Net Power withdraws MISO interconnection request on higher upgrade costs

NET Power Inc.

On Dec 29, 2025, notified MISO of intent to withdraw interconnection request due to significantly higher anticipated network upgrade costs.
Company retains its site lease in northern MISO and is evaluating alternative development options for clean firm power generation.
No significant costs capitalized for the MISO Interconnection Request; withdrawal not expected to materially impact financial condition or results.
Management assessing alternatives to develop clean firm power at the site despite the setback.

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