My most recent contribution to ELECTRICAL CONTRACTOR breaks down the major lighting changes in the 2021 version of the International Energy Conservation Code (IECC).

Regarding lighting, the 2021 version of the IECC reduces lighting power allowances, expands mandatory controls requirements and issues clarifications. The most significant changes from the 2018 IECC are tighter interior lighting power allowances and the addition of daylight-responsive control for secondary daylight zones, plug load controls and parking garage control requirements. Let’s take a look at some of the other big changes.

Click here to check it out.