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< Back to all projects UNH PROCESS LANDFILL GAS PROJECT LOCATION: Durham, NH IN-SERVICE: 2009 SIZE & TECHNOLOGY: 7.9 MW Turbine/HRSG duct-Landfill gas/natural gas blend FIRM ROLE: Engineering and Design Waldron Engineering was contracted by EMCOR to design the installation of a landfill gas to energy system for the existing Siemens gas turbine and a HRSG duct-burner for the University of New Hampshire. Waldron was the Engineer of Record for the process landfill gas (PLG) project and assisted with work on the aspects of the landfill gas conditioning. The landfill gas is conditioned and blended with natural gas for the operation of the cogeneration facility. Waldron was responsible for providing a construction package that defined the work for the mechanical, civil, electrical and controls portions of the work. The construction specifications for the work were provided as part of the package. All the specs were coordinated with the existing UNH equipment and materials to maintain the consistency of the equipment in the plant. The UNH Cogeneration Plant consists of a 7.9-megawatt dual-fuel combustion generator train, including a HRSG (heat recovery steam generator) with a duct burner that produces 100,000 pounds of steam per hour and a 1,200-ton chilled water plant.

< Back to all projects HOWARD M. DOWN GENERATING STATION LOCATION: Vineland, NJ DESIGN START/COMPLETION: Spring 2010 – Winter 2010 SIZE & TECHNOLOGY: 64 MW Trent 60 Gas Turbine / Dilution Air SCR / Natural Gas Compression / Utility Sub-Station IN-SERVICE: Spring 2012 FIRM ROLE: Engineering Vineland Municipal Electric Utility (VMEU) needed to expand the generating base within their service territory. A plan was developed to install 50 MW of capacity adjacent to the existing Howard Down generating station in downtown Vineland. Waldron was selected to be the engineer of record for the design of a new peaking facility. Waldron developed an equipment purchase set of specifications for a nominal 64 MW peaking gas turbine generator and SCR system. The bids were evaluated, and a recommendation was made to VMEU based on best value to select the Rolls Royce Trent 60 prime mover for the Howard Down Unit #11 . Waldron developed a detailed design package around the Trent 60 engine and supported VMEU in the selection and oversight of a general contractor to implement the design. The plant was placed in service on-time for the summer season, 2012.

< Back to all projects MONTCLAIR STATE UNIVERSITY MICROGRID LOCATION: Montclair, NJ DESIGN START/COMPLETION: Spring 2011 – Spring 2012 SIZE & TECHNOLOGY: 54 MW Electric 52,000 lb/hr steam, 43,000 tons chilling / 1-Solar Taurus 60 / 1-Rentech HRSG / 1-York Model YK Electrically driven Centrifugal Chiller / 1-York Model YST Steam-driven Centrifugal Chiller SCHEDULE: In-Service 2013 FIRM ROLE: Engineer of Record The Montclair State University combined heating, cooling and power plant (CHCP) became fully operational in September 2013. The goal of the project was to provide the expanding 250-acre campus with efficient and environmentally friendly energy to meet its growing needs. The state-of-the-art facility was designed to provide 100,000 pounds/hr of 125 psig steam, 4300 tons of 42 °F chilled water and 5.4 MW of electrical power to the campus’ academic, administration and residential buildings. The project also included new steam and condensate distribution piping and chilled water supply and return distribution piping to the campus buildings. Waldron’s scope of work included full mechanical, electrical, instrumentation controls, civil, structural and architectural design and engineering services. Waldron worked closely with the project developer, DCO Energy and the University to ensure that all project programming goals were met. The specified and installed equipment is highlighted by a dual fuel, 5.4 MW (nominal) Solar Taurus 60 gas turbine-generator and a 52,000 pound/hr Rentech heat recovery steam generator which includes a natural gas-fired duct burner. Other major equipment included, two packaged auxiliary boilers, one steam turbine-driven centrifugal chiller, one electric-driven centrifugal chiller, cooling towers and medium and low voltage electrical switchgear.

< Back to all projects HARVARD BLACKSTONE – BOILER 11 UPGRADE DESIGN START/COMPLETION: November 2010 – June 2011 SIZE & TECHNOLOGY: 150,000 lb/hr dual fuel (natural gas and #6 oil), 400 psig steam boiler IN-SERVICE: November 2012 FIRM ROLE: EPC (Engineering, Procure, Construct), Commissioning In 2003, Harvard purchased the Blackstone Station in Cambridge, MA from NSTAR to insure a secure source of steam to serve the future campus expansion. Waldron was retained to provide technical due diligence for the purchase as well as develop a plan for Blackstone that would meet the Campus growth needs into 2020. The installation of Boiler 13 was the first step in the plan. After the successful installation of Boiler 13, the next step was the Boiler 11 upgrade. Waldron was once again brought on as the EPC contractor by Harvard University for the project. The project scope included an upgrade of the fuel delivery and control systems associated with Boiler 11 at Harvard’s Blackstone steam plant in Cambridge, MA. The proposed work involved a 150,000 lbs/hr dual fuel (natural gas and #6 oil), 400 psig steam boiler burner management and combustion control systems complete replacement. These upgrades modernized the fuel train and combustion controls for the industrial boiler which provides part of the Harvard campus steam supply.

