Table 4.11. Fuel-Switching Capacity of Operable Generators Reporting Natural Gas as the Primary Fuel, by Producer Type, 2013
(Megawatts, Percent)

  Fuel-Switchable Part of Total
Producer Type Total Net Summer Capacity of All Generators Reporting Natural Gas as the Primary Fuel
Net Summer Capacity of Natural Gas-Fired Generators Reporting the Ability to Switch to Petroleum Liquids
Fuel Switchable Capacity as Percent of Total Maximum Achievable Net Summer Capacity Using Petroleum Liquids Fuel Switchable Net Summer Capacity Reported to Have No Factors that Limit the Ability to Switch to Petroleum Liquids
Electric Utilities 208,486 80,223 38.5 80,010 18,953
Independent Power Producers, Non-Combined Heat and Power Plants 171,654 42,099 24.5 37,883 8,646
Independent Power Producers, Combined Heat and Power Plants 29,081 6,487 22.3 6,080 1,264
Electric Power Sector Subtotal 409,221 128,809 31.5 123,973 28,863
Commercial Sector 1,779 788 44.3 755 106
Industrial Sector 14,390 1,330 9.2 1,247 282
All Sectors 425,390 130,927 30.8 125,975 29,252

Notes: Petroleum liquids include 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, waste oil, and propane.
Source: U.S. Energy Information Administration, Form EIA-860, 'Annual Electric Generator Report.'