SGTE POWER - Designer of the first DC quick charger since 1995

  •  Power conversion specialist
  •  Located in LE MANS since 1962
  •  Subsidiary of COMECA, a strong leadership in France and a worldwide player in the field of Low Voltage systems integration
  •  66 employees
  •  SGTE-POWER has developed a partnership with MARUBENI Corporation to export its EV Quick Chargers. These chargers have been certified by TEPCO and are compliant with CHAdeMO’s association specifications for 50 kW DC quick charge.



Homologations : CHAdeMO




Remote communication /
Maintenance by gsm /

Customized design

Pre-equiped for customer’s
payment systems




Informations to the user by
touch-sensitive screen

Yazaki connector for
CHAdeMO vehicules

Power 50 kW
Innovation and technology
High efficiency and reliability
Low harmonic distortion





Quick-charging – the fruit of four years’ intensive testing

Four years of field trials have demonstrated that the lack of quick-charge stations discouraged the use of Electric Vehicles (EVs). Wary of running out of power or of being immobilized for several hours en route, drivers made sure they arrived at their destinations well before reaching the maximum limit of their battery range. On the other hand, in areas where quick-charge stations were available, drivers averaged four times as many miles! On the basis of these facts, the principal players in the car ecosystem worked together to produce an EV quick-charging standard which they called CHAdeMO (the abbreviation of Charge and Move). This standard, adopted on 15th March 2010, was developed jointly by the members of the CHAdeMO Association, the Association boasts more than 300 member companies including many carmakers and energy suppliers.


The quick-charge station

With a typical capacity of 50 kilowatts, the CHAdeMO stations are generally used for less than five minutes1 per visit, a quick stop which equates to the time drivers are accustomed to spend filling up their cars in conventional service stations. Enough for 30-40 kilometres of extra range to be sure of reaching their destination, where they will slow-charge the vehicle. The additional battery range thus obtained is ideal for the urban setting which represents EVs’ best market.

Quick-charge stations thus provide a safety net, enabling EV drivers to use their vehicles freely without fear of running out of power en route.

This year European manufacturers will commence production of quick-charge stations to CHAdeMO’s specifications. Moreover, their commercial operation can be taken care of by local companies in each country; in Portugal the government has already set up such an operating consortium.


A Win-Win solution for EVs and infrastructure providers

The CHAdeMO system offers benefits for all parties in this particular ecosystem. Car manufacturers can adopt the CHAdeMO standard at very little cost, since EV batteries can be charged directly with almost no additional equipment requirement. Manufacturers can therefore price their EVs more competitively, and concentrate their resources on the development of the vehicles themselves.

Global infrastructure costs incurred are minimal. EV users slowcharge their batteries at home at night, or at their places or work by day. Since the batteries have enough range to cover virtually any whole day’s driving distance, it makes better sense for a public charge network to concentrate its resources on a few quick-charging points. This reduces public infrastructure costs compared with setting up a dense network of slow-charge points, which in any case would not be used, because drivers would find the slow-charge waiting time unacceptable.

Power network operators can deploy the CHAdeMO charging points as a protection against electrical perturbation caused by fast charging, since chargers integrate voluminous safety devices that cannot be mounted in the cars.


250 stations already installed

EVs produced by all the current members of the Association can already be connected to this shared quick-charge infrastructure; some 250 stations have already been installed, and there are ambitious plans for many more, in Japan and elsewhere, within a few months of the appearance of the first compatible EVs on the market.

The CHAdeMO standard is available to all. Any EV manufacturer who wishes to make use of this readily available, conomical and reliable system may adhere to the standard.

1 20 to 30 minutes’ charging is enough to reach 80% of maximum battery range.

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