< Back to all projects JAMAICA PRIVATE POWER COMPANY LOCATION: Rockford, Jamaica DESIGN START: 1993 IN-SERVICE: Commercial Operation, Q1 – 1998 SIZE & TECHNOLOGY: 64 MW Heavy Fuel Oil (HFO) Slow Speed Diesel Engines with Condensing Steam, Turbine Generator FIRM ROLE: Owner’s Engineer, Start-Up and Commissioning Waldron Engineering was engaged to develop a design concept and technical specification to enable the owner to solicit turnkey construction bids. Subsequent to the initial work, we were retained to start-up; commission and performance test this facility. Waldron acted as the Owner’s Engineer – involved in the project development phase and assisted the owner to develop an EPC RFP and EPC bid evaluation, along with reviewing contractor design and construction submittals. Waldron participated in the project design and construction meetings. In the start-up and commissioning phase Waldron assisted with the equipment start-up crew to start-up the major equipment, develop commissioning plans and performed system commissioning tasks. Waldron also developed the facility performance test protocol, analyzed performance test results and developed the final performance test report. The facility contains two MAN slow speed 30 MW reciprocating engines exhausting into two pressure forced circulation heat recovery steam generators and one 4 MW steam turbine.

< Back to all projects NATIONAL INSTITUTES OF HEALTH LOCATION: Bethesda, MD STUDY DATE: May 2016 – April 2017 SIZE & TECHNOLOGY: Combustion Turbine, Chilled Water Storage, Electrical Distribution System FIRM ROLE: Feasibility Study NAICS: 541330, 237130, 237120, 236220, 221112, 221117, 221118, 221121, 221122 Waldron performed a comprehensive utility study for NIH to evaluate the possibility of expanding the existing utility plant. The campus is presently served by a nominal 23 MW cogeneration facility, which is located adjacent to an existing thermal plant consisting of 60,000 tons of nameplate chilled water production capacity, with both steam and electric motor driven chilling capabilities, and five boilers with a nameplate production capacity of 800 kpph. Waldron developed a model for the entire campus utilizing existing utility data, and taking into account infrastructure upgrade projects that were planned, but not yet implemented, including an upgrade to the existing combustion turbine, a modification to the campus electrical distribution system, and the introduction of approximately 8 million gallons of chilled water storage. As part of the analysis Waldron reviewed fuel supply opportunities with local utility, identified electrical switchgear upgrades that would be required to support a new cogeneration option, and analyzed multiple sizes and types of generation to identify the optimal technology and size for additional on-site power generation. As part of the analysis, Waldron reviewed air emission constraints on generator sizing as well.

< Back to all projects FAA – EMERGENCY GENERATOR PROJECTS LOCATION: Multiple Locations DESIGN START/COMPLETION: 2002 – 2010 SIZE & TECHNOLOGY: High Reliability Electrical Systems FIRM ROLE: Engineering Design Waldron served as the Engineer for a series of emergency/standby generator upgrades and/or replacements at radar sites across the United States for the Federal Aviation Administration. A typical project included an engine generator, automatic transfer switch, load bank, HVAC upgrades and a fuel tank/pump system.

< Back to all projects CLAYVILLE PEAKING PLANT LOCATION: Vineland, NJ DESIGN START/COMPLETION: Spring 2014 – Spring 2015 SIZE & TECHNOLOGY: 64 MW Trent 60 Gas Turbine / Dilution Air SCR / Natural Gas Compression / Utility Sub-Station IN-SERVICE: Spring 2015 FIRM ROLE: Engineering Waldron was selected as the Engineer of Record for the design of a new peaking facility located adjacent to the Atlantic City Electric Clayville Substation in Vineland, NJ. With the success of the Waldron designed Howard Down Unit #11 project, Vineland Municipal Electric Utility chose to further increase capacity within their service territory. The option was exercised for the purchase of a second Trent 60, SC and natural gas compressor. Waldron developed a detailed design package around the Trent 60 engine and substation interconnection. In addition, Waldron supported VMEU in the selection and oversight of a general contractor to implement our design. The plant was in-service in the Fall of 2015.

