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14.7 MW Conventional Hydroelectric (2 MW) + Petroleum Liquids (13 MW) operating in Wrangell Petersburg, AK
14.7 MW
Nameplate Capacity
8
Generators
units
Hybrid (2)
Technology
Conventional Hydroelectric + Petroleum Liquids
1965
Operating Since
Coordinates
56.8110, -132.9571
County
Wrangell Petersburg, AK
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Petersburg Borough - (AK) | — | — |
| Owner(s) | Petersburg Borough - (AK) | — | — |
| Status | Operating | — | — |
The Petersburg plant, located in Wrangell Petersburg County, Alaska, is a hybrid power plant utilizing both conventional hydroelectric and petroleum liquids. Operated by Petersburg Borough, the plant has a total capacity of 14.7 MW distributed across 8 generators. It primarily runs on Distillate Fuel Oil (DFO). The plant began operating in 1965.
Petersburg's latest annual generation was 13,003 MWh, resulting in a capacity factor of 10.1%. The plant is ranked 16th out of 95 power plants in Alaska, and 246th out of 886 nationally.
Generated from EIA, GEM, and public data sources
Grid Region
—
Market
—
NERC Region
—
Balancing Authority
1.0K MWh
Latest Month
13.0K MWh
Annual Generation
10.1%
Capacity Factor
CO₂ Intensity
1593 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
31 lb/MWh
SO₂
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $33.7M
This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
Last updated 2026-03-26
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ask pi about Petersburg—
Grid Voltage
24.9 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
3 lb/MWh
CH₄
0.065 lb/MWh
N₂O
0.013 lb/MWh
Capacity Factor
0.5%
Annual Net Gen
1 GWh
CO₂eq
1599 lb/MWh
Subregion
ASCC Miscellaneous