Columbia subject headings:
Duke Power Company--History.
Electric power-plants--North Carolina--History.
Electric power-plants--South Carolina--History.
Electric utilities--United States--History.
Harvard subject headings:
Duke Power Company--History.
Electric power plant equipment industry--United States--History.
Electric power-plants--United States--Design and construction--History.
Princeton subject headings:
Duke Power Company--History.
Electric power-plants--North Carolina--History.
Electric power-plants--South Carolina--History.
Electric utilities--United States--History.