Weekend Musing Are Electric Cars really Green? MacroBusiness

19 Фев 2014 | Author: | Комментарии к записи Weekend Musing Are Electric Cars really Green? MacroBusiness отключены
MITSUBISHI i-MiEV – Electric Car Keiko 47kW Auto

Weekend Musing: Are Electric really Green?

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Lately it that with increasing the idea of Electric cars up in the popular media and it would to be a good idea . Somehow the is conveyed that petrol cars are a thing of the past and the future is electric, in fact its the other way around. Electric were more popular at the end of the Century and it wasn t until the Twentieth century that in internal combustion engines led to the public moving away electric vehicles and across to powered by internal combustion Back in the late Ninteenth it was electric vehicles which the public attention and held all the

Records such as breaking the barrier (Camille Jenatzy on 29, 1899) were held by powered cars.

A wonderful vignette comes from :

Electric cars found among well-heeled customers who them as city cars, their limited range to be even less of a disadvantage.

While basic electric cost under $1,000 (in dollars, roughly $26,000 most early electric were massive, ornate designed for the upper-class customers made them popular. featured luxurious interiors, with expensive materials, and $3,000 by 1900 (roughly today). Sales of electric peaked in 1912.

Which is how things are again today, but I ll get to that in a moment.

By the mid twentieth internal combustion engined had developed and advanced to the point there were less and advantages to electric cars and in speeds, range and the speed of the car left almost no reasons to an electric over an internal engine. Ultimately the reasons for the of the Electric car were economic in

In the years of the twentieth century were a few revivals of interest in cars, with reasons from the fuel shortages to of clean air. In the twenty century it seems there is a revival of interest in the electric car Hybrid cars appearing on the and even fully electric such as the Nissan Leaf.

So has changed to bring the electric car into public attention? Is it the economic argument for them? its something more complex a shift in technology that has new advantages to the Electric car.


I d like to think so, but sadly I that its more about objectives and slightly biased even one-eyed or even information about these Actually I wonder if its even so much as spin.

The public is at the grappling with the problems of to our environment and understanding which of are human created and which are While in the past we have on pollutants in the air such as S0x, Particulates, toxic metals copper, mercury), CFC s, Radioactive and even fine soot we now our attention on only one waste of industry and that is C02. aside for a moment any discussion is or is not CO2 a problem, lets examine if Cars actually do much to us reduce C02.

Electric are often marketed as having green house gas emissions . is rather slanted because of generating the electricty that the car is most likely going to some greenhouse gases. in Australia most of our electrical comes from coal it is like saying I don t kill but I buy meat .

So since its pretty clear electric cars do rely on generation which produces GHG hands up here who s keen on it would make sense for an minded person to examine how much they use.

efficiency: this is the measure how a system is in capturing that liberated by burning something energy we can use (like the turning of the crank to move a car forwards). Combustion Engines (ICE) at efficiencies that range about 28% through to about This means that for 100kW of energy in fuel we get 30 or so kW at the engine.

As it happens the average of a well managed power which burns coal for its is also about that

So straight up it would look like both the ICE Car and the Electric Car generate about the same of C02.

But there is a little to it than that.

You see when you buy 40L of at the fuel station, and put that your your car, car has 40L of fuel to use to convert into the car. When you generate at the station, you have to move it to home, you may lose as much as 50% of energy in the transmission of that Further when you put 1kW of energy charging a battery you will not get 1kW of back out of it.

Depending on the battery technology you ll get 70% (NiCAD) 80% (LiION) and up to 99% with

MITSUBISHI i-MiEV – Electric Car Keiko 47kW Auto

So, just looking at some electrical engineering and physics it be seem that if your was reduction of CO2 then you wouldn t to get an Electric Car because it may use as much as an equivalent ICE Car.

The more that you examine this in, the it seems to get. For instance the other day on the radio the representatives for were calling on people to their power consumption so as to the burden on our electrical infrastructure :

Our for today and the next couple of with the heat continuing is for to take it easy particularly those peak times of 4pm to 8pm generally everyone goes from work and turns the air on, cooks their dinner and the television on.

So if more people started to Electric Cars it would be worse, as it would become goes home from plugs in their car to recharge and the air conditioning on, cooks their and turns the television on .

While infrastructure problems are solvable more money), the problems of efficiency (how much you for how far you go) still points to the Electric Car as inferior. To make matters people at places like keep doing things to ICE cars, with the next of the Prius car perhaps reaching 45% Which makes it even ahead in the reduction of CO2.

Ok, do you back when I discussed the car being mainly the popular among the wealthy? Well a look at the basic dollars of economical analysis suggests bang for buck you pay about 3 for an electric vehicle as you do for an equivalent For instance the Holden (GM) recently arrived on Australian from the USA and is set to be selling for $59,990 on-road costs, dealer charges and Government stamp Meanwhile the ICE version of that car is sold at $21,990 drive-away.

Yet you don t to be getting much more in the way of and certainly not much better for the environment.

So it isn t easy being green more so when you find out the thing marketed to you as the green that has zero green gas emissions actually doesn t and produces more.

You have to ask what Julius Sumner always asked why is it so?

Perhaps of the answer is to not believe what the people tell you, be of government picking winners and importantly) examine the facts As Thomas Tusser once

A foole and his monie be soone at which after with repents him too late.

MITSUBISHI i-MiEV – Electric Car Keiko 47kW Auto
MITSUBISHI i-MiEV – Electric Car Keiko 47kW Auto
MITSUBISHI i-MiEV – Electric Car Keiko 47kW Auto
MITSUBISHI i-MiEV – Electric Car Keiko 47kW Auto
MITSUBISHI i-MiEV – Electric Car Keiko 47kW Auto
MITSUBISHI i-MiEV – Electric Car Keiko 47kW Auto

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