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< Back to all projects BIOGEN MICROGRID LOCATION: Cambridge, MA DESIGN START/COMPLETION: Summer 2004 – Winter 2006 SIZE & TECHNOLOGY: 5.0 MW Solar Taurus 60 turbine with HRSG & SCR IN-SERVICE: Commercial Operation, Winter 2006 FIRM ROLE: Engineering, Construction, and Commissioning Support Biogen, a world leader in research and development of multiple-sclerosis treatment drugs required a solution for the high price and poor reliability of utility service at their Cambridge, Massachusetts campus. The solution came in the form of a new central energy plant to serve six buildings with electricity and five with high pressure steam. Waldron served as the engineer of record for the CHP facility which is located in the basement of the biopharma research building. The facility included a dual fuel, 5 MW combustion turbine with a heat recovery steam generator, an SCR system, two dual fuel package boilers, liquid fuel storage, steam distribution system upgrades, and a consolidation of the campus-wide electrical distribution system. The facility was designed to operate with very low noise and vibration and is located one floor below a normally occupied, mixed-use office environment. The scope of services for this project included the following: Dual Fuel Solar Taurus 60 Turbine/Generator 50,000 lb/hr gas fired heat recovery steam boiler with an SCR and CO catalyst Two 50,000 lb/hr Package Boilers Condensate Receiver Deaerator Water Treatment System CEM System New Electrical Distribution System with Switchgear New Steam Distribution System Control Systems

< 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.

< 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 BRIGHAM & WOMEN'S BATTERY ENERGY STORAGE SYSTEM LOCATION: Boston, MA DESIGN START: November 2018 DESIGN COMPLETION: December 2019 SIZE & TECHNOLOGY: 1 MW/660kW-Hr FIRM ROLE: Engineering, Construction Management and Commissioning The installation of a Battery Energy Storage System (BESS) at the Brigham & Women’s Hospital was executed as an EPC (Engineer-Procure-Construct) project. BWH was looking for resiliency and peak demand reduction for their campus. The new battery energy storage system supplements operation of the existing CHP system which included a 4 MW 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, 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 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.

Services Waldron delivers custom-tailored, full-service energy solutions for our clients. Our unique blend of talent, expertise and innovation drives every service we offer. Multi-Discipline With structural, electrical, controls, and mechanical engineering in-house, Waldron delivers integrated, fully-coordinated designs that capture all key project elements. Vertically-Integrated Waldron’s experience is informed by active participation in every phase of an energy project’s life cycle, from initial development through construction to start-up and commissioning, including delivery of turnkey projects. Utility Grade Waldron’s design packages are detailed, coordinated, and comprehensive. We deliver a “utility grade” standard of care by conveying fully engineered system designs with the essential details required to construct your facility. Energy-Focused Energy generation, storage, and distribution projects are what we do. Because of this, each and every day on the job expands our market-leading expertise. Customer-Centric Waldron emphasizes pragmatic, proactive problem-solving on behalf of our clients. Flexibility, responsiveness, and transparent communications are hallmarks of our approach. Performance Guaranteed Given the opportunity, Waldron will deliver turnkey energy generation and distribution projects backed by performance guarantees. ANALYTICS Waldron’s suite of analytical tools has been developed specifically to explore the complex interactions of microgrid systems. We are adept at mapping the technological, financial, regulatory and environmental parameters that shape an energy project, and delivering the insights required to manage your future with confidence. ​ LEARN MORE ENGINEERING Waldron has extensive experience in the engineering and design of energy generation and distribution systems. We excel at developing fully integrated design packages tailored to your needs, and steering them through construction. ​ LEARN MORE CONSTRUCTION MANAGEMENT Waldron’s construction management team is focused solely on the construction of central energy facilities and utility distribution systems. We can provide the program management, pre-construction Services and construction management required to ensure your project is delivered on time and on budget. ​ LEARN MORE COMMISSIONING Waldron’s startup, commissioning and performance testing expertise provides the bridge between construction and commercial operation. We have a proven track record in the development and successful execution of detailed commissioning plans for plants ranging from institutional central heating and cooling facilities to full-scale utility power stations. ​ LEARN MORE

< Back to all projects NASHUA WASTEWATER TREATMENT FACILITY LOCATION: Nashua, NH DESIGN START: November 2017 DESIGN COMPLETION: March 2018 IN-SERVICE: August 2020 SIZE & TECHNOLOGY: 2 x 225 kW Engine Anaerobic Digester Gas/Natural Gas Blend FIRM ROLE: Engineer, Permitting Support, Commissioning Waldron performed a detailed evaluation of the existing cogeneration building at the Nashua Wastewater Treatment Facility (NWTF). The evaluation included the existing piping, renewable gas production, the two boilers, heat exchangers, gas cleaning room, the exhaust gas flare, and gas hold tank feed system. Waldron provided a preliminary design report on findings and recommended solutions. The renewable gas firing option allowed considerable financial and environmental benefits. Waldron was the Engineer of Record, environmental and electricity utility permitting agent for the project. The project included the replacement of an existing 300 kW engine generator and associated auxiliary equipment with two 225 kW engine generators, gas blending system for easy startup and to maintain consistent fuel gas quality at the engines, associated heat exchangers, new control system, and new electrical switchgear which enables net metering at the facility. The new design benefited the wastewater facility with significant energy savings and increased the overall operating efficiency, flexibility, and redundancy.

