I took the course with a bunch of other local NAHI members. Learned a lot, but never incorporated the service into my inspections.
They (CMC) suggested adding the energy evaluation to the home inspection, but my inspections take long enough as it is, and many of the deals go south, so why would a client want to add expense when they may not even be going through with the purchase, is my thinking.
But... I learned a lot and I'm glad I took the course.

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Illegal aliens have always been a problem in the United States. Ask any Indian. -Robert Orben, magician and author (b. 1927) / www.ArnoldHomeInspections.com