SEMCO Energy Gas 2026 rate case
U-22002 · Opened Feb 23, 2026
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testimony
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SEMCO Energy Gas
SEMCO Energy Gas Company
MI · gas
- Open cases
- 1
- Updated
- Jul 20, 2026
Current economics
Oversight and service
Proceedings
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| Effective date | Proceeding | ROE | Common equity | Rate base |
|---|---|---|---|---|
| Jun 24, 2026 | SEMCO Energy Gas 2026 rate case U-22002 · Projected test year 2027 · Natural gas Compare stagesROE Utility request 10.75% → Consumer advocate 9.8% | 10.75% Utility request · Feb 23, 2026 | — | $1.19B Utility request · Feb 23, 2026 |
| Dec 6, 2019 | SEMCO Energy Gas 2019 rate case U-20479 · Projected test year 2020 · Natural gas | 9.87% Authorized · Dec 6, 2019 | 54% Authorized · Dec 6, 2019 | $718.9M Authorized · Dec 6, 2019 |
View full observation log (12)
| Metric | Date | Stage | Value | Scope |
|---|---|---|---|---|
| Return on equity | Jun 24, 2026 | consumer advocate | 9.8% | Michigan Attorney General testimony recommendation |
| Common equity ratio | Dec 6, 2019 | authorized | 54% | MPSC-authorized common-equity share of overall ratemaking capital structure. |
| Overall rate of return | Dec 6, 2019 | authorized | 6.44% | MPSC-authorized overall rate of return. |
| Rate base | Dec 6, 2019 | authorized | $718.9M | Rate base reflected in SEMCO's last general rate order, as reported in its 2026 filed summary. |
| Annual revenue change | Dec 6, 2019 | authorized | $19.9M/year | MPSC-authorized normalized annual gas distribution revenue increase. |
| Annual revenue change | — | utility request | $38.11M/year | Requested normalized annual gas distribution revenue increase. |
| Return on equity | Dec 6, 2019 | authorized | 9.87% | MPSC-authorized return on common equity. |
| Overall rate of return | Feb 23, 2026 | utility request | 6.62% | SEMCO's requested overall rate of return. |
| Rate base | Feb 23, 2026 | utility request | $1.19B | SEMCO's requested 13-month-average rate base for the 2027 projected test year. |
| Revenue change | Feb 23, 2026 | utility request | 15% | Requested total-service increase stated by SEMCO. |
| Annual revenue change | Feb 23, 2026 | utility request | $61.3M/year | Requested 2027 projected annual gas distribution revenue deficiency. |
| Return on equity | Feb 23, 2026 | utility request | 10.75% | SEMCO's requested return on common equity. |