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< Back to all projects YALE UNIVERSITY ELECTRICAL WORK LOCATION: New Haven, CT PROJECT DATES: 2013 – 2016 FIRM ROLE: Designer, Commissioning Waldron has completed multiple projects for Yale University. Below are some of the electrical focused projects that have been completed. 1. Supplemental Generator Project a. Designed and installed 3 mobile generators to provide supplemental power to the Yale University Campus. The mobile generators operate in parallel with existing turbine generators and emergency generators. The three mobile generators run in parallel with each other and have load share capability. b. Controls of the generators are designed to operate the generator from three locations, local manually, chiller plant control room-automatically and the central power plant control room automatically. Controls for the new switchgear were connected into the DCS and existing synch panel for remote control. Raise/Lower voltage and frequency, synch check and other interlocks will be designed as needed. c. Arc Flash Study completed for all new equipment. d. Developed the Sequence of Operation for the generator control system. 2. New Vista Key Control Project a. Designed and commissioned the new Vista Switch Key Interlock Controls between four existing 15KV breakers. The Vista Switch Key Interlock Controls allow the associated 15 KV circuit breaker to be closed on a dead bus when the vista switch is open. This energizes the vista switch on the campus side of the switch and allows the utility to perform phase checks at the vista switch. The vista switch is not allowed to close if the key interlock switch is activated. All synchronizing remains across the 15KV breakers. b. Developed the Sequence of Operation for the Vista Switch Key Interlock control system.

< Back to all projects NATIONAL AERONAUTICS & SPACE ADMINISTRATION LOCATION: Hampton, VA IN-SERVICE: 2008 SIZE & TECHNOLOGY: Steam and Condensate Distribution System FIRM ROLE: Engineer of Record NASA undertook a major steam distribution redesign project to replace an aging system that could no longer support the integration of two remote steam generating plants and was having water hammer problems that were causing structural challenges. Waldron was selected to engineer and design a new system for steam supply and condensate return for NASA’s Langley Research Center. The system installed over a mile of piping and integrated many buildings on the center’s campus into the distribution system that had to be capable of receiving steam from two remotely located steam generating plants. The system consisted of above ground sections, direct buried sections and underground utility tunnel-based sections, all support and anchoring components and flow and pressure control devices and instrumentation. Steam conditions are 400 psig saturated steam and flow rate of 75,000 lb/hr.

< Back to all projects NEWINGTON ENERGY LOCATION: Newington, NH IN-SERVICE: May 2004 SIZE & TECHNOLOGY: 2x-GE 7FA Combustion Turbines with dry, low NOx Combustors FIRM ROLE: Owner’s Engineer, Design Engineer, Commissioning Waldron Engineering was engaged to act as the Independent Engineer on behalf of the owner, Con Edison Development. The installed facility generates 535 MW of electricity using natural gas or No. 2 Fuel Oil. Emissions is controlled by using a combination of low NOx combustion and SCR in the HRSG. Waldron had a full-time presence on-site to supervise the design, construction, commissioning and testing of the plant on the owner’s behalf.

< 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 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.

COMMISSIONING At Waldron, commissioning is a thoroughly mapped, step-by-step approach designed to explore the entire operating envelope of a facility and demonstrate the project’s key outcomes have been met. Because of our focused expertise in energy system engineering, we are able to remain constructively engaged throughout the process of testing, troubleshooting, and optimizing a facility’s performance. STEP-BY-STEP GUIDANCE PROJECT DEFINITION In-depth commissioning requires a thorough understanding of project goals. As with all of our services, the starting point is a detailed understanding of the specific financial, environmental and functional criteria established at the project outset. This knowledge informs the planning process. ​​ PLANNING There are three levels of planning: project level sequencing of system energization and functional testing with a facility, detailed step-by-step commissioning procedures for each system that guide the start-up and testing processes, and daily plans convened by Waldron’s commissioning manager on-site to coordinate all parties associated with or affected by the work. Much of our work is accomplished in operating facilities and requires a thorough understanding of the impacts commissioning will have on existing systems, as well as the ability to develop contingency plans. ​ TESTING AND RESPONDING Commissioning is not a straight line from A to B: a thorough commissioning process is a daily encounter with the unexpected. Waldron’s commissioning teams excel at providing leadership and technical guidance to clients, contractors and operations teams when troubleshooting is necessary, and are capable of efficiently realigning resources to keep the process moving forward. Given the opportunity, we are not passive observers, but active contributors to the resolution of difficulties encountered. DOCUMENTATION Waldron provides daily reports of commissioning activities, as well as annotated procedures that document the step-by-step outcomes realized during the commissioning process. The result is a wealth of information for the facility owners and operators. It is possible to understand exactly what was tested, what worked and what didn’t and why, and how the deficiencies were resolved. The result is a clear roadmap for future operations.

