Scott von Kleeck


Scott von Kleeck is a seasoned technology executive, and draws on his depth of experience and expertise to enhance PSD’s technical solution leadership and accelerate our software development capabilities.

Prior to joining PSD, Mr. von Kleeck served Chief Information Officer and Chief of Staff for TCIM Services, a company providing outsourced services for Fortune 100 financial service and telecommunications customers.  At TCIM, he was responsible for overall management of the company’s worldwide IT infrastructure, software development, information security, program implementation, customer reporting, backend operations and quality assurance.

Mr. von Kleeck has also served as CIO of Enerwise Global Technologies, Inc., where he was responsible for the construction and operation of revenue generating products as well as the successful technical operation of the company’s corporate back office and customer service systems, networking infrastructure and Internet-based applications for energy related services.  He also created and managed systems efforts in some of the world’s best companies including The Vanguard Group, Hewlett Packard and Bell Laboratories.  Additionally, Mr. von Kleeck has experience in high growth spin-offs and start-ups where he managed technology initiatives for major Internet-based businesses, the Unix operating system, and several brokerage subsidiaries.

Greg Thomas

Chief Strategy and Technology Officer

Gregory Thomas has thirty-seven years of experience in building performance, as a consultant, trainer, heating contractor, home performance contractor, director of an energy service company, energy and green building conference planner, as well as an energy program designer, implementer, and energy software developer.

He is past president of Affordable Comfort Inc., the residential existing homes energy efficiency conference and served on the Affordable Comfort board for over 15 years. He is a past chair and current board member of  Efficiency First, the home performance contractor trade association and represent EF on the board of the Home Performance Coalition. He was the founder of the Building Performance Contractors Association of New York. He has been educational program director for a number of national and international conferences, including the USGBC Greenbuild Expo, the Financing Residential Energy Efficiency Conference, and the international Sustainable Steel Conference. He was the ACEEE 2009 Summer Study residential program design track co-chair, and has been elected to the RESNET Board of Directors.

Mr. Thomas has served as an advisor to a wide range of national and state entities including: the New York State Energy Research and Development Authority, the US DOE Weatherization Assistance Program, the Energy Foundation and the California Energy Commission. Mr. Thomas designed and managed the first Home Performance program in the country in 1995. He was recognized by US EPA, DOE and HUD for his contributions to the development of the national Home Performance with ENERGY STAR program in 2005. He was a winner of the 2005 R&D 100 Award for energy efficiency software design. As the executive director of a not-for-profit energy services company he was responsible for the development and implementation of the first utility low income multifamily energy performance contract, a $12M retrofit of over 7000 affordable housing apartments. He built a blower door and started offering whole house audits in 1979. Greg was the first blower door trainer for the low income weatherization programs in Pennsylvania and New York in the early 80s.

Mr. Thomas is a frequent contributor to various publications and a presenter at conferences including GreenBuild, ACEEE Summer Study, ACI, RESNET, the Department of Energy Better Building Summit, AESP and others. Mr. Thomas was a featured speaker at the National Building Museum, addressing the application of the total quality management process to the creation of predictable energy savings. Mr. Thomas attended Marietta College and the Cornell University College of Engineering.

Kathy Greely

Sr. VP, Program Services

Kathy Greely

Throughout her twenty year career, Kathleen Greely has worked in many sectors of the energy efficiency sector, from research at Lawrence Berkeley National Lab to college campus programs to community/non-profit approaches, through her current work designing and implementing efficiency programs for utilities.  Kathy has been an integral part of developing the residential efficiency industry in Pennsylvania. While program manager for PA Home Energy, Kathy led a team in the development of an award winning Home Performance with ENERGY STAR and ENERGY STAR New Homes program, and is now active in the design, management, and implementation of cutting-edge new construction and whole-house programs in multiple states.  In addition, she is a RESNET-certified rater and a BPI Building Analyst.

Kathy has an M.S. in Energy and Resources from the University of California at Berkeley and a B.A. in Physics and Mathematics from La Salle College.

