[1] On April 3, 2023, Homer City Generation announced a decision to shut down the power plant and be offline by June 2, 2023.

[3] Six workers were injured on February 10, 2011, when a six-inch, high-pressure steam pipe in Unit 1 ruptured and caused an explosion on the sixth floor of a building.

In 2011, Edison failed to secure financing to add pollution-control devices and announced plans to transfer full control to General Electric.

At the end of 2012 full control of the plant was transferred back to General Electric, which hired an NRG affiliate to operate it.

[9] The owners initially decided to continue operation,[10] but on April 3, 2023 Homer City Generation announced a decision to shut down the power plant and be offline by June 2, 2023.

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."

The organization Carbon Monitoring for Action (CARMA) reported in 2007 that this plant emitted 12,800,000 tons of CO2 and also ranked the facility as 33rd largest CO2 emitter in the United States.

[14] Homer City's three coal boilers installed Selective Catalytic Reduction to reduce ozone-forming NOx emissions in 2000 and 2001.