top of page

Bijan KHosraviani, Ph.D.

Principal and Founder

Bijan has been in the energy consulting industry since 2006. His main areas of interest are energy efficiency, conservation, and renewable energy. He has helped countless homeowners and businesses save money and reduce their environmental impact through energy-efficient solutions. He understands and believes that energy efficiency is one of the least expensive and most effective ways to help our environment.

​Bijan is a PHIUS+ (Passive House) Rater and Verifier, RESENT Certified HERS Rater, BPI Building Analyst, ICC Residential Energy Inspector/Plans Examiner, and holds a Ph.D. degree in Civil and Environmental Engineering from Stanford University.

About Us

A9 Green is a leading building consultant providing HERS ratings, AeroBarrier Sealing, and Passive House/LEED certifications. With over 14 years of experience, we have established ourselves as a trusted partner of developers, architects, and builders in the building industry. We provide a one-stop solution for achieving optimal energy performance. 


Summer 2023 Intern Team & Staff

Our team of experts have years of experience in the energy efficiency sector and are excited to work with our clients to help them reach their goals.

We take pride in encouraging the next generation of green-minded individuals. We actively teach interns about energy efficiency and the importance of green technology in the 21st century. At A9 Green, we believe that everyone should have the opportunity to learn and grow.

To inquire about job/learning opportunities, please Contact Us! 

We look forward to hearing from you. 

bottom of page