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Florida filing questions whether billions in data center costs could fall on Duke Energy customers

September 17, 2026 · Updated September 18, 2026 · Curated by 247ignite
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Top StoryFlorida filing questions whether billions in data center costs could fall on Duke Energy customers

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A legal filing by Florida Rising Inc. challenges Duke Energy's compliance with SB 484, which mandates utilities prevent data center costs from being passed to residential customers. The filing claims Duke's "large load tariff" lacks the specific numeric rates required by law, potentially exposing customers to significant costs. Duke Energy has defended its approach, asserting its policies align with regulatory requirements and aim to protect ratepayers.

This is the latest in a series of regulatory challenges for Duke Energy. On July 30, the company stated data center revenues would reduce costs for existing customers, but critics argue its filings fail to meet legal standards, raising concerns about transparency and compliance.

Why it matters: Florida's decision could influence how utilities nationwide structure tariffs for energy-intensive industries like data centers. A ruling against Duke Energy may lead to stricter oversight, impacting utilities' ability to recover infrastructure costs.

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