< Back to all projects SIMMONS UNIVERSITY INFRASTRUCTURE IMPROVEMENT PROJECTS LOCATION: Boston, MA DESIGN START: February 2011 PHASE I & II COMPLETE: 2012 PHASE III COMPLETE: 2016 FIRM ROLE: Owner’s Engineer Services, Construction Support, Start-Up & Commissioning Assistance Simmons University retained Waldron Engineering to perform work on various infrastructure improvement projects at their Boston campus. Phase I involved the development of design plans and specifications for the complete replacement of direct-buried steam and condensate distribution piping at the residence campus. The piping network serves the heating and domestic hot water needs of eight student housing buildings and a dining/administration building. Waldron also performed construction support services during the fast-track installation. Phase II was to examine options for a complete relocation of the primary electrical service at the main campus. Drawings and specifications of the preferred option were then developed for the relocation effort. Waldron’s scope also included utility coordination, construction support services and start-up assistance. Phase III involved developing and assisting with the implementation of a phased plan for the complete replacement of boilers and auxiliary steam plant equipment at the main campus Central Heating Plant. Phase 1 and 2 of the project were successfully completed in 2012 with two new boilers going online and Waldron completed Phase 3 in early 2016.

< Back to all projects ERVING INDUSTRIES MICROGRID PROJECT LOCATION: Erving, MA DESIGN START: November 2014 SIZE & TECHNOLOGY: 5.6 MW Solar Turbine, Taurus 60 dual fuel combustion turbine with duct-fired heat recovery steam generator IN-SERVICE: December 2015 FIRM ROLE: EPC (Engineer, Procure, Construct), Commissioning Waldron served as the EPC (engineer, procure, construct) contractor for the Erving Paper CHP Project. The job consisted of a new CHP and building located adjacent to the mill’s existing steam plant, and included a Solar Turbines Taurus 60 dual fuel combustion turbine with a duct-fired, 600-psig heat recovery steam generator, connection to the mill’s existing compressed natural gas delivery system, a synthetic natural gas (propane + air) mixing system for secondary fuel to the duct burner, a revised 13.8 kV electrical interconnection with new switchgear, a black start generator, and various upgrades to the existing utility systems necessary to accommodate the project. Waldron worked with the mill and a team of subcontractors to complete engineering, procurement, construction and commissioning of this fast-track project within eighteen months from notice to proceed, working within and around the operating mill.

< Back to all projects PORTSMOUTH NAVAL SHIPYARD LOCATION: Kittery, ME SIZE & TECHNOLOGY: One—1.5 MW/2.5 MW-HR Energy Storage System DESIGN START: 2019 IN SERVICE: Spring 2021 FIRM ROLE: Engineer of Record Ameresco expanded the existing Combined Heat & Power (CHP) plant at the Portsmouth Naval Shipyard (PNSY) in Kittery, Maine. The CHP offset electrical purchases from the incumbent electrical utility and simultaneously produced steam to meet the facility’s requirements. Waldron’s scope included all engineering and the preparation of a detailed construction documents package to include all mechanical, electrical, civil-structural and instrumentation-controls requirements for the project. As part of the CHP expansion was the addition of one 1.5 MW/2.5 MW-hr Battery Energy Storage System (BESS). The BESS was attached to the CHP to create a hybrid-CHP microgrid. One 7.6 MW gas turbine generator One natural gas compressor package One heat recovery steam generator (HRSG) with fuel assisted firing (duct burner) capable of producing up to 70,000 lb/hr of steam at 200 psig and 420°F A new fully upgraded PLC-based control system for all new and existing CHP plant equipment. One (1) 1.5 MW/2.5 MW-hr Battery Energy Storage System The new CHP and BESS ties into and connects to the existing steam, condensate, water, sewer, and electrical systems. It has an automated MV switchgear and microgrid control system.

CONSTRUCTION MANAGEMENT Proven construction management is required to ensure your project is delivered on time and on budget. Our construction management services use a range of contract models such as; Owner’s Agent, CM Fee, Lump Sum, EPC or Guarantee Maximum Price (GMP). WHAT WE DO Waldron adds significant value to utility projects – our main focus is the construction of these types of ventures – it’s what we do. PRECONSTRUCTION SERVICES Budget Development and Estimating Construct-ability Reviews Value Engineering Scheduling Cash Flow Development Preparing Work Breakdown Packages to Optimize Subcontractor and Vendor Capabilities Prequalification of Subcontractors and Vendors Site Specific Safety Plans Project Specific Quality Plans Site Logistics Plans ​ CONSTRUCTION MANAGEMENT Bid Package Preparation Bid Process Management Construction Coordination and Oversight Equipment and Material Receiving and Warehousing Reporting and Documentation Progress Billing Reviews Change Order and Claims Evaluation Progress Monitoring and Reporting Cost Reporting Safety Plan Monitoring and Reporting Quality Plan Monitoring and Reporting Turnover Package Preparation to the Commissioning Team

< 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 HARVARD BLACKSTONE – BOILER 13 DESIGN START/COMPLETION: Spring 2006 – Summer 2007 SIZE & TECHNOLOGY: 5.0 MW Electric, 150,000 lb/hr steam fired boiler / backpressure steam turbine IN-SERVICE: Fall 2008 FIRM ROLE: EPC – Engineering, Procurement Support, Construct, Commissioning In 2003, Harvard purchased the Blackstone Station 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. Waldron was challenged by Harvard to develop a plan for Blackstone that would meet the Campus growth needs into 2020. The first step in the plan was the installation of Boiler 13, underground fuel oil storage, a steam turbine generator and a complete upgrade to the electrical and mechanical systems. Waldron’s scope was to develop the construction plans and specifications, construction management of the project for Harvard, commission, and test the new equipment.