Policy & Legislation

Guam Public Law 35-46 (Bill 80-35)

Prepared by the 35th Guam Legislature, this is Guam’s cornerstone clean energy law. It mandates that the Guam Power Authority (GPA) source 50% of its electricity from renewable sources by 2035, and transition to 100% renewable energy by 2045.

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Guam Tropical Energy Code (Bill No. 413-35 (COR))

Prepared by the 35th Guam Legislature, this legislative document records the passage of Bill No. 413-35 (COR), which adopted the 2017 Guam Tropical Energy Code (GTEC) and updated Guam’s building energy code requirements. It documents the legislative intent behind establishing minimum energy efficiency standards to promote more sustainable, resilient, and energy-efficiency buildings across Guam.

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The Guam Energy Sustainability Act (Draft Proposal)

Prepared by the Guam Energy Task Force, tis draft proposal outlines a legislative framework for advancing Guam’s long-term energy sustainability through coordinated planning, renewable energy, energy efficiency, and energy security. Although it was not adopted into law, it provides valuable insight into the ideas that helped shape Guam’s energy planning and future energy initiatives.

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Guam Public Law 30-141 (Bill 320-20 (COR))

Prepared by the 30th Guam Legislature, this law is essential to rooftop solar on island. This policy expanded net metering by increasing system size limits, making it easier for homeowners and businesses to install renewable energy systems and connect them to GPA’s grid. This Act amended net metering and raised the system capacity limits to 25 kilowatts (kW) for residential systems and 100 kW for non-residential systems.

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Guam Public Law 29-62 (2008) – Renewable Portfolio Standard (Original RPS)

Prepared by the 29th Guam Legislature, this is the law that started Guam’s Renewable Portfolio before it was strengthened by Bill 80-35 / Public Law 35-46. An Act to promote the development of renewable energy to offset costs of energy for electricity production related to dependency on oil imports. It requires the Guam Power Authority to establish renewable portfolio standard goals and provides the Public Utility Commission to study the feasibility of implementing a rate structure to encourage the use of renewable energy.​

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Alternate Energy Plan for Guam Act​

Prepared by the Guam Power Authority, this is one of Guam’s earliest energy planning laws and established the framework for developing an alternate energy plan and the Guam Energy Office’s role in energy planning. It’s more historical than practical today, but it’s a great piece of legislative history.

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©2026 University of Guam 

Sea Grant. All rights reserved.

National Oceanic & Atmospheric Administration logo
303 University Drive UOG Station
Mangilao, Guam 96913 
Phone: (671)-735-5631 
 Email: cis@uog.edu  
seagrant@uog.edu   
Contact Us  
©2026 University of Guam 
Sea Grant.
All rights reserved.
National Oceanic & Atmospheric Administration logo
303 University Drive
UOG Station
Mangilao, Guam 96913 
Phone: (671)735-5631 
 Email: cis@uog.edu  
seagrant@uog.edu   
Contact Us  
©2026 University of Guam 
Sea Grant. All rights reserved.
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