Alpena Cement Plant
Alpena County, Michigan · EIA plant ID 50305 · Operator: Lafarge Corp
Nameplate47MWSummer 47 MW
Generators5in service
Net generation216GWh12 mo to Aug 2026
Capacity factor52%gas/coal/oil units, summer MW
Heat rate12,032Btu/kWhfossil units, electric fuel, HHV
First online1952Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 309.1 | 74.8% | 9,000 |
| 2002 | 305.2 | 73.8% | 8,730 |
| 2004 | 288.4 | 69.6% | 5,099 |
| 2005 | 282.4 | 4.7% | 5,099 |
| 2006 | 273.5 | 0.0% | — |
| 2007 | 263.5 | 63.7% | 5,165 |
| 2008 | 206.8 | 48.7% | 5,305 |
| 2009 | 169 | 40.1% | 5,226 |
| 2010 | 174.9 | 41.7% | 5,192 |
| 2011 | 191 | 45.2% | 5,047 |
| 2012 | 201.9 | 48.2% | 5,035 |
| 2013 | 187.1 | 44.9% | 5,080 |
| 2014 | 177.5 | 42.4% | 5,085 |
| 2015 | 194.5 | 47.0% | 5,102 |
| 2016 | 183.6 | 43.7% | 12,133 |
| 2017 | 167.1 | 39.7% | 12,046 |
| 2018 | 157.2 | 37.6% | 12,259 |
| 2019 | 170.8 | 41.2% | 12,228 |
| 2020 | 177.5 | 42.8% | 12,144 |
| 2021 | 164.5 | 39.8% | 12,197 |
| 2022 | 167.4 | 40.5% | 12,101 |
| 2023 | 187.7 | 45.4% | 12,086 |
| 2024 | 184.6 | 44.5% | 12,076 |
| 2025 | 174.9 | 42.3% | 12,056 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GE10 | Petroleum Coke | ST | 3.2 | 3.2 | Feb 1999 | Operating | — | coming soon |
| GEN6 | Petroleum Coke | ST | 12 | 12 | Jan 1952 | Operating | — | coming soon |
| GEN7 | Petroleum Coke | ST | 10 | 10 | Jan 1955 | Operating | — | coming soon |
| GEN8 | Petroleum Coke | ST | 11 | 11 | Apr 1991 | Operating | — | coming soon |
| GEN9 | Petroleum Coke | ST | 11 | 11 | Apr 1994 | Operating | — | coming soon |
Owner / operator
Operator: Lafarge Corp. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Lafarge Corp | 100.0% | 47 MW |
Nearby plants
Within 80 km.
| Decorative Panels Intl | retired | 1.4 km |
| Ninth Street Hydropower Project | 1 MW | 2.4 km |
| Four Mile Hydropower Project | 2 MW | 7.8 km |
| Norway Point Hydropower Project | 4 MW | 9.4 km |
| Hillman Power LLC | retired | 38.1 km |
| Little Trout Solar | — | 39.8 km |