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Guide to EV workplace charging

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22 April 2015

EV workplace charging
Workplace charging will soon become a serious issue if the take-up of electric vehicles continues to gain momentum

EV workplace charging – did you know?

  • One charging unit can charge two vehicles
  • Plug-in Electric Hybrid Vehicles (PHEVs) need workplace charging units
  • Range Extenders (REX) also need access to charger at the workplace

WITH more and more businesses and company car drivers choosing plug-in vehicles, the pressure is mounting for employers to offer charging options at the workplace.

Instead of viewing EV workplace charging as an inconvenience, smart companies are seeing this as a cost-effective chance to aid PR and improve employee’s perks; the latter helps to attract and retain talent and keep its workforce happy.

In addition, if electric cars or plug-in hybrids are offered as a viable option for employees, costs are kept down in the fuel department and the negative environmental impact of company vehicles is lessened.

Electric vehicle plug-in charging options

Firstly, it is important to consider the charge rates when looking at options.

Electric charge rates

Slow charging unit

  • Up to 3.7kw single phase 16 amp supply
  • Charge time: 6-8 hours depending on battery size
  • Most vehicles will be able to charge at this charge rate
  • The most economical way to charge

Fast charging unit

  • Up to 7kw single phase 32 amp supply or 22kw for three phase supplies
  • This higher charge rate reduces a vehicles charge rate to half that of a slow charge with a full charge being complete in 3-4 hours
  • Although not all vehicles can charge at this higher rate, they can be connected to them and they will charge at a lower rate

Rapid charging unit

  • Up to 50kw dc or 44kw ac
  • At these higher rates of power a vehicle can be charged to 80% within 30 minutes
  • These units are the most expensive to install and can often require network upgrades by the local electricity board
  • Taxi, delivery and other high-mileage companies reduce down time on their vehicles and make ‘going electric’ a possibility

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