NW Natural files multi-year Washington rate increase request totaling $42.5M over three years

Northwest Natural Holding Co

Filed general rate increase with WUTC on Aug 29, 2025; covers ~98,000 customers (12% of total).
Year 1 revenue increase request: $25.6M (Aug 2026); Year 2: $8.6M; Year 3: $8.3M.
Assumes 51% common equity, ROE of 10.1% (Y1) to 10.2% (Y3), and rate base of $341.8M-$422.7M.
New rates expected Aug 1, 2026 after up to 11-month regulatory review.

item 8.01

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