Electric cars can also only go 70 to 100 miles on a single charge before the driver has to plug-in and power up again.
The new C-MAX Energi also has 60 more horsepower than the Prius plug-in hybrid considering full battery power, along with class-exclusive technologies such as hands-free liftgate and active park assist for easier parallel parking.
ENGADGET: Ford C-Max Energi pricing: $29,995 after a federal tax credit, available this fall
"Moreover, in places that do generate electricity from renewable sources, it would be more cost-effective to use that electricity to power electric or plug-in hybrid cars than high-speed rail, " O'Toole said.
In particular, E Source identified the 10 largest power-drawing plug loads while in active mode and the five largest energy-consuming plug loads over the course of an entire year.
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The latter would enable long-haul truckers to plug in to power their air conditioning systems, TVs, etc.
Once you're done with that you're able to plug them in and generate power from the get-go.
The batteries will power the Chevrolet Volt, a plug-in hybrid coming later this year.
But the 3 Series hybrid is not aimed at people looking to drive primarily on electric power anyway, unlike the new plug-in hybrids soon to be launched by Ford, Honda and Toyota.
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"SunPower is offering Ford plug-in vehicle owners the world's most efficient solar power systems to ensure they maximize emission-free power generation for use at home and for their vehicles, " says Ken Fong, SunPower general manager, Americas.
Kempton parks a plug-in Toyota Scion in his garage that can discharge 19 kilowatts of power from its battery.
The benchmark study, by the Natural Resources Defense Council and the Electric Power Research Institute (EPRI), found that plug-in hybrids are cleaner than regular cars in each of nine scenarios.
The advantage plug-in hybrids have over regular hybrids, its proponents say, is you can power them by electricity alone.
The Green Book, produced by the American Council for an Energy-Efficient Economy (ACEEE), says that in evaluating plug-in hybrids, it considers both the emissions from the gas engine and from the power plants that feed the grid.
FORBES: Green car book disses the Chevy Volt, GM isn't too happy
Today, Enterprise offers roughly 300 electric cars (including the Nissan Leaf, Chevy Volt and Toyota Plug-in Prius) and about 3, 200 hybrids (which run on both gasoline and electric power) throughout the United States, including California, Hawaii, Seattle, New York and Washington DC.
The BeagleBone Camera Cape, the newest cape plug-in board, eliminates the need for cameras to consume sometimes scarce USB ports and reduces total system power consumption.
ENGADGET: BeagleBone gets plenty of expansion options with new 'cape' add-ons
Google is testing a fleet of plug-in hybrids and software that would turn them into load-balancing tools for utilities flooded with variable power from wind and solar generators.
Gov. Andrew Cuomo is determined to pull the plug on the dinosaur-aged Indian Point nuclear power plant located on the northern outskirts of New York City in Buchanan, NY and a new study says the sky will fall if he does.
FORBES: Indian Point Pumps Nuclear Nonsense into New York City
FM, Felix Miller and Martin Stiksel hope their service will be able to suggest sites that you will like through a browser plug-in that captures the sites and pages you visit, and then uses this with anonymized data from other others to power the suggestions.
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