How old are U.S. nuclear power plants, and when was the newest one built?
As of June 2019, the average age of operating U.S. commercial reactors is about 39 years. The oldest operating reactor is Nine Mile Point 1 in New York, which entered commercial service in December 1969. The newest reactor to enter service is Tennessee’s Watts Bar Unit 2, which began operation in June 2016. The next-youngest operating reactor is Watts Bar Unit 1, also in Tennessee, which entered service in May 1996.
The U.S. Nuclear Regulatory Commission (NRC) licenses U.S. commercial nuclear reactors for 40 years. Prior to termination of the original license, companies may apply to the NRC for 20-year license extensions.
Does EIA have data on each power plant in the United States?
Nuclear power plant data
Watts Bar Unit 2 Complete and Commercial
Status of NRC reactor license renewal applications
Last updated: July 10, 2010
Other FAQs about Electricity
- Can electric utility customers choose their electricity supplier?
- Does EIA have county-level energy production data?
- Does EIA have data on costs for electricity transmission and distribution?
- Does EIA have data on each power plant in the United States?
- Does EIA have energy consumption and price data for cities, counties, or by zip code?
- Does EIA have projections for energy production, consumption, and prices for individual states?
- Does EIA publish data on peak or hourly electricity generation, demand, and prices?
- Does EIA publish electric utility rate, tariff, and demand charge data?
- Does EIA publish electricity consumption and price data by state and by utility?
- Does EIA publish the location of electric power plants and transmission lines?
- How is electricity used in U.S. homes?
- How many nuclear power plants are in the United States, and where are they located?
- How many power plants are there in the United States?
- How many smart meters are installed in the United States, and who has them?
- How much coal, natural gas, or petroleum is used to generate a kilowatthour of electricity?
- How much does it cost to build different types of power plants in the United States?
- How much does it cost to generate electricity with different types of power plants?
- How much electricity does a nuclear power plant generate?
- How much electricity does an American home use?
- How much electricity is lost in electricity transmission and distribution in the United States?
- How much electricity is used for cooling in the United States?
- How much electricity is used for lighting in the United States?
- How much energy does the world consume by each energy end-use sector?
- How much of U.S. carbon dioxide emissions are associated with electricity generation?
- How much of U.S. energy consumption and electricity generation comes from renewable energy sources?
- How much of world energy consumption and production is from renewable energy?
- How old are U.S. nuclear power plants, and when was the newest one built?
- What is U.S. electricity generation by energy source?
- What is the difference between electricity generation capacity and electricity generation?
- What is the efficiency of different types of power plants?
- What is the outlook for home heating fuel prices this winter?
- What types and amounts of energy are produced in each state?