Status of commercial building energy code adoption (U.S. DOE 2018 a & b). For the prescriptive procedure, boiler efficiency rating is used directly in order to show compliance by meeting its minimum ...

COMPLIANCE: IES Vice President Nathan Kegel weighs in on why systems that check all code requirements don't always perform as well in practice. February 26, 2026 Nathan Kegel, vice president at IES, ...

Pictured: Example of computational fire modeling in a large industrial manufacturing facility. The model shows the fire location, and outputs information such as heat release rate and visibility, ...

image: Applying new approaches in energy codes may support improved building efficiency and decarbonization in the Big Apple and beyond. view more Pacific Northwest National Laboratory (PNNL) is ...