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< Back to all projects MIT LINCOLN LABORATORY FEASIBILITY STUDY LOCATION: Bedford, MA PROJECT START: October 2019 PROJECT COMPLETION: April 2020 FIRM ROLE: Feasibility Study MIT Lincoln Laboratory (MITLL) is a federally funded research and development center chartered to apply advanced technology to problems of national security. MITLL occupies ~2.5 million GSF. Of that 2.5M GSF, 2.0M GSF is located on 110 acres (20 acres of which are MIT property) on the eastern perimeter of Hanscom Air Force Base. The majority of the campus buildings were constructed during the 1950s and 1960s. The last major building, Building S, was completed in 1994. MITLL is in the process of reviewing its real estate needs as well as beginning the implementation of a series of phased projects that will reshape the campus. MITLL is planning a complete revitalization of the campus which includes numerous new facilities. Waldron was retained to develop a Utility Master Plan to support both the new and existing facilities. The plan includes our hybrid approach to central plants, combining solar PV, battery energy storage system and trigeneration into a single centralized plant that will minimize utility cost, minimize greenhouse gas impacts, and provide for 100% supply of utilities in the event of a utility outage.

< 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.

< Back to all projects UMASS AMHERST LOCATION: Amherst, MA START: Dec. 2017 COMPLETION: May 2018 FIRM ROLE: Engineer, Planner, Consultant Waldron Engineering & Construction, Inc. developed a comprehensive, 8,760-hr campus utility model that was used to evaluate various alternatives for adding steam production capacity to the existing Central Heating Plant. The model included existing high and low pressure steam generators, an existing combustion turbine with heat recovery, two backpressure steam turbines, three steam pressures, and multiple fuels, as well as various new technologies that were considered for addition. Tariff models for natural gas and grid electricity based on hourly equipment dispatch. Electric feeder loading was incorporated into the model, such that distribution constraints limited the electrical output of the generators, which enabled evaluation of savings associated with the infrastructure upgrade alternatives. The model was used to calculate the GHG emissions benefits/costs for various operational strategies being tested. The study incorporated assessments of financial/ environmental impact of batteries, additional renewable generation, and energy conservation measures on campus. The planning tool Waldron created, enabled an in-depth analysis of the financial and environmental outcomes associated with integrated various technologies into the UMass micro-grid. The model was used to explore the cost per unit of GHG reduction associated with various technology options, including building-integrated renewable technologies such as solar thermal, geothermal, and pellet-fuel biomass boilers.

< Back to all projects UMASS POWER PLANT & DISTRIBUTION INFRASTRUCTURE SYSTEM STUDY LOCATION: Worcester, MA START: Fall 2018 COMPLETION: Spring 2019 FIRM ROLE: Engineering Consultant Waldron has been working on projects on the UMass Medical School Campus for over 20 years. The goal of this power plant and distribution infrastructure system study was to develop the most effective solution from a life cycle perspective to meet the evolving needs of the campus over the next 20—30 years. The three utilities that were studied included electric, steam and chilled water. As part of this project, Waldron performed an assessment of existing equipment and infrastructure, reviewed the current operating strategy, developed a conceptual upgrade to the campus metering scheme, and reviewed over twenty capital projects for their potential benefits to the system. For each of these capital projects Waldron conceptualized a project approach, calculated the life cycle outcomes for the campus using an 8,760-hr utility model, developed capital cost budgets for each, and also reviewed the level of urgency and environmental impacts of each. The project included hydraulic modeling of the steam and chilled water distribution systems, modeling of the electrical distribution system, and development of an 8,760-hr utility model with dispatch algorithms for the combustion turbine, three steam turbines, boilers and chillers within the UMMS facility. These models enabled investment grade accuracy for the life cycle cost analysis associated with each of the capital upgrades that were considered for the facility.

< 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.