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  "documentTitle": "NW Natural Holdings | Investor Conference Presentation Deck | 49 slides",
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  "authorName": "NW Natural Holdings",
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  "presentationDate": "2020-05-01 00:00:00",
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  "notes": "The slide outlines four specific regulatory mechanisms: Decoupling, Weather Normalization, Purchased Gas Adjustment, and Environmental Cost Recovery.",
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      "text": "Breaks link between earnings and consumption by removing incentive to increase usage. Employs use-per-customer decoupling calculation, which adjusts margin revenues to account for the difference between actual and expected customer volumes.",
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      "text": "Adjusts annual rates to reflect changes in expected cost of gas commodity purchases. Includes spot purchases, contract supplies, derivatives, storage inventories, in OR gas reserves. Includes temporary rate adjustments amortizing deferred regulatory account balances.",
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      "text": "Stabilizes collection of fixed costs for residential and commercial customers. Adjusts billings based on temperature variances compared to average weather. Applied from December through May of each heating season.",
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      "text": "Recovers environmental costs attributed to Oregon and Washington. Costs are subject to an annual prudence review and in Oregon an earnings test. Allows for deferral of environmental costs and in Oregon the accrual of carrying costs.",
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      "text": "(1) To the extent the utility earns more than its authorized ROE in Oregon in a year, the utility is required to cover environmental expenses and interest on expenses greater than $10 million (plus interest from insurance proceeds) with those earnings that exceed its authorized ROE",
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      "text": "SUPPORTIVE MECHANISMS",
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