< Back to all projects MILFORD REGIONAL MEDICAL CENTER MICROGRID LOCATION: Milford, MA DESIGN START: January 2015 SIZE & TECHNOLOGY: 800 kW Reciprocating Engine IN-SERVICE: December 2015 FIRM ROLE: Engineering, Construction, Commissioning The installation of a new combined heat and power (CHP) system at the Milford Regional Medical Center was executed as a fast track project by Waldron. Milford was looking for cost savings and resiliency for their campus. The new CHP system included a packaged 800 kW natural gas fired Caterpillar engine and waste heat recovery. Heat from the jacket water system and the engine exhaust are utilized to produce 15 psig steam for the hospital low pressure system. Energy from the engine lube oil system was recovered and utilized for the domestic hot water system. The CHP system will provide operational cost savings and in the event of a power outage, could supplement the emergency diesel engines to provide power to the hospital. The project was completed in 10 months, from notice to proceed to utility acceptance testing. 600 kW and 600 kWh Energy Storage System (ESS) operating in parallel with the existing CHP and utility. The ESS has the capability to black start the CHP and together can operate isolated from the Grid. With this new ESS addition, Milford Hospital established a highly resilient microgrid system with the option to add PV or other renewable generations. This project is endorsed by MA Dept of Energy Resource (DOER) Resilience Program. An economic benefit of ESS, is that it is able to do peak shaving to reduce the overall energy costs. Scope of work included: Construction Permitting Balance of Point—Detailed Design Review CAT Supplied Equipment Submittals Elevated Gas Permit Variance Construction Commissioning

< Back to all projects NATICK SOLDIER SYSTEMS CENTER LOCATION: Natick, MA STUDY DATE: May 2017 – July 2019 FIRM ROLE: Feasibility Study NAICS: 541330, 237130, 237120, 236220, 221112, 221117, 221118, 221121, 221122 Waldron performed a study on the behalf of Constellation to evaluate the installation of a CHP plant at the NSSC campus. The basis for the study was an hourly utility model that was developed from utility load and cost information supplied by NSSC. The objective of the project was to determine the optimal-sized prime mover, evaluate the financial performance of the project, and develop a cost estimate to construct and commission the facility. Waldron also evaluated the utility modifications and interface changes required to operate the facility electrically as a Microgrid with thermal distribution loops. The recommended configuration is proceeding as a third party paid ESPC project.

< Back to all projects MRMC BATTERY ENERGY STORAGE SYSTEM LOCATION: Milford, MA DESIGN START: November 2018 IN SERVICE: January 2020 SIZE & TECHNOLOGY: 710 kW/510 kW-Hr FIRM ROLE: Engineering, Construction Management and Commissioning The installation of a Battery Energy Storage System at the Milford Regional Medical Center was executed as an EPC (Engineer-Procure-Construct) project. Milford was looking for resiliency and peak demand reduction for their campus. The new BESS supplements operation of the existing CHP system which included a packaged 800 kW natural gas fired Caterpillar engine and waste heat recovery. The now Hybrid-CHP system will provide operational cost savings and in the event of a power outage, it could supplement the emergency diesel engines to provide power to the hospital. The project was installed in association with the MA-DOER. Scope of work included: Engineering and Design Procurement Permitting Construction Commissioning Turn-over

< Back to all projects BRIGHAM & WOMEN’S HOSPITAL MICROGRID DESIGN START/COMPLETION: February 2013 – July 2014 SIZE & TECHNOLOGY: 4 MW Reciprocating Engine Generator, 125 psig Waste Heat Boiler, Jacket Water Heat Recovery, (2) 700 BHP Firetube Boilers IN-SERVICE: Summer 2016 FIRM ROLE: Feasibility Study, Schematic Design, Design Development, Detailed Design Waldron Engineering & Construction, Inc. performed an initial feasibility study for Brigham and Women’s Hospital (BWH) to evaluate the feasibility and economic value of installing a Combined Heat and Power Plant (CHP) in their new Brigham’s Building for the Future (BBF). The primary purpose for the CHP was to provide operational cost savings to the hospital and a level of resiliency to serve the energy needs of the facility. In addition to studying various CHP technologies, including combustion turbine generator and reciprocating engine generators, Waldron appraised the value of supplying electrical and thermal energy not only to the new BBF building, but also to the neighboring Shapiro building which is part of the Brigham and Women’s Hospital campus. Upon identifying that a 4 MW reciprocating engine based CHP was the optimal size and technology to serve the two buildings, Waldron executed the detailed design of the entire central energy plant. Waldron served as the engineer of record for the project which included a 4 MW recip-engine based CHP plant with dual fuel firetube boilers that were installed in the basement of Brigham & Women’s Hospital Building for the Future in Boston.