< Back to all projects UMASS ENERGY STORAGE FEASIBILITY STUDY LOCATION: Worcester, MA START: Oct. 2018 COMPLETION: Dec. 2018 FIRM ROLE: Engineer, Planner, Consultant Waldron has been working on projects on the UMass Medical School (UMMS) Campus for over 20 years. For this project Waldron was tasked with doing a feasibility study on installing an energy storage system for their existing combined heat and power plant (CHP). The scope of services for this project included the following: 1. Develop a typical year 8760 model of the operation of the CHP and utility purchases as the base case model. 2. Develop three different cases of an economic analysis with the energy storage system in conjunction with the CHP to determine the energy saving from peak demand reduction, energy arbitrage and other operation efficiency optimization. 3. Define operational improvements associated with the installation of the energy storage system and the components required to achieve these improvements. Improvements will include: Resiliency improvements Bus stabilization benefits when operating in island mode. Load balancing when operating in parallel and not exporting. Black start capabilities (for existing CHP) 4. Identify the electrical equipment and control system needed to successfully comply with the incentives, achieve the economic benefit and operational benefits. 5. Develop a cost opinion that includes equipment, installation, engineering, commissioning, project administration, interconnect cost related to resilience equipment and other costs as may be required in the incentive program 6. Assist UMMS in the preparation of the application for an energy storage grant.

< 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.

< Back to all projects FRITO-LAY MICROGRID LOCATION: Dayville, CT DESIGN START/COMPLETION: March 2008 – September 2009 SIZE & TECHNOLOGY: 4.5 MW Electric, 100,000 lb/hr steam gas turbine / HRSG IN-SERVICE: Fall 2009 FIRM ROLE: EPC (Engineering, Procure, Construct), Start-up, Commissioning, Close-Out In an effort to manage production costs in the Northeast, Frito-Lay chose to reduce overall energy costs by installing a combined heat and power plant at their Killingly, CT facility. Waldron was selected as the EPC contractor to install a gas turbine based CHP plant in a stand alone building adjacent to the manufacturing plant. The prime mover selected was the 4.5 MW Centaur 50 gas turbine, manufactured by Solar Turbines. Heat is recovered in a Rentech supplemental fired boiler that produces up to a peak steam output of 60,000 lb/hr. Integral in the boiler is a SCR system to control NOx emissions to 2.5 ppm at the stack. The plant was named a Pace Setting Plant in the Combined Cycle Journal, second quarter 2009.

< 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 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 BAYSTATE MEDICAL CENTER MICROGRID LOCATION: Springfield, MA DESIGN START: July 2015 IN-SERVICE: December 2017 SIZE & TECHNOLOGY: Mercury 50 Gas Turbine Generator, Duct-fired, heat recovery steam generator, Steam absorption chiller, Black Start Reciprocating Engine, Natural Gas Compression System, Medium and low voltage switchgear FIRM ROLE: Engineer, Design, Equipment Procurement, Construction Waldron Engineering & Construction is the design-builder for a new natural gas fired Combined Heat and Power (CHP) project located at the largest level I trauma center hospital in western Massachusetts, Baystate Medical Center in Springfield. The project includes a new power plant building, the first Solar Turbines Mercury 50 Gas turbine generator to be permitted in Massachusetts, a duct fired heat recovery steam generator, a new steam absorption chilling system, a new natural gas compression system, a new black start reciprocating engine, new medium and low voltage switchgear as well as modifications to an existing steam and chilled water plant. The project’s equipment has also been engineered for the future installation of a hot water system to further reduce the hospitals energy costs and carbon footprint. Waldron’s prime construction subcontractor on the project is Cianbro Corporation. The project has a unique financing structure that includes a federal grant from the department of housing and urban development, incentives from the local electric utility and grants from the state of Massachusetts. The project will provide energy cost savings for the medical center for years to come.

