Officials with Charlotte, N.C.-based Duke Energy are asking the power company's customers in North and South Carolina to practice smart energy use as extremely cold weather continues.
The extremely low temperatures will put higher stress on the equipment used to generate and deliver electricity. Isolated equipment problems are possible, which could result in scattered outages.
The utility did not make public any estimates of electric power load, instead circulating a list of energy efficiency tips.
Duke Energy crews in Cincinnati, Ohio are battling to restore power to some 9,000 customers who lost electric service due possibly to a combination of transmission equipment malfunctions or fallen trees that damage power lines, according to reports.
System operators are closely monitoring the electric transmission system and the company has an adequate supply of electricity to meet demand, according to the utility.