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Central Eastern Europe GRIP 2017
5.4.2 POTENTIAL CO₂ SAVINGS
An extensive analysis was conducted in order to estimate the potential annual green-
house gas savings by substituting 5% of total diesel fuel consumption with CNG in
the CEE region. The expected results for both methodologies can be seen in Figures
5.8 and 5.9.
0
5,000
10,000
15,000
Diesel
CNG
GHG savings
th. t
CO
2eq
12,650
12,173
106 102
−3.8%
477
Figure 5.8:
GHG – 5% substitution of diesel fuel by CNG, JEC methodology
0
5,000
10,000
15,000
Diesel
CNG
GHG savings
12,793
11,282
106 102
−11.8%
1,511
th. t
CO
2eq
Figure 5.9:
GHG – 5% substitution of diesel fuel by CNG, DLR & Partners’ methodology
The results show a greenhouse gas reduction of 3.8% using the JEC methodology,
which represents 477 thousand tons of CO ²
eq
. When the DLR & Partners’ method-
ology is employed, an even more significant GHG reduction of 11.8% is achieved,
corresponding to 1,511 thousand tons of CO ²
eq
. This figure incorporates not only
passenger cars but also buses, which represent heavy-duty vehicles. As described
above, an even more significant reduction can be reached by blending CNG with
biomethane.