Electric Cars Good for the Environment?
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From: Lawrence Jenkins on 30 Jul 2010 17:09 "Mark Williams" <spam.me(a)your.peril> wrote in message news:CqSdnaRA3OcMus7RnZ2dnUVZ8i2dnZ2d(a)bt.com... > > "Lawrence Jenkins" <lawrence13(a)sky.com> wrote in message > news:4c51cbb8$0$7875$c3e8da3(a)news.astraweb.com... >> Hmmm, I wonder where they get all that generated electricity from- low >> Co2 fairy dust? > > Maybe not, but electric cars are very energy efficient. When you work out > the whole energy cost of getting oil out of the ground, refining it and > getting it into your car and then sticking it through an internal > combustion engine that is only about 18-25% efficient then the electric > cars do very well. They are also built on a lighter chassis because there > is a lighter engine, no need for a gearbox, clutch etc, and they can be > powered by electricity from renewable sources. > Yes Mark but where does the electricity come from in the UK?
From: johnty on 31 Jul 2010 08:47 On 30 July, 22:09, "Lawrence Jenkins" <lawrenc...(a)sky.com> wrote: > "Mark Williams" <spam...(a)your.peril> wrote in message > > news:CqSdnaRA3OcMus7RnZ2dnUVZ8i2dnZ2d(a)bt.com... > > > > > "Lawrence Jenkins" <lawrenc...(a)sky.com> wrote in message > >news:4c51cbb8$0$7875$c3e8da3(a)news.astraweb.com... > >> Hmmm, I wonder where they get all that generated electricity from- low > >> Co2 fairy dust? > > > Maybe not, but electric cars are very energy efficient. When you work out > > the whole energy cost of getting oil out of the ground, refining it and > > getting it into your car and then sticking it through an internal > > combustion engine that is only about 18-25% efficient then the electric > > cars do very well. They are also built on a lighter chassis because there > > is a lighter engine, no need for a gearbox, clutch etc, and they can be > > powered by electricity from renewable sources. > > Yes Mark but where does the electricity come from in the UK? You're missing the point, as usual. Using energy for any process is inevitable. Electric cars are about four times more energy efficient that petrol/diesel cars therefore by comparison a nation full of electric cars will make less demand on all the resources used than the equivalent nation full of internal-combustion-engined cars. So in answer to your question 'electric cars good for the environment' the answer is yes in terms of energy usage and we'd get a cleaner atmosphere, too.
From: johnty on 31 Jul 2010 08:51 On 30 July, 17:56, "Lawrence Jenkins" <lawrenc...(a)sky.com> wrote: > > I've thought about solar panels for generating DC electricty but the so > called grants available are for approved specialsit suppliers and fitters > who are going to charge a fortune made to look slightly less due to the > grant. But when you consider the low output with one £400 panel will produce > enough to power a light bulb at 100 watts before and after sunset and > considering the devices are only going to last around twenty years up on > your roof the economics of it is futile. That's not the point. Are you interested in panels to help the environment or to save you money? If you fit panels to heat your water, say, rather than run a 100w light bulb(?) you will reduce the demand on power stations by an equivalent amount. If we all did it, it would have a noticeable effect. If you want to just save yourself money and to hell with the environment, then either don't do it or accept that it will be many years before you break even.
