and implement updates to interior finishes. Renovations were completed while maintaining alignment with the building’s functional requirements and applicable codes. LLI Engineering supported the project through design development and construction coordination as required.

TOWNHOUSE DEVELOPMENT
Mt. Lebanon, Pennsylvania

LLI Engineering is providing architectural and interior design services for a new townhouse development in Mt. Lebanon, Pennsylvania. The project includes the design of multiple residential units with coordinated interior layouts and finish selections.

The scope of work encompasses architectural planning, building design, and interior design services to support functional living spaces while meeting local zoning requirements, building codes, and project standards. LLI Engineering is working closely with the project team to develop cohesive exterior and interior designs appropriate to the surrounding neighborhood.

DESIGN AND CONSTRUCTION FOR TELECOM

In partnership with LLI Construction, LLI Engineering delivers full-service design and construction of telecom cabinets and enclosures tailored to meet the unique needs of the telecommunications industry.

We are proud to serve notable clients such as Verizon, SEGRA, and Horizon Telcom, Inc. Our recent projects span the East Coast, with installations in South Carolina, North Carolina, Virginia, West Virginia, Maryland, Pennsylvania, New York, Ohio, and Tennessee.

With a focus on quality, efficiency, and innovation, LLI Engineering ensures that your telecom infrastructure is built to last and designed to perform.