MI · electric · U-21565
Closed case·Complete·Authorized
No case narrative is published.
Dec 19, 2024
Not scheduled
Case stage
complete
Filed
Not recorded
Testimony
Not recorded
Hearings
Not recorded
Briefing
Not recorded
Decision
Dec 19, 2024
Rates effective
Current stage
State rules
This docket is a full base-rate review. Selected charges can change on separate schedules without reopening every issue in this case.
Full base-rate review
No fixed recurring interval
A utility files when it seeks a base-rate change. The MPSC's general framework does not impose a common annual or multi-year filing cycle, but it requires a final Commission decision within 10 months of the application.
Rate period: Filing-specific forecast, historical support, and standard rate-case schedules.
Governing rule ↗Between full reviews
Power and gas supply cost recovery
Variable surcharge · annual reconciliation
PSCR and GCR surcharges recover fuel, purchased power, transmission, and gas-supply costs above the amount in base rates. Actual costs are reconciled annually after a prudence review.
Governing source ↗Investment Recovery Mechanism
Utility- and order-specific
An approved IRM can fund specified distribution investments between general rate cases. Collections and actual spending are reconciled under the terms of the utility's Commission order.
Governing source ↗Commission decision
Utility request and Commission-authorized outcome.
| Metric | Utility request | Authorized outcome | Like-for-like difference |
|---|---|---|---|
| Annual revenue increase | Not available Annual utility request | Not specified Total company rate-case request or Commission-authorized outcome · Dec 19, 2024 | — |
| Rate base | $84.11M Projected test year ended December 31, 2025 · Dec 31, 2025 | Not available Authorized value not captured | — |
| Return on equity | Not specified Total company rate-case request or Commission-authorized outcome · Dec 19, 2024 | Not specified Total company rate-case request or Commission-authorized outcome · Dec 19, 2024 | — |
| Common equity ratio | Not available Not captured in current case sources | Not available Authorized value not captured | — |
| Residential bill impact | Not available Not captured in current case sources | Not available Authorized value not captured | — |
Prior authorizations, mechanism values, actuals, and company projections are shown separately because they are not default like-for-like case comparisons.
Common equity ratio
authorized · Northern States Power Wisconsin Michigan electric capital structure. · Dec 19, 2024
50%
Return on equity
authorized · Northern States Power Wisconsin Michigan electric rates for 2025 and 2026. · Dec 19, 2024
9.8%
1 event · 2 documents · 2 citations
Material filings, hearings, orders, and effective dates.
Dec 19, 2024
Final order issued
official commission · completed
Docket and evidence documents linked to this proceeding.
MPSC 2024 Annual Report
evidence · primary · Dec 19, 2024
NSP-W Michigan electric rate case summary
evidence · direct · Jun 24, 2024
Field-level excerpts and review metadata supporting material facts.
NSP-W Michigan electric rate case summary
utility rate case summary · Jun 24, 2024
MPSC 2024 Annual Report
commission filing · Dec 19, 2024
Stage-preserving economics and party positions as published in the canonical record.
| Metric | Stage | Party | Period | Value | Evidence |
|---|---|---|---|---|---|
| Rate base | utility request | Northern States Power Company — Wisconsin, Michigan operations | Projected test year ended December 31, 2025 | $84.11M | |
| Annual revenue change | authorized | party-commission | — | Not specified | |
| Annual revenue change | utility request | Northern States Power Company — Wisconsin, Michigan operations | — | Not specified | |
| Return on equity | authorized | party-commission | — | Not specified | |
| Return on equity | utility request | Northern States Power Company — Wisconsin, Michigan operations | — | Not specified |