From: Lawrence Jenkins on 31 Jul 2010 10:32 "johnty" <johnty1(a)hotmail.com> wrote in message news:adeef863-a219-4786-960a-28055375749e(a)l14g2000yql.googlegroups.com... On 30 July, 17:56, "Lawrence Jenkins" <lawrenc...(a)sky.com> wrote: > > I've thought about solar panels for generating DC electricty but the so > called grants available are for approved specialsit suppliers and fitters > who are going to charge a fortune made to look slightly less due to the > grant. But when you consider the low output with one �400 panel will > produce > enough to power a light bulb at 100 watts before and after sunset and > considering the devices are only going to last around twenty years up on > your roof the economics of it is futile. That's not the point. Are you interested in panels to help the environment or to save you money? If you fit panels to heat your water, say, rather than run a 100w light bulb(?) you will reduce the demand on power stations by an equivalent amount. If we all did it, it would have a noticeable effect. If you want to just save yourself money and to hell with the environment, then either don't do it or accept that it will be many years before you break even. __________________________________________________ Well my main point was that electricity in the UK has to be generated primarily through burning fossil fuels oil 38% gas 38% coal 17% renewable 1.8% nuclear almost 6% So electric cars would need fossil fuels to be used to charge their batteries so what is the point in that when the combustion engine is far more efficient. Howevr Johnty all that anthropogenic Global Warming is all tosh. Global temperatures all though very this last year are already starting to tumble you can watch daily here http://discover.itsc.uah.edu/amsutemps/amsutemps.html Arctic ice has been grwowing the last three years http://nsidc.org/data/seaice_index/images/daily_images/N_timeseries.png with recent arctic temps at latitude 80% N are running below average http://ocean.dmi.dk/arctic/meant80n.uk.php and the Antarctic has just recorded thethird highest sea ice levels since satellites started measuring in 1978. http://nsidc.org/data/seaice_index/images/daily_images/S_timeseries.png So in answer to your questions: Yes I would like to save money and be less dependable on imported fossil fuel prices for which the price the only way is up. I also like the idea that I would be saving finite resources and effiiciency is always wise, but for Global warming reasons forget it. Al Gorical the sainted nobel prize winner for his AGW film an inconvenient truth which warned of catastrophic sea level rises has recently pirchased a sea front home in California for 8 million $ .As the anericans say, go do the math.
From: Lawrence Jenkins on 31 Jul 2010 10:44
"johnty" <johnty1(a)hotmail.com> wrote in message news:9419f1ac-e04d-4093-8515-c6a0bc08190d(a)g19g2000yqc.googlegroups.com... On 30 July, 22:09, "Lawrence Jenkins" <lawrenc...(a)sky.com> wrote: > "Mark Williams" <spam...(a)your.peril> wrote in message > > news:CqSdnaRA3OcMus7RnZ2dnUVZ8i2dnZ2d(a)bt.com... > > > > > "Lawrence Jenkins" <lawrenc...(a)sky.com> wrote in message > >news:4c51cbb8$0$7875$c3e8da3(a)news.astraweb.com... > >> Hmmm, I wonder where they get all that generated electricity from- low > >> Co2 fairy dust? > > > Maybe not, but electric cars are very energy efficient. When you work > > out > > the whole energy cost of getting oil out of the ground, refining it and > > getting it into your car and then sticking it through an internal > > combustion engine that is only about 18-25% efficient then the electric > > cars do very well. They are also built on a lighter chassis because > > there > > is a lighter engine, no need for a gearbox, clutch etc, and they can be > > powered by electricity from renewable sources. > > Yes Mark but where does the electricity come from in the UK? You're missing the point, as usual. Using energy for any process is inevitable. Electric cars are about four times more energy efficient that petrol/diesel cars therefore by comparison a nation full of electric cars will make less demand on all the resources used than the equivalent nation full of internal-combustion-engined cars. So in answer to your question 'electric cars good for the environment' the answer is yes in terms of energy usage and we'd get a cleaner atmosphere, too. I don't know how carrying so much weight in storage batteries is efficient. The sensible sized cars can do no more than 80 miles before a recharge. Even cars like the Prius still rely heavily on a petrol engine. How mad can it be that a combustion engine is made even less efficient as it has to lug around the weight of the batteries and elecric drive motors and vice versa. I don't believe there's much space left for luggage . As for a cleaner atmosphere where do you think the waste gases go at the generating station Never Never Land? If motorist in britain switch to electric cars then the natial grid demand would increase with more oil, gas and coal being burnt to meet the demand and as far as I know that means exhaust fumes at the power station instead of where the vehicle burns the fuel. |