Free Republic
Browse · Search
News/Activism
Topics · Post Article

To: NavVet
Electric cars use less energy because electric motors are extremely efficient at converting stored energy into forward motion. Around 90 percent compared to a gasoline engine that may only be around 25 percent efficient

To burn gasoline, you consume energy already stored by nature. To run electricity, you have to burn fuel to store and convert to electricity probably at the same efficients as the gas burners. I can't see electricity as more efficient. Add the efficiency losses to store the energy to that lost by converting stored electricty to kenetic energy, and I see electricty as more inefficient.

25 posted on 06/23/2012 5:45:06 PM PDT by LoneRangerMassachusetts (The meek shall not inherit the Earth)
[ Post Reply | Private Reply | To 13 | View Replies ]


To: LoneRangerMassachusetts

Well did some research into using a fuel cell(the Russians developed for space) which converted jet fuel directly into electricity, with water and CO exhaust. Using a ceramic electric motor were able to achieve around 50% efficiency. Wanted to make an electric airplane.

Problem the fuel cells were good for about 50 HP, and cost about $100,000, and the capillaries would clog after about 200 hours. Also took about 20 minutes to get the system going.


31 posted on 06/23/2012 5:57:57 PM PDT by stubernx98 (cranky, but reasonable)
[ Post Reply | Private Reply | To 25 | View Replies ]

To: LoneRangerMassachusetts

The electricity to run these vehicles is free, it comes off the trees or something.


74 posted on 06/23/2012 8:42:57 PM PDT by Figment
[ Post Reply | Private Reply | To 25 | View Replies ]

Free Republic
Browse · Search
News/Activism
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson