Meet our team of exceptionally talented, committed, and accomplished professionals.

Susan Ansara

Susan Ansara

Electrical Designer

Sarah Carter

Sarah Carter, PE, CPHC, LEED AP

Lead Mechanical Engineer

Bill Drohan, PE

Bill Drohan, PE

Senior Electrical Engineer

Kate Haddock, EIT

Kate Haddock, EIT

Mechanical Design Engineer, Senior Project Coordinator

Erin Haye

Erin Haye

Executive Assistant

Doug Kumph, PE, CPHC

Doug Kumph, PE, CPHC

Director of Housing Practice

James Petersen, PE

James Petersen, PE

Principal, Director of Engineering

Mark Prendable

Mark Prendable

Lead Electrical Designer

Dave Raymond

Dave Raymond

Plumbing and Fire Protection Design Engineer

Andrew Sparrow, PE

Andrew Sparrow, PE

Senior Mechanical Engineer

Christine Thomas, PE

Christine Thomas, PE

Project Manager, Lead Mechanical Engineer

Susan Ansara

Electrical Designer

As Electrical Designer at SMRT, Susan brings experience as a drafter at an MEP firm before transitioning into electrical design, joining Petersen Engineering, now an SMRT company, to continue building her expertise in sustainable design practices. 

Susan holds a Bachelor of Science in Interior Design.

When Susan is not at work you will find her
  • Traveling
  • Watching shows
  • Relaxing

Sarah Carter, PE, CPHC, LEED AP

Lead Mechanical Engineer

As Lead Mechanical Engineer at SMRT, Sarah brings over 20 years of experience in mechanical engineering, providing technical oversight and direction for high-performance, sustainable mechanical systems across a diverse range of project types. She leads teams through all phases of project delivery, with a focus on quality, constructability, and integrated design. 

Sarah's project experience spans multi-family housing, water and wastewater treatment facilities, commercial buildings, historic mill conversions, and complex occupied rehabilitation projects, including new construction multi-family projects certified under PHIUS Passive House standards. 

Sarah holds a BS in mechanical engineering from the University of Vermont. She is a licensed Professional Engineer in New Hampshire, Massachusetts, Virginia, Rhode Island, Connecticut, New York, Pennsylvania, and Maine, a LEED Accredited Professional, and a Certified Passive House Consultant. 

When Sarah is not at work you will find her
  • Hiking and camping adventures with my family
  • Trying to keep up with my two boys skiing at Gunstock
  • Indulging in the Bachelor/Bachelorette or some other horrible reality TV
Certified Passive House Consultant

Bill Drohan, PE

Senior Electrical Engineer

As Senior Electrical Project Engineer at SMRT, Bill designs and reviews electrical systems for a variety of projects with a focus on multifamily residential, collaborating closely with architects and project teams to resolve design and construction challenges. He began his career as an electrician before transitioning into engineering, then spent twelve years with MEP firms in New England, developing expertise in large-scale building electrical system design and project management on multifamily residential projects along the east coast. 

Bill holds a BS in electrical engineering from the University of Massachusetts Dartmouth. 

When Bill is not at work you will find him
  • Working on home improvements
  • Playing darts in my local league
  • Relaxing with a good book

Kate Haddock, EIT

Mechanical Design Engineer, Senior Project Coordinator

As Mechanical Design Engineer, Project Coordinator at SMRT, Kate brings experience supporting clean energy generation early in her career, developing technical and project management skills. She takes a collaborative approach to meeting efficiency, sustainability, and client goals across project teams. 

Kate is a first-generation college graduate with a BS in mechanical engineering from Florida Atlantic University and is working toward Professional Engineer licensure in New Hampshire. 

When Kate is not at work you will find her
  • Exploring the seacoast with her husband and son
  • Hiking the 4,000-footers of New Hampshire
  • Enriching her yoga and meditation practices

Erin Haye

Executive Assistant

As Executive Assistant at SMRT, Erin brings nearly 25 years of organizational experience across K-12 and higher education institutions, as well as volunteer organizations. 

Erin earned a BS in Child and Family Studies from the University of New Hampshire. 

