Lancaster County commissioners will hear public input Wednesday morning about the Three Mile Island nuclear plant restart.Video above: The plan to restart TMI. The group "No TMI Restart" plans to urge commissioners not to cooperate with Constellation Energy's evacuation plan to prevent the plant's restart. The group's director, Gene Stilp, explained his main reason for opposing the plant. "Right now two of the largest corporations in America, Microsoft and Constellation Energy want to run this plant. They get all the benefits while the people here take all the risks. We don't want the people here to be slaves of Constellation Energy and Microsoft," Stilp said.Stilp also said the energy produced will not benefit the Susquehanna Valley but will instead be used by a Microsoft data center in Virginia.The communications manager for the Crane Clean Energy Center – the new name for TMI – said it's going to submit its plan to the Nuclear Regulatory Committee in a few weeks.David Marcheskie added that it would have feedback from the community."For more than 20 years, when Constellation has owned and operated Unit 1, it's had a proven safety track record. Constellation itself is the nation's largest operator of nuclear energy, and our fleet has a proven track record of safety and performance and excellence," he said.The Unit 1 reactor was shut down five years ago due to economic reasons. The restart comes as Microsoft signed a 20-year deal with Constellation to provide power for Microsoft's data centers.Constellation says they expect the refurbished power plant to be online in 2028.TMI restart planConstellation plans to make significant investments to restore:The plant’s turbineGeneratorMain power transformerCooling and control systemsRestarting a nuclear reactor requires:Approval from the U.S. Nuclear Regulatory CommissionA thorough safety and environmental reviewPermits from relevant state and local agenciesConstellation will seek a license renewal to extend plant operations until at least 2054.Video below: Harrisburg 1979, President Jimmy Carter visits TMI after partial meltdown.History of TMI: America's worst nuclear accidentThe Unit 2 reactor at Three Mile Island nuclear power plant in Dauphin County partially melted down on March 28, 1979.A combination of equipment malfunctions, design-related problems, and worker errors led to the partial meltdown.The incident prompted major changes in:Emergency response planningOperator trainingRadiation protectionOther areas of nuclear power plant operationsThe U.S. Nuclear Regulatory Commission increased its oversight due to the incident.Unit 2 was permanently shut down after the accident.Cleanup officially ended in December 1993.Below: Archival video, 1979 - Met-Ed officials announce partial meltdown.