ELECTRIC VEHICLES HOME VS PUBLIC FAST AND RAPID CHARGING:
Consider two EV drivers – both with identical EVs, except one can charge at home and the other cannot.
Both use the same vehicle with same size battery and efficiency – both drive exactly the same number of miles per year…
The lucky one with access to a domestic chargepoint paying based on the mixed energy tariffs previously outlined and averaging 220 miles a day 6 days a week over 48 weeks would pay energy @£7.80 daily – that’s £46.80 per week or £2,246 per year – and this is achieved with the convenience of charging at home, while sleeping...
The unlucky one has three options:
1. Fast Street Charging - Dependent on convenience of charger locations and availability and charging at the same speed as home @7kWh. Costing c.£0.25p per kWh – (Assuming they can find an available, convenient street charger 6 nights a week??) -
This would work out costing around £16.00 to top up enough for over a 200-mile shift – Averaging 220 miles a day 6 days a week @£16 per day over 48 weeks with energy @ £96 per week or £4,608 per year over double the cost of private home charging. As it currently stands this option is highly unlikely due to patchy numbers of street chargers from borough to borough and an almost total lack of these in most suburbs. This is one of the areas of charging infrastructure that is due to undergo a huge expansion up to 2030... More on that in another article...
2. Rapid DC Public Charging – The more likely option to fast street charging - is to use rapid DC chargers which also means downloading a plethora of ChargePoint operator (CPO) apps to either access some of the networks (some of which may also require a subscription) and planning where suitable rapid chargers are – convenient to needs – while hoping they’re available at those times needed – Costing typically c.£0.40p per /kWh.
Rapid chargers vary in speed from 50kWh up to 350kWh but around 85% of the public network are still 50kWh, besides which, many EVs are still only capable of rapid charging up to 100kWh.
50kWh chargers typically add around 100 miles range in around 35 minutes - This is dependent on the size of the EV battery however, because to fully charge takes longer than expected – due to batteries requiring a ramp-up in speed up to 20% charge - and a ramp-down in speed from 80% to full.
DECEMBER 2021
Using rapid public DC infrastructure as the means to recharge will also mean factoring in dwell-time out of each day but in comparison the cost to enable an EV for over 200 miles range is going to be over double that of fast street charging… So Averaging 220 miles a day 6 days a week over 48 weeks with daily energy @£0.40p per kWh that’s £150 per week or £7,200 per year. As it stands for Taxi and PH drivers, this is very much the more likely option using public infrastructure.
3. Workplace / Depot Charging. For companies that have depots with adequate parking space then workplace charging creates more flexible options and the ability to plan a strategy to maximise vehicle usage and minimise energy costs. Fleet management going forward is increasingly energy management.
The options available for charging at work allows fleets to create innovative business models. With a mixture of 7-22kWh AC chargers and / or rapid DC.
This infrastructure can also be supplemented by decentralised renewable energy such as solar, with additional off-grid power generation and battery storage. This democratises energy and affords a number of complex but exciting opportunities to explore regarding vehicle choices, operations, energy deployment, charging infrastructure and various attractive financed packages.
The need for companies to plan implementation of their own charging infrastructure is now here. The strategies to implement this can create new and more profitable business models and present some with excellent opportunities to capitalise on the transition and decarbonisation of both power and mobility.
To enable a fluid, structured transition to EVs requires a new skill set from fleet owners and managers who need to be well- informed, trained, & resourced.
The risks of making the wrong decisions are huge and impact the bottom-line profits of your company & even your position in the market vs competitors.
This is where our services help you, we provide independent EV consultancy, encompassing end-end solutions and EV ChargePoint and connected renewable installations to help your business THRIVE during the transition to EVs.
Article supplied by Tim Scrafton
THE CONNECT CONSULTANCY CONSULT
DESIGN SUPPLY INSTALL
The UK’s leading independent electric vehicle infrastructure consultancy 0161 635 6553
hello@theconnectconsultancy.com
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