Mat Himmelein

State Technical Program Monitor

Mat joined Optimal Energy in 2018 as the State Technical Program Monitor for the Delaware Weatherization Assistance Program (WAP). Mat is a Building Performance Institute certified Quality Control Inspector under WAP protocols and also holds the Residential Building Analyst, Building Envelope Specialist, and Healthy Homes Evaluator certifications. Before joining Optimal Energy, Mat was with the Energy Coordinating Agency, providing home energy audits, residential energy efficiency training, and quality control inspections in the Philadelphia area. Mat has extensive experience in the residential energy efficiency industry.

B.S., Environmental Studies and Policy, Temple University