Waldron is a full-service analytics, engineering, and construction management firm with a focus on the energy industry. We deliver the sustainable, resilient, and cost-effective energy solutions our future requires. ENERGY SOLUTIONS FOR THE WORLD AHEAD Waldron is a full-service analytics, engineering and construction management firm with a focus on the energy industry. We deliver the sustainable, resilient, and cost-effective energy solutions our future requires. Waldron DELIVERING ENERGY SOLUTIONS Hybrid CHP Renewable Gas Hydrogen Solar Organic Rankine Cycle (ORC) Heat Pumps MICROGRID Battery Energy Storage Systems Biomass Compressed Air Energy Storage WE ARE Analysts Engineers Construction Managers Commissioning Agents See How We Work Our projects have reduced greenhouse gas emissions equal to the removal of 1 million cars from the road We have successfully completed more than 1500 projects for over 400 clients "After an extensive request for proposal process, we selected Waldron Engineering & Construction from more than a dozen other proposals. Waldron successfully executed a $27 million dollar Guaranteed Maximum Price (GMP) project ahead of schedule and $500,000 under budget." — Healthcare Client "Waldron is deeply experienced at dealing with the uncertainties and complexities of integrating a modern utility plant into an older manufacturing process with a flexible, nimble, and creative can-do attitude." — Biotech Client "Waldron brings a thoughtful, practical, efficient, and creative approach to completing our project on a tight timeline and on budget. The plant produced over 94% of the electricity and steam requirements for the paper mill, winning an award for clean power." — Manufacturing Client "To ensure on-time project completion, we chose Waldron for their combined industrial setting construction experience, practical engineering design approach, and project track record." — Campus Client TWA Flight Center Hotel Energy Center University of New Hampshire: Renewable Natural Gas Milford Regional Medical Center: Battery Energy Storage System Baystate Medical Center: Microgrid Yale University: Feasibility Study Brigham & Women's Hospital: Microgrid LEADERSHIP Terence Waldron, P.E. CEO John Sweet, P.E. President Grant Page VP of Construction Michael Mark, P.E. VP of Engineering For thirty-four years, Waldron Engineering & Construction has delivered custom-engineered energy solutions to a diverse array of clients. From turnkey facilities to fresh insights that drive decision-making, we offer resilient, innovative and constructible solutions built to thrive in today’s dynamic utility landscape. Transforming the Future of Energy CONTACT CONTACT Inquiries For any inquiries or questions, please call: 603-772-7153 or fill out the following form Contact Us First Name Last Name Email Subject Message Submit Thanks for submitting! Office Waldron Engineering & Construction, Inc. Waldron Engineering of New York, P.C. 37 Industrial Drive, Suite G-1 Exeter, New Hampshire 03833 Telephone: 603-772-7153 Email: sales@waldron.com Employment Waldron is always interested in qualified candidates for employment. If you would like to be part of our award-winning organization, please send inquiries with your resume to: msantosuosso@waldron.com No phone inquiries or recruiters please. Click here for current job postings.

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. 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 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 FRASER PAPER MILL/NEXFOR LOCATION: Edmundston, New Brunswick DESIGN START: 1995 DESIGN COMPLETION: 1998 IN-SERVICE: Commercial Operation beginning early 1998 SIZE & TECHNOLOGY: 45 MW net, Hydrograte Stoker, Biomass-Fired Boiler FIRM ROLE: Owner’s Engineer, Engineering, Construction Management and Commissioning Waldron Engineering was engaged to act as the owner’s engineering group during the development of a biomass fueled cogeneration facility for a 1300 ton per day paper mill in Edmundston. The installed facility generated 45 MW of electricity and an equivalent thermal load of 60 MW. Waldron developed the plant’s conceptual design. Additionally, Waldron dealt with boiler efficiency analysis, thermodynamic cycle design, and conceptual layout, technical and economic optimization of design. Finally, Waldron developed and evaluated the EPC contract bids. This project successfully meets all thermal output designed at concept. As of 1998 the Fraser Cogeneration Power Plant was the largest biomass-fueled boiler in North America.

< 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 UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL LOCATION: Worcester, MA DESIGN START: Winter 2010 DESIGN COMPLETION: Winter 2011 SIZE & TECHNOLOGY: 7.5 MW Electric, 60,000 lb/hr Steam, 4,000 ton Electric Chiller, Dual Fuel Combustion Turbine FIRM ROLE: Engineering, Construction Management, Technical Support and Commissioning The University of Massachusetts Medical School (UMMS) in Worcester is a large medical hospital, research center, and medical school campus. Due to continuing campus expansion, their existing cogeneration facility could not meet capacity. Energy efficiency and reliability were key concerns in developing plant options. Waldron Engineering was selected to do the engineering and design of the UMMS cogeneration plant expansion. The cogeneration plant expansion included a 7.5 MW dual fuel combustion turbine, a fired HRSG rated at 60,000 lb/hr, 1100 psig and 850ºF, a new natural gas compressor, a new 4000 TR electrical chiller and a new plant master electrical control system with intelligent load shedding scheme that greatly enhanced the overall electrical system reliability. The new cogeneration system boosted the overall efficiency from 55% to over 70%, exceeding expectations. The project scope included: building structural design electrical design—included interconnection between the existing generators and the new electrical system to shape a complete load shedding scheme mechanical design— included high pressure steam system connecting with the existing steam system new HP natural gas system modified an existing 80,000 gal no. 6 fuel oil system to no.2 fuel oil system.