O&M = Operation and Maintenance
NM = Not meaningful because these plants did not generate during the year.
Notes: · Data for 2000 are final pending approval by the Environmental Protection Agency. Data for prior years are final. · Totals may not equal sum of components because of independent rounding. · A mill is a monetary cost and billing unit equal to 1/1000 of the U.S. dollar (equivalent to 1/10 of 1 cent).
Source: Energy Information Administration, Form EIA-767, "Steam-Electric Plant Operation and Design Report."