World Power Plants

St Marys is a 25 MW oil-fired power plant in the United States, operated by the City of St Marys - (OH) since 1995. Ranked #166 of 879 oil plants in the United States. Its 25 MW accounts for 0.07% of the country's total oil capacity of 38,410 MW. The largest oil plant in the United States is Manatee at 2,951 MW, making St Marys 118 times smaller. Nearby plants include Robert P Mone Plant (594 MW, Gas), Blue Creek Wind Project (302 MW, Wind), and Piqua Power Plant (36.3 MW, Oil). The facility is located in Ohio, approximately 80 km north of Dayton.

Capacity
25 MW
Commissioning Year
1995

31 years old

Owner
City of St Marys - (OH)
Location
40.5458°, -84.3889°

United States of America, North America

Context & rankings
  • 3,660. largest of 10,098 plants in United States of America
  • #17,704 worldwide by installed capacity
  • #833 of 2,478 Oil plants worldwide
Age & fleet comparison

31 years in operation

Oil fleet average: 28.7 years

Operator portfolio

City of St Marys - (OH) operates 1 plants totalling 25 MW

Regional density

58 plants within 100 km, 3,621 MW combined

Nearest plant: New Knoxville (8.5 km)

Location

Coordinates:: 40.545800, -84.388900
Open in Google Maps
Carbon Footprint650 g CO₂/kWh
Annual CO₂
49.8 Kt
77 GWh/year × 650 g/kWh
Cumulative CO₂
1.54 Mt
Over 31 years of operation
Past Retirement
2025
1 years past expected retirement
Annual emissions equivalent to
10.8K
cars per year
6.6K
homes per year
2.3M
trees to offset

Estimates based on Oil emission factor (650 g CO₂/kWh) and capacity factor (35%). Actual emissions may vary based on operating conditions, efficiency, and fuel quality.

Technical Details

Primary Fuel Type
Oil
Energy Source
Non-Renewable
Country
United States of America
Continent
North America
Data Source
Global Power Plant Database

United States of AmericaEnergy Profile

10,098
Total Plants
1420.7 GW
Total Capacity
GasCoalNuclearWind
Top Fuels

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