What we do

At Performance Systems Development, we are passionately committed to building performance by improving the energy efficiency of buildings.  Our software, services, and training provide our clients with the tools, support, and knowledge needed to achieve peak building performance.  These efforts yield energy efficient, safe, healthy, and comfortable spaces in which to work and live.

Our clients span 47 states, and include energy efficiency programs, energy service providers and commercial building owners.  Energy efficiency programs in over 20 states rely on our program software to manage information, track jobs, and report results.  Our hallmark energy modeling software (TREAT) is used by thousands of energy auditors and engineers nationwide. TREAT serves the needs to many weatherization agencies and is still the only DOE-approved software for weatherization programs serving all building types from mobile homes to multi-family dwellings.  And a growing number of commercial building owners and managers rely on our benchmarking and energy tracking software and services to track commercial building performance and prioritize efficiency upgrades.

Why we do it

We are motivated by the fact that the most affordable energy source is often the energy we can save with building improvements that target energy efficiency.  Our enthusiasm is fueled by the many benefits that energy efficiency programs and retrofits yield:

• Significant energy and money savings for homeowners and commercial building owners
• Green jobs created for sustainable economic prosperity
• Environmental sustainability with better living and working environments
• Climate change mitigation through lower carbon emissions
• Reduced dependence on foreign oil and fossil fuels

How we’re different

Performance Systems Development possesses a powerful mix of core competencies, products and services to meet your energy efficiency and building performance needs. We’re committed to transforming the nation’s energy markets and greening our economy to achieve environmental sustainability and economic prosperity.

• Comprehensive solutions: Our portfolio of energy efficiency products, services, and training create a unique synergy to meet the challenges faced by residential and commercial energy efficiency programs and commercial building owners nationwide.  This breadth and depth is invaluable in offering creative and effective energy efficiency solutions tailored to your needs.

• Staff experience and expertise: Our staff includes seasoned veterans with diverse talents.  We have experienced training staff; in-field energy efficiency program management personnel; software developers versed in application customization; energy engineers, and building scientists, raters, auditors, and contractors with a wealth of knowledge and practical experience.  We draw on the depth and diversity of this knowledgebase every day to meet the needs of our clients.

• Thought Leadership and market transformation: We are engaged in driving the effort to develop and refine the tools and protocols for market transformation through creative program implementation and the strategic application of technology.  We do this through consistent involvement with government, industry, and technology partners.

Background and Leadership

To know Performance Systems Development, you should know more about our Founder and CEO, Gregory Thomas.  A visionary in the energy efficiency field for over 30 years, Greg's commitment to energy efficiency and building performance is as tireless as his energy is contagious across the company.  As the current chair of Efficiency First, and a board member of RESNET, he is deeply involved at the very top levels of government regulation, industry standards, technology partners, and program management.  He founded the New York Building Performance Contractors Association and is a past president of ACI (Affordable Comfort Inc.).  BPI (Building Performance Institute) has acknowledged Greg’s contributions with a lifetime achievement award. Greg has also served advisory roles for NYSERDA (New York State Energy Research and Development Authority) as well as the U.S. Department of Energy, and is a past program director for the USGBC (US Green Building Council). 

Greg's passion, commitment, drive, and creativity are shared across the company and part of our induction process.  We strive to drive market transformation through sensible and effective energy efficiency standards, inventive applications of technology, peer building performance comparisons, and quality training accreditation.  The intended results of our efforts are to ensure that our built environment is operating at peak performance, providing energy efficient, safe, comfortable, and healthy living and working environments.  We'd love to have you join us in the effort.

Management Team

A Legacy of Leadership

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More Information

Our Philosophy
The Future of Energy
What is Home Performance?
Applying Energy Efficiency