Welcome to Wollin Group, Inc.


MI-BEST A+ Advanced Energy Training

Class Room Training

Live Webinar Training

Low GWP Refrigerants – Concerns, Transition and Safety (Webinar)  (10/24/23 / 6pm-8:30pm)

Non-Invasive Refrigerant charge Verification of Existing HVAC Systems (10/25/23 / 6pm-8:30pm)

HVAC Installed System Efficiency & Capacity, Using ASHRAE 221-2020 (11/29/23 / 1pm-4pm)

  • Advance training on a variety of energy conservation topics for Southern California Gas Company, San Diego Gas & Electric, Pacific Gas & Electric, Sacramento Municipal Utility District (SMUD), as well as various private companies.
  • Curriculum Development Services: These are turn-key, comprehensive presentations on a variety of building science and energy topics. With on-location class set up and hands-on training modules the approach is beneficial and lasting for both the sponsors and attendees.
  • Energy Documentation: Wollin Group Inc provides the calculations and documentation required by building departments for compliance with the California Residential and Non-Residential Energy Standards.

Our Mission


Wollin Group, Inc we strive to provide with the MI-BEST A+ Training the building and HVAC industry with assistance in energy efficient design and installation, sustainable construction options, and building procedures that promote durability and occupant comfort. As buildings continue to become more performance oriented, the details and materials used in the construction process become increasingly important both in choice and integration.

MI-BEST A+ Training Video Testimonials