SEMCO Energy Gas
MI · U-22002 · Testimony
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AltaGas Ltd.
- Open matters
- 1
- Pending outcomes
- 0
- Last review
- Jul 20, 2026
Current portfolio
Operating utilities
Coverage and review status by utility
| Operating utility | States and regulators | Matters | Economics | Large load | Last review |
|---|---|---|---|---|---|
| SEMCO Energy Gas Current ownership · start date not captured | MI | 1 open 2 total | 2 cases with headline values | None published | Jul 20, 2026 |
| Washington Gas Virginia Current ownership · start date not captured | VA | 0 open 1 total | 1 cases with headline values | None published | Jul 18, 2026 |
Open rate cases
View all →Recent decisions
Washington Gas Virginia
VA · PUR-2018-00080
SEMCO Energy Gas
MI · U-20479
Across operating utilities
Regulatory economics
Requested and authorized revenue
Case values remain separate by utility and docket; they are not summed across test periods.
| Utility and case | Stage | Requested | Authorized |
|---|---|---|---|
| SEMCO Energy Gas U-22002 | Testimony | $61.3M | Not available |
| SEMCO Energy Gas U-20479 | Complete | $38.11M | $19.9M |
ROE and rate-base history
Latest source-backed observations across the parent portfolio.
| Utility | Metric | Position | As of | Value |
|---|---|---|---|---|
| SEMCO Energy Gas U-22002 | Return on equity | consumer advocate | Jun 24, 2026 | 9.8% |
| SEMCO Energy Gas U-22002 | Rate base | utility request | Feb 23, 2026 | $1,188.3M |
| SEMCO Energy Gas U-22002 | Return on equity | utility request | Feb 23, 2026 | 10.75% |
| Washington Gas Virginia PUR-2018-00080 | Rate base | authorized | Dec 20, 2019 | Not specified |
| Washington Gas Virginia PUR-2018-00080 | Return on equity | authorized | Dec 20, 2019 | 9.2% |
| SEMCO Energy Gas U-20479 | Rate base | authorized | Dec 6, 2019 | $718.9M |
| SEMCO Energy Gas U-20479 | Return on equity | authorized | Dec 6, 2019 | 9.87% |
Large-load exposure
No published large-load tariff is linked to this parent portfolio.
Open tariff tracker →