Homer City Generating Station is a 2-GW coal-burning power station near Homer City, in Indiana County, Pennsylvania, USA. It is owned by Edison International and operated by its subsidiary Midwest Generation. Units 1 and 2, rated at 660 MWe, were launched into operation in 1969. Unit 3, rated at 692 MWe nameplate capacity, was launched in 1977. It employs about 260 people, and generates enough electricity to supply two million households.


The Homer City Coal Power Plant is located in Center Township, Indiana County, Pennsylvania, occupying approximately 2,400 acres (9.7 km2). The site also includes the 1,800-acre (7.3 km2) Two Lick Reservoir, a water conservation facility which is operated by the station.

Coal supply

As of 2005, bituminous coal was delivered to the Homer City Generating Station by truck. Units 1 and 2 burned local Pennsylvania coal (that is cleaned on site in a coal cleaning plant) or Western Pennsylvania Pittsburgh seam coal. A flue gas desulfurization unit (scrubber) was added to Unit 3 which allows the unit to burn local coal. But now with diminishing local coal and mines to support it, they have reopened the train track that runs through Indiana University of Pennsylvania and now supplies are brought in by train.

Water use

Boiler water make up, condenser cooling water and potable water is taken from Two Lick Creek, processed through various pretreatment facilities, used and discharged through various environmental treatment facilities and returned to Two Lick Creek and Blacklick Creek.From there the Black Lick enters the Conemaugh River, which goes on to meet the Loyalhanna River, creating the Kiskiminetas River, before entering the Allegheny River.


This plant is a major polluter, ranking highly both nationally and within the state, recently releasing 8,500,000 pounds (3,860 metric tons) of toxic chemicals according to the Pittsburgh Post Gazette. Pennsylvania has ranked it the #2 polluter in the state. Homer City Generating Station releases huge amounts of mercury, sulfur dioxide, carbon dioxide, and other toxic or damaging chemicals. A scrubber was added in 1998 which reduced mercury output.

Mercury pollution

  • In 1998, Homer City Generating Station produced a total (air and other) of 2,963 pounds (1,344 kg) of mercury according to the Environmental Working Group.
  • In 2002, one source (Clear the Air (Hong Kong)) claims its air output of mercury was 545 pounds (247 kg).
  • For 2003 another source (Environment Maine Research and Policy Center) claims it produced 665 pounds (302 kg) of mercury air pollution.

Sulfur dioxide (SO2) pollution

  • In 1995, Homer City put out 127,383 pounds (57.780 metric tons) of SO2.
  • In 2003, Homer City put out 151,262 pounds (68.611 metric tons) of SO2 and was ranked SO2 polluter #4 in the nation.

Selenium in wastewater discharges

In 2007, the Pennsylvania Department of Environmental Protection (DEP) fined the owners of the Homer City electricity generating station, EME Homer City Generation LP, $200,000 for violating the Pennsylvania Clean Streams Law. The station exceeded its permitted effluent standards for selenium, total suspended solids, and biochemical oxygen demand in its wastewater discharges, and allowed unpermitted discharges of stormwater associated with its flue gas desulfurization scrubbers. "The facility has exceeded the effluent standards of its permit numerous times between December 2001 and the present, and this pattern of violations has to be addressed," DEP Southwest Regional Director Kenneth Bowman was quoted saying.

Carbon dioxide (CO2) emissions

In 2003, Homer City put out 14,000,000 pounds (6,400 metric tons) of CO2 and was ranked CO2 emitter #28 in the nation.

According to Public Citizen: "The plant ranks #33 in the nation for total CO2 emissions, contributing 13,745,174 tons of the pollutant primarily responsible for global warming to our atmosphere."

Architectural Mention

The plant's Unit 3 has a 371 metre (1,217 ft) tall chimney, which was built in 1977. This chimney is currently the third tallest chimney in the world, the second tallest in North America, and the tallest in the United States. On clear days, it is possible to spot the chimney from as far south as Greensburg, Pennsylvania and as far east as Ebensburg, Pennsylvania.

Homer City Generating Station
Country United States
Locale Center Township, Indiana County, Pennsylvania
Coordinates 40°30′39″N 79°11′37″W / 40.51083°N 79.19361°W / 40.51083; -79.19361
Status Active
Commission date Units 1, 2: 1969; Unit 3 1977
Owner(s) Edison International

Power station information
Primary fuel Bituminous coal
Generation units Steam turbine

Power generation information
Maximum capacity 2,022 MWe