Environmental Engineering Reference
In-Depth Information
10% for electricity charging and a conventional coal fired plant that emits 950 g
CO
2
/kWh produced.
PHEV at 4 mi/kWh
Solution:
The total commute of the PHEV at standard consumption and assuming
that it operates in only charge depleting (CD) mode implies that it will take
10 kWh. This amount of consumed energy translates back to the generating station
as 10 kWh/0.9 = 11.11 kWh. At the stated power plant's emission level, this results
in 950 g CO
2
/kWh
11.11 kWh = 10.5 kg CO
2
.
1.3 Vehicle electrification and more electric vehicle
The electrification actions discussed in Section 1.1 transform the automobile
from its historical heat engine power plant, transmission, driveline and axles
into dual power plant in the case of hybrids to electric-only power plant in case
7,000
6,000
Total
Petroleum
Coal
Natural gas
Cement production
5,000
4,000
3,000
2,000
1,000
1800
1850
1900
1950
2000
Figure 1.13 Total CO
2
emissions
