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Energy Consumption Energy Consumption by Fuel | Fuel Consumption by End Use | Energy Consumption by Sector | Energy Expenditures | Onsite Generation | Energy Intensity About 32% of electricity used by the petroleum industry is produced onsite, primarily be means of cogeneration. The refining industry is the third largest cogenerator in the manufacturing sector. Cogeneration can provide competitive advantages over purchased electricity, since thermal efficiencies are much higher and excess electricity can be sold back to the grid. Petroleum refineries have steadily increased cogeneration capacity, which has more than tripled since 1985. [MECS 1998] (Million kWh)  Total: 54,137 million kWh Source: MECS 1998 (Million kWh)  Source: MECS 1998, 1994, 1991, 1988, 1985 Page last modified on
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