Showing posts with label EV. Show all posts
Showing posts with label EV. Show all posts

Sunday, March 26, 2023

EV Ownership: Divided by a Common Language (US vs UK)

Before I go into ownership experience and costs, I thought it would be helpful to lay some groundwork for terminology.

Browsing facebook, forums, youtube, twitter, etc. one begins to see that there is a general confusion between people who DO understand the subject matter, simply because they live in different countries. I want to address this before diving into helping those who have no background in EVs understand the concepts and to provide a reference generally.

The biggest points of confusion? What is 'fast charging' and what do we call various levels (or speeds) or AC charging. 

Additionally, it's worth pointing out that in North America, all chargers come WITH a tethered cable. In Europe, AC chargers may come with or without, leading to tethered (with cable) and untethered (without cable, bring your own) options. DC charging in Europe always has the cable tethered to the charger, same as in North America.

Here's a handy chart that I've created as a basic explanation. The specifics do vary slightly by country.


I've also ignored Tesla entirely: for the simple reason that they aren't consistent globally and are an exception to the rest of the industry. Tesla use a proprietary plug in North America, but use a modified Type 2 plug on older vehicles in Europe, shifting to CCS2 for newer Model 3/7 vehicles. As a result, there are 3 different types of plugs that Tesla may use for AC or DC charging and there may be more than one implementation within a market. Furthermore Tesla use a single wire can (SWCAN) communication protocol, rather than J1772, CHAdeMO, or CCS (Homeplug Green Phy, aka Powerline Ethernet), although their AC chargers can (if configured correctly) fall back onto J1772.

So let's get started here: portable charging:

North America

  • 120 volts AC 60 hz
  • 8-15 amps
  • up to 2 kW
  • This cable probably came with your car and can be plugged into an ordinary wall socket/receptacle. 
  • J1772 connector (Type 1)
  • Known as 'Level 1' 

United Kingdom

  • 230 volts AC +/- 15% (realistically 240-245v) 50 hz 
  •  8-10 amps (if you use a wall socket at 13 amps, prepare to melt your plug)
  • 1.8-3 kW
  • Connector
    • Usually Type 2 Connector (with equivalent to J1772 signalling)
    • Sometimes J1772 connector (Type 1)
  • Known as a 'Granny Cable'
You'll notice that using a granny cable in the UK is not dissimilar from Level 2 speeds in North America. That's why there is a continual debate as to whether or not people should just charge off a wall socket for convenience and cost, or if a dedicated hard-wired charger is a safety requirement.

Moving on to AC charging with fixed, wall or post mounted chargers:

North America

  • 220 volts 60 hz
  • 16-80 amps
  • Single phase
  • J1772 connector (Type 1)
  • 3-20 kW
  • Known as 'Level 2'

United Kingdom 

AC charging in the UK is more complicated, because several vehicles can use 3-phase charging. This includes Tesla, Renault, Vauxhaul, etc. When this happens, more power can be delivered with lower amps, which is why when we get to our higher speed charging, there will be an AC option alongside DC.

  •  230 volts AC +/- 15% (realistically 240-245v) 50 hz
  • 16-32 amps (it's unusual to have a considerably higher amp rating... usually 11kW+ is 3 phase)
  • Single or Three Phase AC
  • Connector
    • Usually Type 2 Connector (with equivalent to J1772 signalling)
    • Sometimes J1772 connector (Type 1)
  • Known as 'Slow Charging' if less than 6 kW (typically below 25 amps), 'Fast charging if 7kW or faster (26-32 kW)
The fastest, most rapid charging speeds:

North America

  • 350-1000+ volts DC
  • 25-500+ amps (can vary by standard)
  • CCS1 or CHAdeMO
  • Known as 'Fast charging', 'DCFC', 'DC Fast Charging', or 'Level 3'

United Kingdom 

There's a slight AC exception in this category, that essentially caters to 1 vehicle: Renault Zoe.

    • 230 volts AC +/- 15% (realistically 240-245v) 50 hz
    • Three phase
    • 64 amps
    • 43 kW
    • Type-2 Connector
    • Known as 'Rapid AC Charging'
    Most people would use a DC option, however!
    • 350-1000+ volts DC
    • 25-500+ amps (can vary by standard)
    • CCS2 or CHAdeMO
    • Known as 'Rapid Charging', 'Ultra Rapid Charging' (if over 100kW), 'DC charging'

    Bonus terms!
    • A place to stop at the side of a motorway or highway
      • North America: Rest Stop
      • United Kingdom: Motorway Services Area (MSA)
    • A physical brake to keep car from moving when parked
      • North America: Emergency Brake
      • United Kingdom: Hand Brake

    Tuesday, February 7, 2023

    Logic and the Path to Electrification

    April 2022, Using Tesla Public Supercharger Pilot Programme in France

    Something I’ve realised over the years is that people do not actually apply logic in their daily lives. We are typically too busy to consider the full ramifications of each habit and it becomes simpler just to accept that the way we’ve grown accustomed to doing things as individuals or any other level such as society as a whole must just be normal.

    Periodically, someone will come and challenge the status quo and offer a different view. This will usually trigger a whole bunch of hand flailing and complaints that the world is being ruined. Conversely, another group may realise our habits and therefore our inaction may be ruining the continued existence of our world.


    What usually then happens is that people fall into tribal factions, where the concept of using logic is short-circuited by the efficiency of just confirming what the peers in their group also think, which is often set by vested interests, rather than based an actual net benefit to the community.


    In order to further prevent change, conspiracy theories then begin to proliferate. Disinformation campaigns, even completely astroturfing campaigns arise, where paid imaginary people influence laws and public consciousness, either in town halls and legislative arenas or simply on your personal social media, such as Facebook or twitter.


    Some issues are understandably difficult to determine where the facts lie, when the concepts underlying them cannot be broken down and misleading information is propagated. For example: it’s difficult to convince people as to how the climate is changing and assuming it is, whether or not any human activity could change that.


    What to me is less difficult to understand is the direct impact on the air and water that we breathe from pollution. Additionally, the costs we pay for things like fuel can actually be calculated. These are not up for debate, but most people actually have zero idea how much anything costs until they see a monolithic bill come in the mail.


    Right now, I believe we are at a golden moment of opportunity for moving away from fossil fuels, something consumers and investors both stand to benefit from. The only downsides are if you’ve invested heavily in fossil fuel industries.


    My decade-old EV charging in Belgium, driven from London


    I’ll be discussing my love of electric vehicles here in more detail later, I’ll explain what it’s like to own an EV, what it’s like to own an EV that’s even over 10 years old. If you’ve only read things in tabloids or seen a bunch of worrisome items, where you think, ‘that sounds right, did anyone think of x’, don’t worry—there’s probably an answer for it.

    There are some people who will not benefit financially from an EV for now, but I would argue that’s an increasingly smaller minority of people, when you start objectively looking at the data for the air we breathe and the wallet in your pocket. 


    You don’t even need to care whether or not the ocean might rise, everyone can understand getting asthma or seeing the Gulf of Mexico covered in crude oil are bad things. Saving hundreds or thousands a year in your bank account is also something that most people would objectively like as well. And if you’ve seen recent articles suggesting you won’t save money? Don’t worry, we’ll discuss that too!