National Sustainable Structures Center

Creating economical & environmentally sustainable structures through building science and energy conservation training in the commercial and residential fields.


  • National Sustainable Structures Center
  • General Services: 2245 Reach Road

NSSC at Penn College is a nationally-recognized U.S. DOE legacy training center and BPI Test Center that provides training and technical assistance to home energy professionals, commercial building operators, government, utility companies, and other industry partners in the building performance field.

Explore our program areas

Full Training Schedule

Building Operator Certification (BOC)

Nationally recognized, competency-based training and certification programs for facilities personnel.

Commercial Building Re-tuning

Learn how to re-tune your facility and lower your energy bills.

Building Performance Institute (BPI) Certifications

NSSC offers BPI training and certification exams for the home performance industry.

Home Energy Professional Certifications

Launch your career with comprehensive, accredited training for all of the Home Energy Professional certifications.

PA Weatherization

NSSC is PA’s central resource for weatherization training and technical assistance.


Program Areas

  • Building Operator Certification (BOC)
  • Entry-Level Building Operator Certification
  • Commercial Building Re-tuning (BRT)
  • Home Energy Professional (HEP) Certifications
  • Building Performance Institute (BPI) Certifications
  • EPA RRP Certified Lead Renovator & Refresher Certification
  • Multifamily


  • Energy conservation training for any type of existing building
  • Technical assistance for home performance industry
  • Energy modeling for residential retrofits
  • Agricultural energy assessments
  • Customized courses in a variety of energy efficiency topics
  • In-field or in-classroom training
  • Distance learning and online courses
  • BPI Test Center and BPI Proctor Mentoring

NSSC facilities include...

  • A 16,000 square-foot, state-of-the-art instructional space
  • Four dedicated, multimedia-equipped classrooms with SmartBoards, plus a class-instruction area with wireless capability in each of the two hands-on training labs
  • A Tactics Lab featuring a six-unit demonstration structure, six workstations, fully equipped blower units for installing cellulose insulation, and storage space
  • A Diagnostics and Energy Conservation Lab that allows for multiple training events and testing featuring two demonstration and test houses with blower-door testing equipment and a six-unit structure for single- and multi-family scenarios
  • A heating appliance training area (10 functioning heating units)
  • A base load and heat pump display/demonstration area
  • A “house of pressure” balloon-framed module where pressure diagnostic procedures are demonstrated
  • A mobile unit for the purpose of in-field training at remote locations
  • Office space for instructors, visiting instructors, and support staff

Learn more

Student Experience

“I'd like to thank you for the outstanding course you delivered to our group. Your attention to every detail, from snacks to surveys, was truly top notch. I also appreciated the excellent e-mail communication and your accessibility. You guys made this one of the best courses I've ever completed. I'm recently retired from 30 years in the military and I'm fairly new to the K-12 facilities management field, so I found your curriculum particularly helpful.”

Thomas Hess

Quaker Valley School District

Our People

Here for you every step of the way

When you study at Penn College, your instructors will do more than know your name. They’ll get to know you. Experienced, passionate, and dedicated to your success. Penn College instructors are here to support your career journey.

Meet Instructors and Staff


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