Do you know how long it takes to charge a battery electric car


Answer: The older generation Tesla superchargers (120 kW) can charge a 90 kWh battery at 80% in 40 minutes and 100% in 75 minutes. The new generation Ultra-e (350 kW) superchargers will capture 300 kilometers in 20 minutes while you have coffee. It’s perfectly in line with the road safety guidelines. In Switzerland the A BB group has installed an ultra-fast charging system (600 kW). Leon Musk has announced the arrival of Tesla superchargers of more than 350 kW. Air Liquid (c H 2 range) : “Challenge: What power do you think will be needed to charge one million battery-powered electric cars (0.4% of all cars in Europe) for just 20 minutes in a day? Fast-charging, is it a solution? “(Question followed by a video that has been viewed more than 300,000 times)

Answer: 1 million Toyota Maria Hydrogen, this corresponds to 114 G W of on board fuel cells. The 1.6 G W of superchargers mentioned by Air Liquid (13,888 superchargers of 120 kW) can be powered by 1.6 G W of stationary heat pumps. It should be noted that journeys over 300 kilometers are rare for a standard motorist and that fast charging is only necessary for these long journeys. It is rare in France that one million vehicles (3.1% of the national fleet of 32 million units) need to travel more than 300 kilometers in one go on the same day. More information on car cover.

Air Liquid (CHANGE) : “We must move towards a post-oil society. Battery electric cars are an option. Hydrogen electric cars, another. “Answer: The battery of the Tesla Model 3 will have a capacity of 55 KW h which will provide a range of over 300 kilometers. This battery will cost only 6875 dollars ( $ 125 per kWh  of storage), one fifth of the price of the complete car. For an electric car equipped with a 20 kWh battery ($ 2500) and a Hydrogen Extender to become competitive, it will then be necessary for the cost of the electronic PAC + to be less than $ 4375. The Toyota Maria Hydrogen (CAP of 114 kW) is sold from 66,000 Euros excluding taxes. Much of this cost is for the fuel cell and the electronics that go with it.

To travel 100 kilometers by hydrogen car costs about 10 Euros excluding taxes. It’s 5 times more expensive than an electric car battery. “The cost of compression at 700 bars from hydrogen at ambient pressure is prohibitive, “says a hydrogen engineer. Is Hydrogen Infrastructure Better Than New Generation Superchargers? California has just experimentally allocated $ 92 million to create in 2017 a network of 50 hydrogen charging stations. Or 1.7 million Euros per point of charge. The charge is made in 5 minutes. The 25 ultra-loader stations in the Ultra-e program (350 kW, load in 20 minutes) cost 13 million Euros, i.e. around 0.5 million Euros per supercharger. If the charge is 4 times longer the cost of the charger is three times lower. The cost / duration ratios are close.

The cost of 13,888 superchargers of 350 kW per unit (4.8 G W) is about 7 billion Euros, that is to say 218 Euros per car at the scale of 32 million vehicles in the French fleet. The 4.8 G W superchargers can also be coupled with 4.8 GW of stationary heat pumps, thus saving money in the electricity grid. 4.8 G W stationary PAC versus 114 G W PAC embedded … Factor 24. “Historically, a new energy vector has always begun to prevail in stationary uses before those of mobility for issues of weight, autonomy, reliability, safety, etc. “Explained Nettie Beaker, France Strategy expert, on September 22, 2015 in the context of an interview for a media  of the Energy Regulatory Commission.

What is the cost of a million fuel cells (114 G W) to equip a million Toyota Maria? 3648 G W of PAC to equip 32 million? And how much are 32 million associated hydrogen tanks to withstand 700 bar pressure? Air Liquid (c H 2 range) : “In a few years hydrogen cars and electric battery cars will be like diesel cars and gasoline cars today,” said Dr. Mutsuhito Hi rose, Fuel Cell and Hydrogen Engineer at Toyota . Do you agree with him? “

Answer: Is the comparison relevant? Gasoline and diesel must both be eliminated in a zero emission perspective that Air Liquid calls for. In the name of openness to innovation must we accept the corn ethanol thermal cars while their efficiency Sun-to-Wheel is 180 times lower than that of electric cars battery powered by photo voltaic panels? Certainly hydrogen cars are “only” 3 times less efficient and not 180. The question becomes: where to place the slider of tolerance in terms of efficiency? Can people fighting waste be treated as “green Khmer”?

“There’s a competition between batteries and hydrogen fuel cells, we’ll see who wins,” said Bertrand Pic card, founder of the “Global Alliance for Cost-Effective Solutions” (formerly known as “Global Technology Alliance”). “), at the microphone of Patrick Cohen on France-Inter on the occasion of the publication of the book” Objectify Sole “retracing the Solar Impulse adventure.

For its part Leon Musk, thanks to hydrogen, has just successfully launched a Falcon 9 (Space) rocket from the Kennedy Space Center in Cape Canaveral, with successful recovery of the lower level. This does not prevent it from declaring that hydrogen cars, given their mediocre efficiency, are “absurd” (“Silly”) and that they are clearly only “a marketing thing”, a way of strengthens the “corporate value” of the groups concerned. Hydrogen indeed enjoys a good image with the general public unfortunately not enough informed about the issues of efficiency.

The multi-billionaire American had even said about hydrogen cars: “so bullshit! “. Toyota responded with a video showing that hydrogen vehicles can be powered by bull or bison dung: “Fueled by bullshit “. The methane obtained from the fermentation can indeed be used to produce dehydrogenate by reforming. Today 95% of the hydrogen consumed in the world comes from reforming fossil-based methane, not bio me thane. Steam reforming hydrogen is used in particular in the production of ammonia which alone is responsible for more than 1% of global emissions of carbon dioxide, a greenhouse gas.

The battle between the two CEO s, that of Toyota and Tesla continues. Big Oil versus Silicon Valley. According to legend the teenager David won against the giant Philistine Goliath. This is thanks to a very efficient technology, a sling, and its ability to use it in a skillful way. The electric propulsion chain of the Tesla car coupled with superchargers is a sling of modern times. 

A vehicle that takes the appearance of a rocket: the Tesla Model S P 100 D from 0 to 100 km / h in 2.3 seconds. Against 9 seconds for the Toyota Maria. The Japanese group has just recalled the entirety of the 2800 units sold in the world in three years, this following a problem of electronic control of the fuel cell. “Some people do not like change, but we have to embrace change if the alternative is disaster,  ” said Leon Musk. More than 700,000 battery electric vehicles were sold worldwide in 2016, half of them in China. According to The Economist this wave will grow very quickly.

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