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Screenshot of the Washington State Residential Energy Code Calculator homepage. A large heading at the top reads “Washington State Residential Energy Code Calculator.” On the left, a “Get Started” panel includes Login and Create an Account buttons. Below, a “Need Assistance?” section provides contact email addresses for energy code compliance and tool support (ep.energycode@wsu.edu) and account assistance (ep.support@wsu.edu). On the right, a welcome panel titled “Welcome to the WSU Energy Code Compliance Tool”. Text below reads "this application helps homeowners, builders, and building officials determine whether residential compliance construction projects meet the requirements of the Washington State Energy Code - Residential (WSEC-R 2021). The tool provides an efficient way to evaluate building envelope components, mechanical systems, and overall energy performance to ensure compliance with current state regulations. Key Features: Calculate compliance for new residential construction. Evaluate building envelope requirements. Assess mechanical system specificiations. Generate compliance documentation. Save and manage multiple projects."

WSU Energy Program launches Residential Energy Code Calculator

September 17, 2026

The WSU Energy Program has released a new tool that streamlines energy code documentation for res...

Phelps, holding a large pink-colored trout in a long room lined with pond-like tanks, conduits, and lights. A fish net rests on a nearby tank.

New WSU-led research aims to transform U.S. fish farming

September 17, 2026

A new, WSU-led approach to fish breeding could help aquaculture grow safely and profitably, with...

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