When Erin is not at work you will find her
  • Crafting
  • Traveling
  • Volunteering

Doug Kumph, PE, CPHC

Director of Housing Practice

Doug serves as Director of Housing Practice, bringing extensive experience in operations, business and project management, team leadership, and the design, and commissioning of mechanical, electrical, plumbing, and fire protection systems. He began his career in the MEP/FP industry at Petersen Engineering, now an SMRT company, and went on to hold senior leadership roles in engineering and commissioning organizations before returning to Petersen to help lead the firm’s growth and development. 

Doug earned a BS in Chemical Engineering from the University of New Hampshire and an MS in Organizational Leadership from Southern New Hampshire University, where he received the Outstanding Student Award. He is a licensed Professional Engineer in Massachusetts and New Hampshire, a LEED Accredited Professional, and a Certified Passive House Consultant. 

When Doug is not at work you will find him
  • Being Outdoors
  • Biking, walking, skiing
  • Visiting his two boys
Certified Passive House Consultant

James Petersen, PE

Principal, Director of Engineering

As Director of Engineering, James brings four decades of experience in engineering integrated building mechanical systems. He founded Petersen Engineering, inc., now an SMRT company, and continues to connect MEP/FP systems with building science, building enclosures, and integrative design processes, aligning technical performance with the priorities of building users, clients, and owners. James has served as Principal-in-Charge on 70 large-scale Passive House projects. 

James currently serves as President of Passive House Massachusetts and sits on the HCA Portsmouth Hospital Board of Directors, advocating for high-quality community health care.  

When James is not at work you will find him
  • Cutting down trees in his backyard
  • Showing off his comedic side by telling jokes
  • Being an active member of the Portsmouth community
NESEA Lifetime Member

Mark Prendable

Lead Electrical Designer

As Lead Electrical Designer at SMRT, Mark works directly with clients and oversees electrical engineering work to ensure project goals are met, coordinating with design teams and contractors to resolve construction challenges. He brings over 20 years of experience in electrical engineering across a broad range of markets, including multifamily residential, hospitality, college and university, commercial, retail, and healthcare. 

When Mark is not at work you will find him
  • Doing activities with his children
  • Fishing
  • Reading

Dave Raymond

Plumbing and Fire Protection Design Engineer

As Plumbing and Fire Protection Design Engineer at SMRT, David brings experience in plumbing engineering spanning higher education, healthcare and multifamily housing markets, beginning his career in Philadelphia. He takes a holistic approach to building design, with a focus on water conservation and smart energy use. He enjoys working with all trade partners and looks for a solution that is a win-win for all parties involved. 

David holds a degree in mechanical engineering from Drexel University. 

When Dave is not at work you will find him
  • Playing beach volleyball
  • Expanding my music knowledge
  • Struggling through the NYT crosswords

Andrew Sparrow, PE

Senior Mechanical Engineer

As Senior Mechanical Engineer, Andrew brings twelve years of mechanical engineering and design experience, with an emphasis on multi-family residential alongside commercial, industrial, laboratory, and healthcare projects across the east coast. He joined the team through Petersen Engineering, now an SMRT company, and focuses on energy-efficient, high-performance building design. 

Andrew holds a BS in mechanical engineering from the University of Massachusetts Dartmouth. He is a licensed Professional Engineer in Massachusetts and a Certified Passive House Consultant. 

When Andrew is not at work you will find him
  • Renovating his old house
  • Walking his dog
  • Experimenting in the kitchen

Christine Thomas, PE

Project Manager, Lead Mechanical Engineer

As Project Management Leader of the Housing Practice at SMRT, Christine brings more than a decade of experience spanning mechanical systems design, regulatory compliance, and project management in the power generation field before joining Petersen Engineering, now an SMRT company. Her background across engineering and project management allows her to bridge technical discussions across disciplines and levels of expertise. 

Christine holds a BS in chemical engineering from Worcester Polytechnic Institute and is a licensed Professional Engineer in New Hampshire. 

When Christine is not at work you will find her
  • Visiting every playground within a 60 mile radius with her husband and their 3-year old daughter
  • Hiking in the mountains of New Hampshire
  • Hitting the trails on her mountain bike