GRIP CEE 2017 / Main Report

5.4.4 EMISSION ASSESSMENT

The GHG emission evaluation using the JEC and DLR methodologies shows that NGVs offer about a 10% reduction of GHG compared to diesel vehicles. An additional 15% reduction can be reached by blending CNG with a 20% mixture of biometh- ane. Regarding pollutant emissions, NGVs have always been the cleaner option compared to diesel vehicles. With the introduction of EURO 6 standards, the costly after-treat- ment of diesel exhaust gases was established. However, it is questionable whether the existing driving test cycles of EURO 6 really guarantee the promised low emissions for urban transport. Future limits may make the after-treatment of diesel even more complex and costly. Especially in the sector of heavy-duty vehicles like buses and garbage collection trucks, NGVs today already possess significant ecological and economic advantag- es over diesel engines. These advantages will only magnify when, as a result of political pressure, diesel emissions are properly tested under typical operating conditions in urban areas. With the right cars available, passenger cars with high yearly mileage figures, like taxis and messenger services, offer a significant reduction potential of pollutants in city centres of the CEE region.

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Central Eastern Europe GRIP 2017 |

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