
680 Principles of Sustainable Energy Systems
© 2008 Taylor & Francis Group, LLC
generation prole would be evened out, and this would also contribute to reducing CO
2
emissions, as well as the cost of producing electricity.
In summary, in a PHEV transportation system, if the charging of batteries is limited to
off-peak hours, this hybrid arrangement can
• Reduce the amount of petroleum consumed by the transportation sector
• Reduce the cost of driving
• Reduce CO
2
emission
• Improve the load prole of electric utilities
Although no quantitative analyses are as yet available, it is believed that the availabil-
ity of electric storage in the batteries ...