Alpena Cement Plant
Other power plant · Alpena County, Michigan
Nameplate capacity
47 MW
Rank in Michigan
#92
of 289 plants
In service since
1952
January 1952
Details
- Primary fuel
- Other
- Technology
- Petroleum Coke
- Operator
- Lafarge Corp
- County
- Alpena County
- Generating units
- 5
- Share of state capacity
- 0.13%
- Rank among other plants in Michigan
- #4 of 55
- EIA plant code
- 50305
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN6 | Petroleum Coke | 12 MW | 12 MW | 1952 | Operating |
| GEN8 | Petroleum Coke | 11 MW | 11 MW | 1991 | Operating |
| GEN9 | Petroleum Coke | 11 MW | 11 MW | 1994 | Operating |
| GEN7 | Petroleum Coke | 10 MW | 10 MW | 1955 | Operating |
| GE10 | Petroleum Coke | 3.2 MW | 3.2 MW | 1999 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Michigan
| Assembly Solar Project | Solar | 50 MW |
| Wyandotte | Natural gas | 49 MW |
| Cadillac Renewable Energy | Other | 44 MW |
| Edison Sault | Hydro | 42 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 47 MW solar plant and a 47 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Michigan power plants · What Michigan actually generates