Part 1 of 2 (Part 2 is 10/28/25 with separate registration)

Join Energy Trust for this virtual training, designed for contractors or community-based organizations that are interested in learning how various components of a home interact to affect the home's overall performance. At no cost to them, Energy Trust trade allies and community partners that complete this training are eligible to take the BPI Building Science Principles Exam (normally $109) and earn their Building Science Principles (BSP) Certificate of Knowledge.