Grand Island Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 5A (cold-humid). Grand Island's exposed Platte River valley location produces hot summers (96°F/74°F cooling design), very cold winters (-5°F heating design), and high wind exposure that significantly affects infiltration loads.

Energy Code & Manual J Requirement: Nebraska Energy Code (IECC 2018). ACCA Manual J required for Hall County HVAC permits.

Local Electric Utility: Black Hills Energy / NPPD

Building Department: City of Grand Island Building Department

Local Trade Association: PHCC Nebraska