Anchor 1 TERENCE WALDRON, P.E. CEO ​ Terry attended Monsignor Bonner High School in the suburbs of Philadelphia. There he became a member of the school’s crew team, spending afternoons rowing on the Schuylkill River. Prompted by his thirst for technical knowledge and desire to advance his rowing, he went on to Columbia University in New York City. In 1982 he graduated from Columbia with a Bachelor of Science degree in Engineering Mechanics with a strong concentration in applied mathematics. ​ During his tenure at Columbia he worked as an intern with Stone and Webster, joining the firm full time after graduation and working on the design of nuclear power plants. Foreseeing the decline of the nuclear power industry, he moved his talents to Boston and joined Chas. T. Main. At Main he was a mechanical engineer working in the industrial power group. While at Main he developed PC-based applications for performing heat balance and fluid flow modeling systems. ​ Terry then founded Waldron Engineering when it became evident there was a need for highly skilled engineering services with responsive customer focus for the new independent power industry. For the last 28 years he has lead Waldron to become an industry leader in the CHP and private power industry. When not offering solutions to clients, Terry spends time with his wife and five children. He enjoys running, rowing, biking and devouring historical novels. But, a true geek at heart, he has the most fun developing ideas for new energy technologies – some of which will soon come to fruition. JOHN SWEET, P.E President ​ John attended the University of Michigan and graduated with a Mechanical Engineering Degree. He then spent over 5 years in the U.S. Navy as a commissioned officer in the Nuclear Powered Surface Warfare community. In addition to other combat systems related assignments in the Navy, he was the electrical distribution officer on-board the USS Enterprise, a nuclear-powered aircraft carrier where he also was responsible for the supervision of the operation of a dual nuclear reactor plant complex. Shortly after leaving the Navy, he attended Boston College where he earned his MBA. ​ John helped to launch Waldron in 1992. During his career at Waldron he has worked in various roles, from mechanical engineer to lead mechanical engineer as well as project management and corporate management responsibilities. He has been involved in power projects around the world from Indonesia and India to Peru and Honduras, as well as many in the U.S. He has been responsible for the management of the engineering, procurement and construction of several of Waldron’s largest Combined Heat and Power projects. ​ He enjoys cycling, golfing, playing chess, and spending time with his wife and daughters at the beach near their home in Kennebunk, Maine. John Sweet David Forbes GRANT PAGE VP of Construction ​ Grant earned a bachelor’s degree from Massachusetts Maritime Academy where he majored in Marine Engineering and minored in Plant and Facilities Engineering. He also received an MBA from Franklin Pierce University. Grant spent several years working at the Portsmouth Naval Shipyard as a maintenance and planning engineer. Grant went on to work in the industrial construction and public utility sector, building 20+ years of experience as an engineer, estimator, project manager, and safety officer. His expertise includes the development and execution of projects using Construction Manager at Risk; Design-Build; and Engineering, Procurement, and Construction (EPC) project delivery methods. Grant lives in southern New Hampshire where he enjoys spending time with his wife and two children. In the summer he can be found in the New Hampshire Lakes Region boating with family and friends. In the fall he can rarely be found, as he wanders into the woods… sometimes in blaze orange and sometimes in camouflage. MICHAEL MARK, P.E. VP of Engineering ​ After a brief tenure in the mid-West, Michael landed in Alabama in time to join-up for the first grade, where as a transplant he struggled to put the sport of football in its appropriate context. This was rectified by his enrollment at Auburn University, where his formal education on the matter was completed. He participated in the Cooperative Education Program while at Auburn and worked for two years with Rheem Manufacturing in Montgomery, AL while completing his Mechanical Engineering Degree. ​ After graduation Michael moved to Maine, bought a suit, and responded to an outdated job posting that confused everyone involved, but led to a part-time position at Waldron in 2000. The part-time aspect of his employment lasted for about a day, since which time Michael has progressed steadily within the company to his current position. He has worked on projects of all shapes and sizes, from studies to commissioning, including construction projects with steam turbines, power boilers, reciprocating engines and combustion turbines. ​ Michael continues to live in Maine with his wife. He enjoys both reading and writing, with a smattering of his favorite novels being Cryptonomicon by Neal Stephenson, Mason & Dixon by Thomas Pynchon, and White Noise by Don DeLillo. As far as technical books go, The End of Certainty by Ilya Prigogine went down pretty well, as did The Rainbow and the Worm by Mae-Wan Ho. He grew up on a steady diet of Jim Kjelgaard stories. MICHAEL MARK, P.E. VP of Engineering ​ After a brief tenure in the mid-West, Michael landed in Alabama in time to join-up for the first grade, where as a transplant he struggled to put the sport of football in its appropriate context. This was rectified by his enrollment at Auburn University, where his formal education on the matter was completed. He participated in the Cooperative Education Program while at Auburn and worked for two years with Rheem Manufacturing in Montgomery, AL while completing his Mechanical Engineering Degree. ​ After graduation Michael moved to Maine, bought a suit, and responded to an outdated job posting that confused everyone involved, but led to a part-time position at Waldron in 2000. The part-time aspect of his employment lasted for about a day, since which time Michael has progressed steadily within the company to his current position. He has worked on projects of all shapes and sizes, from studies to commissioning, including construction projects with steam turbines, power boilers, reciprocating engines and combustion turbines. ​ Michael continues to live in Maine with his wife. He enjoys both reading and writing, with a smattering of his favorite novels being Cryptonomicon by Neal Stephenson, Mason & Dixon by Thomas Pynchon, and White Noise by Don DeLillo. As far as technical books go, The End of Certainty by Ilya Prigogine went down pretty well, as did The Rainbow and the Worm by Mae-Wan Ho. He grew up on a steady diet of Jim Kjelgaard stories. Michael Mark

