One million electric cars would increase German power consumption by only 0.35 percent

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One million electric cars would increase German power consumption by only 0.35 percent-german

An ever-led argument of electric car opponents is the claim that the electricity vehicles would take the German electricity grid too much and in the worst case would even be paralyzed. A thesis that has been refuted several times is available more than enough energy to electrify all cars: One million electric cars would increase power consumption by only 0.35 percent, such a current report at company, in which several energy experts come to speak.

The invoice was based on the typical driving profile of an average car. Is called: 12.500 kilometers per year, energy consumption 15 kWh to 100 kilometers, makes an annual consumption of 1875 kilowatt hours.

Even the complete conversion of all German cars – at least more than 40 million pieces – on electric drive would lead to no energy bottlenecks, even if they are supplied exclusively with electricity from renewable energy sources, such an official document of the Federal Environment Ministry: “There are far enough renewable energies to electrify the entire German car fleet, “it says there. Large energy companies like Eon and Innogy share this opinion.

However, not “the energy quantity of the expected electric vehicles the critical size”, as Innogy says. Problems could come, a large number of electric cars should be connected at the same time on the electricity grid at the same time, for example at 6 pm, when people come home from work on how to consider a study of the consulting company Oliver-Wyman: with a local network size of 120 Households would already be sufficient for 36 electric cars, “to overload the network locally,” it says.

“The problem that people all invite at the same time, almost does not occur in reality”

However, this extreme scenario barely realistic, like company car.DE researched: “The charger hythus of the inhabitants is so different that we did not yet come close to a bottleneck situation. Of the ten electric cars, a maximum of five went to the net at the same time – without we influenced that, “said about Christian Bott, who heads an e-auto project for ENBW in Eastfildern. The same was shown a further project of the energy supplier Allgau overland a few years ago: “The problem that people invite all at the same time, almost does not occur in reality,” said project manager Robert Koberle.

Nevertheless, one must admit that there is a theoretical possibility that networks could be overloaded in part when 80 or 90 percent of cars are electrically in Germany. But this too can be influenced or. Prevent without any costly network expansion: by loading the electric cars intelligently and flexibly, how even the critical Oliver-Wyman study admits.

This “backup” could be supported by the construction of local energy storage, as it has tested networks BW in Ostfildern. But the expansion of the network will continue to be examined as an option. “The royal road is not found yet”, sums up company car.DE, but it is definitely fixed: “For the network operators, there is still a lot to do on the way to the e-auto-age”.

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6 thoughts on “One million electric cars would increase German power consumption by only 0.35 percent”

  1. To do this, a report from the Norwegian E-Auto Association (translated) … which underscores this:
    “Myths” for E cars: More e-cars mean a huge burden of electricity grid
    (In this article series tries «Elbil.No »to refute the different myths)
    Claim: The strong increase in the E cars in the car park means a strong load on the network and will make a removal of the network necessary
    Not correct! Even if the Norwegian E-Auto stock will be many times today, this will only lead to a modest increase in power consumption that the network can be handled without significant problems.
    Calculations of NVE (the Norwegian Water and Energy Agency) show that the power grid in 2030 electricity for 1.5 million. E-cars can deliver. This includes an increase in power consumption by 3% or 4 TWh.
    However, there can be challenges in some places that will require upgrades.
    This is especially true for places with limited network capacity, so z. B. Regions where there are many huts.
    An essential reason why NVE says the net creates that is that a large part of the store happens at night.

  2. Nothing for bad, but 1875 kWh per year are rather little. 3000 kWh I find more realistic.
    Power for 1 million 3 TWh.
    For 40 million you are 120 TWh. Ui.
    With an alternative? Complete sector coupling will double the power consumption or more triple.
    Nothing changes on the mechanical or heat emergence. Where should the whole stream !regenerative! and come under basic? money? Then rather an efficient, low-wing diesel.
    What is actually electrical performance? P = U × I, everyone knows. Electrons work in the consumer against opposition. In the generator, however, a counter torque against the electric field must be applied for the charge separation, the physics can not be overlap.
    So: 2 × pi × m × n = u × i
    Electricity is ingenious power transfer, but no primary energy supply.

    Physical greetings
    Citaro fan

  3. The stream will in future come from hydropower, wind turbines and solar roofs.
    Of course, the storage has to grow a lot. Especially from the summer on the winter. There are still work for the technology. Low-speed diesel with hybrid system will be seen in agriculture and truck s on the street for a while.

  4. There are motor vehicles, power of wind energy, power from photovoltaics. Electric Power ……..

    Even if that sees the physicism differently.

  5. 0.35% sounds so little.
    If only the car traffic is to be switched to electricity, this means an increase in power consumption of 14%.
    Should 7 AKWS be built after your idea or prefer 10.000 other wind turbines shape the landscape ?
    In addition, their assumptions are beautifully calculated and do not comply with the statistical average value for consumption and mileage.
    In addition, the truck traffic comes with mind. 27 TWh still.

  6. Co-commentators / readers who do not come from the electrical / electronics should retire here in the discussion or. Silence: You can not express yourself about facts because you lack the expertise! But they can count on! Once ..
    Germany can stand 2020 approx. 100 gw / h (gigawatt hours) a day with the current topology and type of power generation (mostly conventional so atom, coal, gas, flow water, etc.! Atomic and coal will soon disappear green-left phantases and then good night Germany: It will be dark and industrial arm) produce and distribute. Let us stay with the E-cars with their 17.6 kW / h consumption and 8 hours. At the house net (which is a joke, since the low-voltage electricity grids / household power networks are not designed for this. The power cables are not designed for the more electricity and the required amount of electricity is currently not available. Not even in the near future and certainly not in case of elimination of atom and coal. It always comes the milkmaid bill from the burner cars that are not all at the same time.
    It is not about the process of refueling, but therefore the required L Eggs in the form of gasoline / diesel is in stock and is brought out of the ground in unimaginable amounts (sometimes apart from the combustion tank operation in 4-5 minutes is usually completed What will remain the same for the next decades due to the technology of e-cars), the additionally needed electrical power for the Splen Energiewende / E-Mobility / Industrial Revolution 4.0 but not even starting in the pipe is ..
    Once we expect dreamy: it does not remain with the 1 million, but analogous to the burners alone for Germany 45 million. E-cars needed (where are all the raw materials come from? What will happen with the waste, which must be released with the CO² that is released for production?). Let’s expect: 45 million. E-cars times min. 17.6 kW / h a day (without vacation, without frequent riders, without truck and and and) So: 45.000.000 times
    17.6 kW / h are Schlapp 792 GW / h required electrical energy, which is currently not available for decades / centuries / millennia, not even planned! Through the extreme volatility of wind / pv power generation, we have already caused massive problems the power mains fluctuations caused by wind / PV electricity (because either too much is generated and pressed into the grid for a lot of money to the customers abroad or it dark is / no wind blows or just a cloud stands in front of the sun or or …) off! The number of necessary interventions for regulation of network stability has become more than twenty energy transfers since the unnecessary and energy price. Doll becomes it when the last AKW goes from the net and the coal is no longer there: then a cloud is sufficient in front of the sun or a persistent dark fleaness to stop the lights long lasting.


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