Kailua-Kona Climate Zone & Energy Code
Climate Zone: IECC Climate Zone 1A (hot-humid tropical, leeward variant). Kona's leeward position produces lower humidity than windward Hawaii — sensible cooling loads are higher relative to latent loads compared to Hilo, and the resort-quality weather means year-round cooling demand with negligible heating.
Energy Code & Manual J Requirement: Hawaii Energy Code (IECC 2018 with Hawaii amendments). ACCA Manual J required. Hawaii County Department of Public Works administers Big Island permits including the Kona district.
Local Electric Utility: Hawaii Electric Light Company (HELCO / Hawaiian Electric)
Building Department: Hawaii County Department of Public Works Building Division
Local Trade Association: ASHRAE Hawaii Chapter