Duke wants OK for temporary cooling setup

GASTON COUNTY, NORTH CAROLINA - Duke Energy has asked federal regulators to allow a temporary cooling-water system at the Allen power plant in Gaston County, allowing the plant to operate at full tilt through the late-summer drought.

Allen pulls millions of gallons a day from Lake Wylie and uses it to condense steam inside the coal-fueled plant. The warmed water is then piped into a canal where it cools before flowing into the South Fork of the Catawba River.

Drought makes it harder to cool the discharged water, which must be below 102 degrees before flowing back into the lake. Little water flows into Wylie from tributaries and Duke releases less water from its dam, reducing the circulation of fresh water in the lake. That problem could limit the amount of power that Allen, one of Duke's largest plants at 1,140 megawatts, can produce.

Demand for electricity is highest in summer, when air conditioners kick in around the region. Duke's solution: Draw 86 million more gallons a day from the lake to the canal. The 11 percent increase of cooler water would further dilute the warm discharge water. The utility applied Friday to the Federal Energy Regulatory Commission for permission to use the temporary system through September.

Without it, said Joe Hall, Duke's lake-services director, Allen might have to curtail its operations. The N.C. Division of Water Quality, which polices Duke's discharges to the lake, has already approved the request.

Next year, Duke plans to install a permanent system to bring in more cooling water each summer from July through September, allowing the plant to make more power. Since the drought took hold more than a year ago, Duke has sharply reduced operation of its hydroelectric power plants to conserve water in its lakes.

Earlier this year, the utility reconfigured its McGuire nuclear plant to allow Lake Norman to be reduced three feet below its previous minimum level. Duke also took an option to buy up to 520 megawatts of power from a natural gas-powered plant in South Carolina if its own plants can't run.

Related News

bc powerlines

Clean B.C. is quietly using coal and gas power from out of province

VANCOUVER - British Columbians naturally assume they’re using clean power when they fire up holiday lights, juice up a cell phone or plug in a shiny new electric car. 

That’s the message conveyed in advertisements for the CleanBC initiative launched by the NDP government, which has spent $3.17 million on a CleanBC “information campaign,” including almost $570,000 for focus group testing and telephone town halls, according to the B.C. finance ministry.

“We’ll reduce air pollution by shifting to clean B.C. energy,” say the CleanBC ads, which feature scenic photos of hydro reservoirs. “CleanBC: Our Nature. Our Power. Our Future.” 

Yet…

READ MORE
france-price-fixing-probe

French Price-Fixing Probe: Schneider, Legrand, Rexel, and Sonepar Fined

READ MORE

china coal station

Only one in 10 utility firms prioritise renewable electricity – global study

READ MORE

European gas prices fall to pre-Ukraine war level

READ MORE

'Unbelievably dangerous': NB Power sounds alarm on copper theft after vandalism, deaths

READ MORE