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Blog: Electric cars one way forward to reduce carbon emissions

November 30, 2011
By Claus A. Petersen, Vice President, Danfoss Customised Power Electronics


The current technology in electric cars makes the vehicles so energy efficient that it is only a matter of time before they are adopted by the mass market.


The production of electric cars has become a hot potato in recent years.

Supporters say electric vehicles help the environment through reduced carbon emissions, while opponents claim that obstacles such as low battery life and prohibitively high prices cannot be overcome so the project is doomed to failure. 

I say let’s stop pretending that electric cars are not the future. They contain the best and most energy-efficient technology available on the market. Therefore, it’s no longer a question of whether electric cars will be mass-produced; it’s about how many years will pass until it happens.  

Incentives to invest in new CO2-reducing technologies are currently flourishing for the automotive industry. The market receives massive political backing from leaders within the EU, the USA and China, who all recognize that emissions from the transport sector will need to decrease dramatically to combat global warming; in the EU by more than 50% before 2050.  

Today, there are around 1 billion cars on the world’s roads and electric vehicles represent less than 1% of them.

Unfortunately, some people advocate that investment in this area is wasted because the complicated technology makes the vehicles expensive. Well, if we were about to develop an internal combustion engine today, gasoline cars would only be for the filthy rich.

However, engineers have spent years and years optimizing the best engines and therefore cars can be sold at affordable prices today. Electric cars would also be priced competitively if they had been through the same development process.  

Another common argument against the development of electric vehicles is that they can’t claim to be ‘emission-free’ when they run on electricity generated from power plants that burn fossil fuels. This is simply not correct. Gasoline burned directly from an internal combustion engine emits higher levels of CO2 than do power plants when they produce electricity.  

Besides, I imagine that a great number of electric car batteries will be charged by electricity generated from wind and solar power due to current global investments in renewable energy sources.

In fact, a large number of electric vehicles (EV) fitted with Lithium-ion batteries would represent a significant storage capacity for electricity, helping to even out the fluctuations in supply and demand that are inevitable as the world increasingly adopts sustainable, but unpredictable, energy sources like the wind and the sun.  

With a strong focus on research and technology development, I am certain that we are soon to see cars with better batteries and lower prices. Of course this initiative alone cannot solve the global climate problems but the environmental impact will be significant and is one way forward to reducing carbon emissions.  

How do you perceive the future of electric cars? Let me know your thoughts in the comment section below.
Comments
Erik Steen Sørensen December 1, 2011
Like many other new technologies, they need to mature and become an advantage compared to 'old' tech.
Fully electric cars, have too many disadvantages - price, complexity, performance etc. For the very same reason, I assume hybrids will the gab for some years.
I would not be surprised, if the hybrids end up being the platform, where electric propulsion matures and eventually makes the combustion engine obsolete.

In order to get there, we need to make the extra cost worth while - not for the sake of our planet, although that's the noble part - but for because it's adds value. We need to find the combinations where we obtain extra value - we need to find synergies...

Imagine the hybrid ports car.
One with a 150HP combustion engine, with an 80HP electric engine.
Even with limited energy storage (price) for the electric engine - you'd have the extra power 'on demand' for overtaking on the highway and the improved mileage in the stop'n go traffic in the city.

Should I go for the bigger engine or the hybrid with better 'top' specs. and better mileage ... I'd take the last option and claim I'd do it all for the sake of our planet ;-)
Federico December 1, 2011
We are all agree that electric car is a good solution, and we are all agree about its high costs. In my opinion the solution, not only for cars, is the Perenedev Magnet Motor, look at this site:
http://peswiki.com/index.php/Directory:Perendev_Power_Developments_Pty_(Ltd)

BR
Claus A. Petersen - Danfoss December 1, 2011
Morten, Claus, thanks for your comments.

There are surely a number of tough challenges, both technical and political which need to be surmounted over the coming few years. Given that the majority of vehicles typically drive less than 50km a day, well within the range that even current technology allows, the potential for replacing part of the current automotive fleet with electric vehicles is significant.

There is also no doubt that there are a wide variety of incentives that could be introduced to accelerate the uptake of electric vehicles, in much the same was as solar and wind energy have been supported in many countries.
Morten November 30, 2011
No doubt electrical power driven cars is the future. We presently know of no other valid alternative to fossil fuel driven cars and we do know that one day there will simply not be any more fossil fuel not only for cars, but for all the other sectors consuming great volumes of fossil fuels and derives as raw material.
What seems to be missing is the incentive for the individual to go out and actually purchase an electrical powered car.
Prices are still high, charging solutions are limited and models available by producers often not very attractive.
Adding hereto, that the lobbing at high and low level is very strong makes the objective hard to reach.
For the manufacturer we talk high investment and limited market.
For the seller, the garage, the incentive is even lower as the maintenance costs on an electrical powered car are much lower. Less maintenance means less repair income for the garage.

How to move forward is to Push and Pull the market forward:
PUSH the manufactures to generate a certain part of their business in alternative energy sources.
PULL consumers towards the product with information and economic incentives.
Thanks
Claus Nielsen November 30, 2011
Some argue that the birth-to-grave environmental impact of EVs is higher than for other types of vehicles. This includes car production facilities, battery production, battery waste handling, EVs' higher weight needing more energy etc. In fact, with those arguments, the most environment-friendly cars are the ones developed a long time ago and having long lives - e.g. Jeep Wrangler and Land Rover Defender.
Apart from this theoretical debate, for the consumers, EVs' main disadvantages are range and price. EVs make a lot of sense in big cities with short distances and comfortable climate. In cold, damp or warm areas, the EVs will have trouble generating enough energy for heating, defrost and air conditioning, and outside the main cities on the highways, they soon run out of power.
So yes, there is a future for EVs, but for sure also for internal combustion engine cars and the hybrids in between. And for hydrogen cars, which hold a lot of promise.
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