Recent developments in the energy field have necessitated review of state implementation plan requirements in the light of known or predicted shortages of oil and/or gas. In addition, the Energy Supply and Environmental Coordination Act (June 1974) requires certain analyses relating to power plant fuel use and the resultant impact on air quality. As a result, short-term modifications to plan requirements may be necessary to accommodate to the types and grades of fuel available; also, longer term alterations in fuel types and usage patterns may be required. These modifications may involve substitution of fuel types (e.g., coal for oil) or use of fuels with a higher sulfur content at selected power plants. As the principal single user of fossil fuels, power plants offer the most expeditious means for accommodating to available fuels with minimum impact upon air quality. The purpose of the present study is to estimate the probable impact on annual and 24-hour SO2 concentrations for 1972 operations at the remaining large power plants in the Nation. Volume II outlines the analyses by GEOMET, Incorporated, covering 206 power plants in 68 AQCRs. Also included is the fuel consumption of these plants for 1972.

EPA Project Officer: Connally Mears. Prepared by Geomet, Inc. Contract Number: 68-02-1483 Published with volume I, same title (EPA-450/3-75-062). "June 1975." Final report. Includes bibliographical references (page 47). "EPA-450/3-75-063." PB-246082.