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Construction is under way on two massive 500-foot cooling towers at the Dominion Energy Brayton Point Power Station in Somerset, MA.
Brayton Point is New England largest fossil-fueled generating facility in New England, consisting of four generating units that produce enough electricity to power about 1.5 million homes, using low-sulfur coal, natural gas and fuel oil as its fuel.
Because the site abuts salt water, the concrete mix design includes multiple precautionary elements for increased density to prevent water infiltration. These include a corrosion inhibitor, fly ash and a new cementitious product, metakalin. Together, these will increase the longevity of the towers.
Investments in air emissions equipment at Brayton include an ash recovery system that offsets about 170,000 tons of carbon dioxide emissions each year and reduces landfill needs. Other equipment has been or is being installed by Dominion to reduce significantly sulfur dioxide, nitrogen oxide and mercury emissions.
These modifications will bring the investment in environmental improvements at Brayton Point to approximately $1.1 billion since the station was acquired in 2005.
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