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Fuel burn (CO2) reduction

Since 2000 Rolls-Royce has steadily reduced gas turbine fuel burn by introducing innovative technologies for aerodynamics and materials into the Trent engine family. Significant progress has been made in reducing CO2 emissions and we are on track to attain the ACARE goal.

The EFE programme will enable the company to develop the complex technology integration required for further reductions in CO2 and NOx emissions.

Progress towards reaching the ACARE goals

Graph: % fuel saving targets (SFC: fuel consumption normalised for engine power, all figures are indicative). 1995: Trent 895, 0; 2000: Trent 500, -4; 2008: Trent 900, -7; 2010: Trent 1000, -12; 2020: ACARE engine goal, between -15 and -20 (to be obtained using new technologies including EFE).

Achieving the ACARE targets

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Reductions in emissions from aviation can be gained from three main sources:

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Target: Airframe plus Engine plus Operations can deliver 50 per cent reduction in CO2 emissions per passenger kilometre.