ANALYTICS Energy projects today face the unprecedented challenge of balancing economic, functional, and environmental outcomes in the face of rapidly evolving regulatory and market conditions. Waldron’s industry-leading analytics provide the strategic insights necessary to make efficient investment decisions, track program performance over time, assess risk and track the key metrics most important to your organization. DATA-DRIVEN RESULTS ENERGY MODELING TOOLS The cornerstone of Waldron’s analytical services is a proprietary, internally-developed software platform capable of performing integrated electrical, thermal, economic, and greenhouse gas emissions calculations for complex microgrid systems. Some basic features of the platform are the following: Utilizes equipment performance curve library enables accurate prediction of part-load performance of major electrical and thermal generation equipment. Incorporates electrical generation, solar PV, heat recovery, energy storage systems, centrifugal and absorption chilling, heat recovery chilling, heat pump technologies and other principal utility generation assets. Manages a portfolio of individual building loads that vary in time due to construction, demolition, energy efficiency retrofits, and demand-side management programs. Modifies the condition or performance of microgrid assets over time, such as time-varying fuel cell plant performance, combustion turbine degradation between overhauls, etc. Dispatches electric and thermal generation assets to concurrently meet electrical, steam, hot water and chilled water loads. Integrates multiple commodity supply cost futures, utility tariffs, and procurement strategies. Incorporates scheduled and unscheduled (randomly selected) maintenance periods and equipment availability profiles. Performs internal auxiliary load calculations for central energy plant and microgrid parasitic loads. Capable of incorporating and simultaneously dispatching multiple facilities on a common microgrid. ​ STRATEGIC INSIGHTS Our array of in-house tools coupled with our experience in the design, construction and commissioning of energy generation and delivery systems enables us to offer true investment grade analysis. Our flexible tools allow rapid assessment of changes to market, regulatory or supply/demand conditions, so that existing assets are deployed optimally throughout their operating lifetimes. Determine optimal microgrid equipment configurations Efficiently identify key project drivers, sensitivities, and risks Track asset performance year-over-year compared to benchmark models Evaluate the true impact of Energy Conservation Measures (ECM’s) in a microgrid environment Identify the most cost-effective and environmentally sound dispatching strategies Determine the true cost of outages and equipment downtime Develop and/or analyze microgrid rate structures based upon calibrated system models Optimize returns on demand-side investments

Our People Waldron’s most important asset is its people. ​ Whether it’s working an outage, responding to an urgent request for s upport, managing critical project information, or gathering around a conference table to ensure each aspect of your project has been carefully considered, it’s our people who make the difference that we deliver. ​ We’re proud to employ some of the energy industry’s top profes sio nals—people who are committed to ensuring each project is a success, and who have the knowledge and skills to accomplish the task. Our team brings extensive experience across each of the engineering and design disciplines we cover, and everyone in the organization shares a focus on delivering solutions to our clients. We believe in ongoing mentoring We believe in continuing education and training for our staff to stay up-to-date. Whether you are new to a role or looking to update your skills, we believe in constant education and cross-functional learning. We nurture a culture of caring Waldron provides industry leading benefits for our employees including healthcare and tuition reimbursement. We provide a hybrid working environment that embraces both a work from home aspect coupled with an in office work component that fosters flexibility, mentoring, learning and a shared understanding of Waldron’s culture and values. We encourage personal professional development along a career path that leads to professional registration as an engineer or other relevant credentials. New Hampshire’s seacoast is our home and our playground Our main office is located in an area of the New England Seacoast that could be called a 'Hidden Gem'. Many of our employees get together after the workday to mountain bike in trails adjacent to our office. Downtown Exeter, NH has a vibrant culture and community. Nearby Portsmouth, NH is a progressive and eclectic mix of stunning architecture with fantastic dining, shopping, and commercial experiences. Escape to the beach, only a 15-minute ride from our office. Natural beauty and adventures like snow skiing, water-skiing, mountain hiking, and rock climbing are a short drive to Northern New Hampshire, Maine, or Vermont. We make time for fun Waldron has a supportive work environment that thrives on taking time to connect. We frequently enjoy morning doughnuts, lunches catered by local food trucks, sunset cruises, and ax throwing.

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 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.

< 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.