The future of electric cars for practical transportation relies to some degree on the future of DC fast charging, and how it develops over the next decade.
As in other spheres of electrifying transport, Tesla Motors has pointed the way to one vision of the future with its expanding network of Supercharger fast-charging sites.
But Tesla's network is only usable by Tesla cars.
The two standards for fast charging used by every other electric car are CHAdeMO (used by Nissan, Mitsubishi, and Kia) and the Combined Charging System, or CCS, protocol (used by all U.S. makers, except Tesla, and all German makers).
And Porsche, among others, has some definite ideas on how the CCS standard should evolve beyond its current 50-kilowatt limit.
The participants in the Society of Automotive Engineers working group for an upgraded version of CCS have already indicated their goal is to take it to 150 kw, in line with the current Supercharger at 145 kw.
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