Table 4.12. Fuel-Switching Capacity of Operable Generators Reporting Petroleum Liquids as the Primary Fuel,
by Producer Type, 2012 (Megawatts, Percent)

  Fuel-Switchable Part of Total
Producer Type Total Net Summer Capacity of All Generators Reporting Petroleum as the Primary Fuel Net Summer Capacity of Petroleum-Fired Generators Reporting the Ability to Switch to Natural Gas Fuel Switchable Capacity as Percent of Total Maximum Achievable Net Summer Capacity Using Natural Gas
Electric Utilities 26,732 7,640 28.6 7,224
Independent Power Producers, Non-Combined Heat and Power Plants 18,644 7,867 42.2 6,628
Independent Power Producers, Combined Heat and Power Plants 317 -- -- --
Electric Power Sector Subtotal 45,693 15,507 33.9 13,852
Commercial Sector 443 21 4.8 21
Industrial Sector 1,032 44 4.2 35
All Sectors 47,167 15,572 33.0 13,908

Notes: Petroleum includes distillate fuel oil (all diesel and No. 1, No. 2, and No. 4 fuel oils), residual fuel oil (No. 5 and No. 6 fuel oils and bunker C fuel oil), jet fuel, kerosene, petroleum coke (converted to liquid petroleum, see Technical Notes for conversion methodology), waste oil, and beginning in 2011, synthetic gas and propane. Prior to 2011, synthetic gas and propane were included in Other Gases.
In 2011, EIA corrected the NAICS codes of several plants which resulted in a net capacity shift from the electric utility sector to the commercial sector.
Source: U.S. Energy Information Administration, Form EIA-860, 'Annual Electric Generator Report.'