Start Your Journey in Energy Efficiency & Building Science
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Are you considering a career in energy efficiency, green building, or sustainability? Do you work in home inspections, construction, or real estate? Do you want to learn more about the home you live in? The Building Science Principles (BSP) Certificate of Knowledge is your first step to understanding how homes work as a system - improving comfort, efficiency, and performance.
What You'll Learn
- How insulation, heating, cooling, ventilation, and appliances interact
- The impact of energy efficiency on comfort, health, and safety
- The role of building science in home performance and sustainability
- The basics of renewable energy
How to Earn Your BSP Certificate
- Study the Reference Guide (Available in print or digital format) or find a BPI Test Center near you
- Take the Online Exam (100 multiple-choice questions, 70% passing score)
- Print Your Certificate
Completely Online! No proctor required. Take the exam anytime from your internet-connected computer.
Get Started Today!
- Digital Reference Guide (Desktop-friendly) – $119 if paid by ACH/Check/Debit or $122.57 if paid by Credit
- Printed Reference Guide – $139 + shipping if paid by ACH/Check/Debit or $143.17 + shipping if paid by Credit
- BSP Online Exam – $119 if paid by ACH/Check/Debit or $122.57 if paid by Credit
Take the exam anytime within one year of purchase.
Purchase the BSP Guide & Exam
Why Earn Your BSP?
The Building Science Principles (BSP) Certificate is your gateway to understanding how homes really work. Whether you’re a contractor, program manager, salesperson, or simply curious about energy efficiency, the BSP gives you the foundational knowledge you need to talk confidently about comfort, energy use, health, and durability in buildings. No hands-on testing or field exams — just practical, real-world insights you can apply right away. Boost your credibility, expand your knowledge, and take the first step toward a smarter, more efficient future.
BPI Certified Professionals:
Earn 6 CEU credits by passing the BSP exam!
Who Should Earn the BSP Certificate?
Building Trade Professionals
Raise your credibility and communicate better with clients. Ideal for:
- Contractors, remodelers, and HVAC Professionals
- Energy product manufacturers & distributors
- Solar & renewable energy sales teams
- Home performance company employees
Homeowners, Students & Emerging Professionals
Kickstart your career in energy efficiency and sustainability. Perfect for:
- Community college & vocational trade students
- High school students interested in green building careers
- Homeowners and anyone considering DIY projects
Home Inspectors, Appraisers, & Realtors
Gain a whole-home perspective to better serve your clients. Great for:
- Home inspectors & real estate professionals
- Mortgage & energy efficiency financing officers
Policy & Program Managers
Make informed decisions and improve program outcomes. Beneficial for:
- Energy office staff & government regulators
- Utility program managers & contract administrators

Ready to Get Started?
Preview the BSP Reference Guide Find a BPI Test Center near you Register for the Examthe BSP Certificate?
a whole system. I don’t work in the field every day, but having this foundation gives
me the confidence to talk with contractors and customers about comfort and energy
in a way that makes sense.


