Basic Facts:
- Location: Middletown, Pennsylvania
- Owner: Exelon Corporation
- Operator: Exelon Nuclear
- Construction Cost: $2.6B (2018$)
- Plant Output: 840 MW
- Property Size: 810 acres
- Status: Closure Announced
- Employees: 675
- Expected Shut Down Date: 2019
- Current DTF Balance: $650M (2018$)
- DTF Balance Prior to Decommissioning: $930M (2018$)
- Decommissioning Cost Estimate: $490M (2018$)
- Spent Nuclear Fuel on Site: 667 metric tons
Background
Three Mile Island Unit 1 is an 820MW pressurized water reactor located on the shores of the Susquehanna River. Unit 1 construction began in 1968 and the facility began commercial operations in 1974. Unit 1 received an initial operating license of 40-years. In 2009, the NRC granted Unit 1 a twenty-year license extension thereby extending its licensed operational life to 2034.
In 2017, plant owners announced their intention to close Unit 1 in 2019 unless plant economics became more favorable. In 2018, the Pennsylvania General Assembly’s Nuclear Caucus released a bicameral report more fully exploring this issue.
Socioeconomics
The Three Mile Island Generating Station is located within Dauphin County, Pennsylvania. As of 2016:
- Population: 280,000
- Per Capita Annual Income: $49,000
- Unemployment rate (not seasonally adjusted): 4.5%
The annual payroll at the Three Mile Island Generating Station is approximately $60M and in 2017 the plant contributed $1M in property tax payments.
Contact Information
Economic Development Administration Representative:
- Christopher Casper, Philadelphia Regional Office, t: (215) 597-1074, e: ccasper1@eda.gov
University Center
Nuclear Regulatory Commission Contact
- Diane Screnci, Sr. Public Affairs Officer, t: (610) 337-5330, e: diane.screnci@nrc.gov
- Three Mile Island Unit 1
Unless specific costing information has been provided, decommissioning costs were derived from 2017 Decommissioning Funding Status Report.
Information herein obtained from public sources. Corrections are welcome and may be directed to info@decommissioningcollaborative.org.