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CONSULTING 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 TUFTS UNIVERSITY COMMISSIONING LOCATION: Medford, MA SIZE & TECHNOLOGY: 4 MW Gas-fired recip. engine. 800-ton electric chiller 600-tons of hot water absorption chiller and pumps IN SERVICE: Winter 2018 FIRM ROLE: Owner’s Engineer Services, Cx Waldron Engineering was contracted to perform the commissioning services for the new Tufts Central Energy Plant. The plant consisted of a 4 MW gas-fired reciprocating engine, with 200 horsepower waste heat recovery boiler and 3x800 horsepower firetube boilers. The facility also included an 800-ton electric chiller and 600-ton hot water absorption chiller. Waldron, as the commissioning agent and systems trainer, coordinated new boiler/chiller plant startup while the existing plant was in operation, provided supplemental design and engineering during construction and commissioning, worked with vendors to correct equipment design oversight, and developed commissioning test procedures. The challenge of getting the new systems operational against the backdrop of a working plant required careful coordination, precise planning, and smooth execution of our commissioning plan. Tufts was able to get its system online and derive an economic benefit from its new cogeneration systems.

< Back to all projects ONE BRYANT PARK MICROGRID LOCATION: New York, NY DESIGN START/COMPLETION: Spring 2006 – Spring 2007 SIZE & TECHNOLOGY: 4.5 MW Electric 50,000 lb/hr steam Gas Turbine / HRSG IN-SERVICE: Spring 2009 FIRM ROLE: Engineering, Construction Management, Technical Support The Durst Organization builds, owns, and operates some of the world’s most innovative and efficient buildings. In developing the One Bryant Park building (a.k.a The Bank of America Tower), The Durst Organization made a commitment to achieving the lowest environmental footprint. The building, which is located one block off Times Square on Sixth Avenue, is a 50-story structure that is predominately leased by Bank of America. The building is designed to conserve energy wherever possible. The energy that is consumed is supplied by a gas turbine-based CHP facility located on the 7th floor podium. Waldron designed the complete plant around the Solar Mercury 50 gas turbine that exhausts into a fired HRSG. The HRSG is sized to serve the complete needs of the building. The building set a new standard in sustainable commercial construction by utilizing the least amount of energy possible, and the energy consumed is generated in the most efficient manner possible. It is the first LEED Platinum high-rise office tower in North America and ranks among the most environmentally advanced skyscrapers in the world.

< 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.

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.

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. Waldron is currently looking to fill the following positions. Entry and Mid-Career Electrical Engineers Entry and Mid-Career Mechanical Engineers Entry and Mid-Career Controls Engineers

< 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 LONGWOOD MEDICAL ENERGY COMPREHENSIVE STUDY LOCATION: Boston, MA STUDY DATE: November 2014 – December 2015 SIZE & TECHNOLOGY: Gas Turbines, Reciprocating Engines, Chillers, Boilers FIRM ROLE: Feasibility Study The Longwood Medical Area (LMA) is a world-class medical and academic center located between Brookline and Mission Hill. With the central energy plant serving the hospital district getting close to 40 years in age, Longwood Medical Energy commissioned Waldron Engineering & Construction, Inc. to develop a study for the replacement of the existing facility and distribution net-work. Longwood Medical Energy consists of Brigham & Women’s, Harvard Medical School, Children’s Hospital, Beth Israel Deaconess Medical Center, Dana Farber Cancer Institute, Jimmy Fund and other healthcare and research facilities. The comprehensive study covered load analysis with growth projections, central plant, distributed generation and satellite plant options and radial, loop and other distribution options. The technical options include gas turbines, reciprocating engines, chillers, boilers and complete balance of plant. Work included life cycle performance projections, O&M cost budgets and construction cost estimates.

< 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 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 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 HANSCOM AIR FORCE BASE MICROGRID LOCATION: Middlesex County, MA DESIGN START: Winter 2017 IN-SERVICE: Spring 2020 SIZE & TECHNOLOGY: Solar Turbine 5.0MW FIRM ROLE: Engineering, Design Construction Support, Commissioning CONSTRUCTION COST: $20.5 Noresco is building a new Combined Heat & Power (CHP) Facility at Hanscom Air Force Base in Middlesex County, Massachusetts. The CHP will serve the site’s steam requirements and off-set electrical purchases from the incumbent electrical utility. The design scope includes preparation of a design package in sufficient detail for permitting, pricing, and construction by general, electrical, mechanical, civil & site utility subcontractors experienced with the installation of similar facilities. Waldron prepared the permit applications for the DEP Air Permit, Eversource Electric Interconnection, and the Pipeline Natural Gas Load Letter. The permit process was completed in 9 months. 5 MW Gas Turbine Generator Heat Recovery Steam Generators (HRSGs) with fuel assisted firing (duct burner) generating up to 40,000 lb/hr of steam at 100 psig Control System for the CHP plant that integrates the balance of plant equipment. Electric Load Management System The new CHP plant ties into the existing steam, condensate, water, sewer, and electrical systems.