Hawaii utilities brace for storm season, harden grid against outages
A direct hurricane hit could still leave Hawaii Island dark for weeks or months, even as utilities spend $190 million to harden the grid.
Hawaii Island could still face weeks or months without power if a hurricane hits directly, even as Hawaiian Electric and state officials pour millions into stronger poles, lines and other defenses. Emergency managers are warning residents to prepare for extended outages as NOAA’s 2026 Central Pacific hurricane outlook, which runs from June 1 through Nov. 30, puts the basin at a 70% chance of an above-normal season with five to 13 tropical cyclones possible.
Hawaiian Electric spends more than $100 million a year on grid resiliency, including pole replacement and other infrastructure work. The Hawaii Public Utilities Commission has approved the company’s $190 million Climate Adaptation Transmission and Distribution Resilience Program, and the U.S. Department of Energy approved $95 million in federal funds on Aug. 30, 2023, after the Maui windstorms and wildfires to harden the five-island grid.
Federal utility guidance says pole-hardening work can include thicker or taller replacement poles and stronger materials. A direct hurricane hit could still disrupt the energy supply for weeks or months, especially in rural and rugged areas where crews must reach damaged poles and lines. Hurricane winds can damage or destroy homes, uproot trees, and knock down utility poles and power lines, cutting both electricity and communications.
A long outage can wipe out internet service, charge on cell phones and refrigeration, while making it harder to get information if winds or debris block access across remote parts of the island. The islands’ fuel stocks, repair supplies, manpower and access to damaged ports or airports all affect how fast service returns, and Hawaiian Electric says it has about 45 days of fuel back stock in a worst-case scenario, not counting damage to transmission lines, circuit breakers or other parts that would have to be shipped in.
The Public Utilities Commission has also directed Hawaiian Electric’s 2026-2027 wildfire-mitigation update after identifying areas that need improvement, and only three state buildings had completed or were undergoing hurricane retrofitting.
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