United States

Seabrook — 1,242 MW Nuclear

Nuclear Verified

Seabrook is a 1,242 MW nuclear power plant located in United States of America. View location, capacity, and technical details.

Capacity
1,242 MW

Installed

Commissioned
1990

Year online

Owner
NextEra Energy Seabrook LLC

Operator

Location
42.90, -70.85

Coordinates

Insights

#273
largest in United States of America
#290
largest Nuclear worldwide
#1,788
largest worldwide
1990
2 yrs newer than avg
1
operated by NextEra Energy Seabrook…
204
plants within 100 km

Technical Details

Fuel Type
Nuclear
Capacity
1,242 MW
Commissioned
1990
Status
Operational
Owner
NextEra Energy Seabrook LLC
Country
United States
Coordinates
42.899, -70.849

Carbon Footprint

Annual CO₂
110,975 t

tonnes / year

Lifetime CO₂
5,548,759 t

over ~50 yrs

Intensity
12 g

Est. gCO2/kWh

Annual emissions equivalent to

24,125
cars per year
14,797
homes per year
5,044,327
trees to offset

Indicative estimate from standard life-cycle emission and capacity factors — not a measured figure. Open calculator

Nearby Plants

About this plant

The Seabrook Nuclear Power Plant, located in Seabrook, New Hampshire, is a significant facility in the United States’ nuclear energy sector. With a capacity of 1,242 megawatts (MW), it plays a crucial role in providing reliable and low-carbon electricity to the New England region. Owned by NextEra Energy Seabrook LLC, the plant was commissioned in 1990 and has since been a prominent contributor to the energy grid, helping to meet the increasing demand for power while maintaining a focus on reducing greenhouse gas emissions.

As a nuclear power plant, Seabrook utilizes nuclear fission as its primary fuel source, specifically using enriched uranium as fuel. The process involves splitting the nuclei of uranium atoms to release a significant amount of energy, which is then converted into electricity through steam turbines. The plant employs a pressurized water reactor (PWR) design, which is widely used in the United States due to its efficiency and safety features. The reactor operates under high pressure, allowing water to remain in a liquid state even at high temperatures, which is essential for effective heat transfer and energy production.

Seabrook plays an essential role in the country’s energy sector by providing a stable and consistent source of electricity. Nuclear power plants like Seabrook are capable of running continuously for long periods, thereby offering baseload power—electricity that is generated continuously and reliably. This characteristic is particularly valuable in balancing the intermittent nature of renewable energy sources such as wind and solar power, which can fluctuate based on weather conditions. As a result, the Seabrook facility contributes to a diversified energy mix, which is critical for enhancing energy security and reducing dependence on fossil fuels.

In terms of environmental impact, the Seabrook Nuclear Power Plant generates electricity with minimal greenhouse gas emissions, making it a cleaner alternative to traditional fossil fuel power generation. However, concerns regarding nuclear waste management, potential accidents, and the environmental effects of uranium mining are important considerations. The plant has implemented stringent safety measures and regulatory compliance to mitigate these risks and ensure the safe operation of the facility. The long-term storage of nuclear waste remains a significant challenge for the industry, prompting ongoing discussions about sustainable solutions.

Regionally, Seabrook holds strategic importance for New England, where it helps meet the energy needs of millions of residents and businesses. The plant’s capacity significantly contributes to the regional power grid, bolstering local energy independence and stability. As New Hampshire and neighboring states work towards reducing energy costs and enhancing sustainability, the Seabrook Nuclear Power Plant stands out as a vital asset, supporting both economic growth and environmental stewardship in an era of increasing energy demands and climate concerns.

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