SEMCO Energy Gas
MI · U-22002 · Testimony
← All companies
AltaGas Ltd.
- Open matters
- 1
- Pending outcomes
- 0
- Last review
- Jul 20, 2026
Operating utilities
| Operating utility | Regulator | Rate base | Authorized ROE | Authorized equity ratio | Open matters |
|---|---|---|---|---|---|
| SEMCO Energy Gas MI · gas | $718.9M | 9.87% | 54% | 1 | |
| Washington Gas Virginia VA · gas | Not specified | 9.2% | 53.48% | 0 |
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
Most recent ROE and rate-base observations by operating utility.
| 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 tariffs
No published large-load tariff is linked to this parent portfolio.
Open large-load regulation →