Hawaii Energy Building Code

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On March 24, 2020, the Hawaii State Energy Office and Hawaii Energy hosted a webinar, Energy Modeling for 2015 IECC Compliance and Net Zero Design.

This webinar and panel discussion provided guidance for designers and project managers and addresses the following questions:

  • What are appropriate applications for energy modeling?
  • When should I use energy modeling for energy code compliance?
  • Should architects do energy modeling?
  • How do I work effectively with an energy modeler?
  • How do I plan for effective use of energy modeling in design?
Presenters: Panelists:
Erik Kolderup, PE , Kolderup Consulting Mark Ayers, AIA, LEED AP, Ferraro Choi
Howard Wiig, Hawaii State Energy Office Charles Chaloeicheep , PE, LEED AP, WSP
Kim Claucherty , AIA, BSME, LEED AP, Ferraro Choi
Samantha Nakamura, PE, LEED AP, WSP
Lester Ng, LEED AP, AHL

Training webinar via Vimeo

Part 1

Part 2

Training Material

Residential Checklist: Hawaii County Supplement (PDF)

Commercial Checklist: Hawaii County Supplement (PDF)


(August 2019) Training of Hawaii’s 2015 IECC County Amendments and Envelope Design

The Hawaii State Energy Office, Hawaii Energy, and allied professional organizations sponsored free training sessions which covered the new code’s building envelope requirements. The training explained how to comply with the code and also covered the building science behind the building envelope’s impact on cooling loads, energy consumption, and occupant comfort.

Presented by:
– Erik Kolderup, PE, has been an energy code specialist for over 20 years, and was instrumental in creating Hawaii’s energy codes in the 1990s and in 2001.
– Howard Wiig, MA, with the State Energy Office, has been an energy code specialist for over 20 years, and has been in all phases of energy code development.

Training Material

2015 International Energy Conservation Code and Envelope Training Presentation (PDF)

2015 International Energy Conservation Code and Envelope Training Presentation (4 slides/page) (PDF)

Commercial Checklist: IECC 2015 with State Amendments (PDF)

Residential Checklist: IECC 2015 with State Amendments (PDF)

Residential Checklist: Kauai Supplement (PDF)

Commercial Checklist: Kauai Supplement (PDF)

Residential Checklist: Maui Supplement (PDF)

Commercial Checklist: Maui Supplement (PDF)


The Hawaii State Energy Office chairs and is a voting member of the State Building Code Council, which was established by statute to update, adopt, and amend building codes.  The following links will provide you with valuable information and resources on the state building energy code.

2015 IECC Update

Pre-2015 IECC Update

Support Information

Building Code Resources


(April 2018) International Energy Conservation Code Training
A series of free statewide training sessions were offered to government employees, architects, engineers, contractors, and others in the design and construction community. The training sessions covered energy efficient design concepts and code requirements for both residential and commercial buildings. Updated checklists were provided and new requirements were highlighted.

International Energy Conservation Code training presentation (PDF)

The session scheduled for Kauai was postponed due the storm flooding on the island. The Kauai session was conducted as a webinar.

View the Kauai video presentation

International Energy Conservation Code Kauai training presentation (PDF)

Designer Compliance Certification Blocks
The certification blocks are shorter documents for the designer of record to fill out and the county plan checker to quickly assess the degree of code compliance.

Commercial Certification Blocks Checklist

Residential Certification Blocks Checklist


Hawaii State Energy Office contact for energy code issues: Howard Wiig, [email protected]