2026 Annual Sustainability Report
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Climate Change Mitigation
City Objective: Transition to 100% renewable energy and maintain an efficient, reliable, and affordable energy system that achieves net-negative carbon emissions no later than 2045.
◀️ City staff and community members gathered at a Climate Action Plan Community Workshop in Kalihi to share manaʻo and help shape Oʻahu’s climate future through the 2025-2030 Climate Action Plan update.
Credit: Office of Climate Change, Sustainability and Resiliency
A clean energy future for Oʻahu is not just about reducing emissions—it’s about creating a system that is more affordable, equitable, and resilient for every household.
In 2025, the City took a major step toward that vision by advancing a planning effort to update the City’s Climate Action Plan (CAP) for 2025–2030 on the pathway to a 100% clean economy by 2045. The City conducted comprehensive community outreach and engagement to ensure this next phase of climate action work centers on community-driven solutions that reduce carbon pollution while also lowering costs of living and improving quality of life for residents.
Through 10 island-wide community workshops, dozens of engagement events, surveys, and guidance from a community-based volunteer advisory committee, O‘ahu residents helped to shape a plan that reflects the diverse needs and priorities of our island communities.
At the same time, the City is already putting these principles into action. The inaugural allocations from the City’s new Climate Resiliency Fund—approved in 2025—are supporting projects that bring energy efficiency and resilience improvements directly into homes. This includes energy audits for City affordable and elderly housing facilities to identify cost-saving upgrades for residents, as well as a pilot program to support multi- and single-family homes in identifying energy-saving opportunities and accessing financial assistance to implement upgrades.
Together, these efforts demonstrate how the City is aligning planning with investment to deliver meaningful results by reducing emissions and making the benefits of clean energy and energy efficiency more accessible and affordable.
Key Performance Indicators
Greenhouse Gas Emissions Inventory
Total Emissions by Category, in Metric Tons of CO2 Equivalent (MTCO2e)
Climate Action Plan Implementation
Number of Climate Action Plan Actions by Implementation Status, as of December 31, 2025
Electricity Cost Burdens
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Renewable Energy Generation
Percent Share of Renewable Energy Generation on O‘ahu, by Energy Source
Renewable Energy Tax Credits
Number of Renewable Energy Technologies Income Tax Credits Claimed, by Income Class
Commercial & Multifamily Buildings Benchmarking
Percent Share of Covered Commercial & Multifamily Buildings by Better Buildings Benchmarking Program Compliance Status