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REGULATORY ENVIRONMENT - 2023 MGU RATE ORDER (Details) - MichiganPublicServiceCommissionMPSC - MGU $ in Millions | Aug. 30, 2023 USD ($)
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Public Utilities, General Disclosures [Line Items] |
Approved rate increase | $ 9.9
Approved rate increase (as a percent) | 4.70%
Approved return on equity (as a percent) | 9.80%
Approved common equity component average (as a percent) | 51.00%

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