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From: Neo on 3 Jul 2010 15:44 summary: A Department of Energy study found that depending on which electrical utility region an electric or plug-in hybrid recharges from the carbon footprint of the electricity provider to generate the electricity could be more than the carbon footprint generated by a regular gas-electric hybrid like the Toyota Prius. The Western part of the USA, especially the Northwestern USA states, is where electric and plugin hybrids would generate less carbon dioxide emissions than a regular hybrid. However, in the Mid-Atlantic states and the Upper Midwest States, a regular hybrid like the Toyota Prius would have a smaller carbon foot print than an all-electric car like the Nissan Leaf. In New york, Ohio, Illinoise, and the Southeastern states a regular hybrid(like the Toyota Prius), would have a smaller carbon foot print than an all electric car (like the Nissan Leaf) OR a plugin hybrid (like the Chevy Volt). analysis/commentary: Carbon foot print cause by electricity used by a Plugin or All Electric vehicle is very low if the electricity is generated by hydroelectric, solar, geothermal or wind power. Electric power generated by nuclear power would have a radioactive waste foot print (which is not identified in the source story). The source story identifies electrical utility regions where electricity is mainly generated by using coal/natural gas/diesel (fossil fuels) inwhich the electricity used by a EV or PHEV would indirectly generate a carbon dioxide footprint. source: The Dirty Truth about Plug-in Hybrids: How green is that electric car? Depends on where you plug in. Michael Moyer. Scientific American. July 2010. Vol. 303. Number 1. page 54-55
From: Neo on 16 Jul 2010 05:08
On Jul 3, 3:44 pm, Neo <residualselfimage1...(a)gmail.com> wrote: > summary: > > A Department of Energy study found that > depending on which electrical utility region > an electric or plug-in hybrid recharges from > the carbon footprint of the electricity provider > to generate the electricity could be more > than the carbon footprint generated by a > regular gas-electric hybrid like the Toyota > Prius. The Western part of the USA, especially > the Northwestern USA states, is where electric > and plugin hybrids would generate less > carbon dioxide emissions than a regular > hybrid. However, in the Mid-Atlantic states > and the Upper Midwest States, a regular hybrid > like the Toyota Prius would have a smaller > carbon foot print than an all-electric car > like the Nissan Leaf. In New york, Ohio, > Illinoise, and the Southeastern states a > regular hybrid(like the Toyota Prius), would > have a smaller carbon foot print than an > all electric car (like the Nissan Leaf) OR > a plugin hybrid (like the Chevy Volt). > > analysis/commentary: > > Carbon foot print cause by electricity > used by a Plugin or All Electric vehicle > is very low if the electricity is generated > by hydroelectric, solar, geothermal or > wind power. Electric power generated by > nuclear power would have a radioactive > waste foot print (which is not identified in > the source story). The source story identifies > electrical utility regions where electricity > is mainly generated by using coal/natural > gas/diesel (fossil fuels) inwhich the electricity > used by a EV or PHEV would indirectly > generate a carbon dioxide footprint. > > source: > The Dirty Truth about Plug-in Hybrids: > How green is that electric car? > Depends on where you plug in. > Michael Moyer. Scientific American. > July 2010. Vol. 303. Number 1. page 54-55 Both the Leaf and the Volt get about 100 miles/23kwh charge which translates to 4.348 miles/ 1.00 kwh charge. If electricity cost 18 cents/1.00 kwh charge then the recharging cost would be 18 cents per 4.348 miles. Supposing instead of buying gas at $2.70/gallon, one buys $2.70 of electricity at 18 cents per kwh ($2.70/15kwh) - this would allow the Leaf or Volt to travel an estimated 65 miles using electricity only. A 2010 Toyota Prius using an equivalent $2.70/ gallon of gas would travel an EPA estimated 50 miles, While hypermiling techniques could increase the Prius's range - such techniques could also increase the Leaf's or Volt's EV range as well... |