Newington Station

Newington Station is PSNH's largest single-unit fossil fuel-fired generating facility.

Originally designed to burn low-sulfur fuel oil, Newington Station has also utilized natural gas since the installation of new gas lines and burners in 1992. Having two types of fuel to burn offers several advantages. When gas prices are high (or gas is unavailable), oil can be burned. The converse is also true. To optimize efficiency, we can burn oil or gas alone, or a use a combination of the two. This flexibility keeps operating costs and electric rates lower, and helps to ensure the reliability of power generation.

Newington Station has also been modified to improve air quality. Large electrostatic precipitators, installed when the plant was new, remove most of the ash particles from exhaust. Trapped ash is then recycled in the manufacture of Portland cement. And, using various methods, the amount of nitrogen oxide emitted by Newington Station has been reduced by more than 50 percent since 1992.

Facts at a Glance:

• 406 MW of output
• Supplies 200,000 residential, commercial and industrial customers
• Began commercial operation in June 1974
• Gas conversion in June 1992
• Burns natural gas and oil