As Benjamin reported on EcoGeek last week, even if all plug-in hybrid electric vehicles (PHEVs) were recharged by coal-based electricity, they would still be an improvement over regular cars. Take a look at this graph from Technology Review, who reported that “plug-ins always result in lower emissions than conventional cars.” They beat hybrids too, unless power is coming exclusively from coal:
This is important news, since the authors also estimate that by 2050, 60% of US transportation could be met by plug-in hybrid electric vehicles. Total impact on electrical generation may all depend on when the vehicles are charged. A recent study from Oak Ridge National Laboratory showed that charging vehicles during off-peak hours (after 10 pm) would result in only slight increases in energy draw, while charging them after work could require 160 new power plants over the next few decades.
More Posts on Plug-In Electric Cars:
- Plug-In Hybrids Could Require 160 New Power Plants By 2030 (Or None At All)
- Affordable Electric Cars Coming to US in 2009
- MIT Study Predicts Well-to-Wheel Vehicle Emissions for 2030
- Without Clean Electricity, Plug-In Vehicles aren’t So Hot
- Google To Spend $10 Million on Plug-In Hybrid Electric Vehicle Project