John M. Davis

Director of Business Development

John M. Davis is the Director of Business Development for PSD, focusing on strategic growth across program services, software development and technical solutions.

John has served the energy efficiency industry in a handful of capacities over 10 years through experiences as a Building Performance Consultant, Energy Auditor, Program Manager, Sales Manager, Business Unit Manager and Manufacturers’ Representative. Experience participating, managing and creating utility energy efficiency programs allows him to understand the complex needs of utility, implementation and other partners.  John graduated from Clarkson University with his BS, Business Administration (Marketing concentration) and Technical Communication, and his MBA, Innovation and New Venture Track.


Ethan MacCormick

VP, Services to Energy Businesses

Ethan MacCormick has a unique background as both a builder and software developer. As PSD’s VP of Services to Energy Businesses, Ethan supports both contracting and consulting activities for Performance Systems. He is a certified HERS Rater, an approved HERS trainer and a BPI-certified Building Analyst, Test Proctor, and Super-Proctor. He co-authored the 2005/2007 rewrite of the Northeast HERS Alliance Energy Rating Manual. Before that, he built custom homes with a focus on energy efficiency. Ethan serves on a number of boards and committees for the ratings industry, both regionally and nationally. As a leading building science expert, Ethan is also one of our most effective trainers.


Rich Andrulis

Director of Product Development & Delivery

Rich Andrulis is responsible for defining requirements, product design, and rollout of our software tools.  He is a key participant on the salesandmarketing planning team for our software-as-a-service (SaaS) applications.

Rich leverages more than ten years of experience as a development architect at SAP to provide a structured methodology and standardized approach to providing input to both the development team and sales teams on product strategy and marketing. During his time at SAP, Rich was a key architect for custom-developed web applications in diverse industries, including Professional Services, Aerospace, Apparel & Footwear, Mill Products, and Consumer Goods. He was a project coordinator for a globally distributed team and incorporated new technologies to succeed at several technically difficult projects.

Rich also served as a trainer at SAP, teaching courses in Java, object-oriented analysis and design, profitability analysis, and cost controlling. He has also taught courses in electrical engineering, mathematics, and physics courses at Cornell University, the University of Oklahoma, and West Chester University. Rich received a PhD in Electrical Engineering from Cornell University and a BS in Engineering Science from Penn State.

Chris Balbach

VP, Research and Development

Chris Balbach is an expert in using energy modeling and analysis software to analyze the investment potential of existing buildings, with a focus on energy efficiency, building durability and occupant health and safety. Chris is proficient with over 20 different energy modeling tools, and works closely with our internal software development team to incorporate improvements to PSD’s modeling tools. His experience in developing integrated energy designs and depth of knowledge in energy analysis supports the technical underpinnings of PSD’s software tools, and he is a key participant in our software compliance testing.

Chris provides detailed training on improvement-driven modeling using TREAT & eQuest energy modeling tools. Chris’ unique approach to analyzing investment uncertainty within the energy simulation process provides Performance Systems Academy with techniques for training energy modelers that when combined with M&V (measurement and verification) efforts can lead to market transformation in energy efficiency. Chris has achieved Level 3 CMVP trainer credentials through Efficiency Valuation Organization (EVO).

Chris has received a Distinguished Service Award from the ASHRAE Members Council. This award recognizes ASHRAE members who have served the Society faithfully and with distinction on committees or have otherwise given freely of their time and talent on behalf of the Society. He is a corresponding participant for several ASHRAE committees: TC4.7 – Energy Calculations, GPC14 – Guidelines for Determining Energy and Water Savings, SPC155 – Determining Seasonal Boiler Efficiency, TC7.6 – Energy Systems Utilization. Chris is a Certified Energy Manager, Certified M&V Professional, licensed Professional Engineer, and a LEED Accredited Professional.

Before coming to Performance Systems, Chris designed large mechanical systems for institutional buildings, including public school buildings throughout New York and New Jersey. He was also an Applications Engineer for a major OEM motor manufacturer.