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Random EV thoughts.....

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Comments

  • Registered Users, Registered Users 2 Posts: 10,032 ✭✭✭✭CoBo55


    Any other Tesla chargers available to the plebs? I downloaded the app just to have it😏



  • Registered Users, Registered Users 2 Posts: 13,409 ✭✭✭✭prawnsambo




  • Registered Users, Registered Users 2 Posts: 16,179 ✭✭✭✭AndyBoBandy


    in Ireland only Athenry & Enfield…

    But a sh1t ton of them on the continent are open.



  • Registered Users, Registered Users 2 Posts: 13,003 ✭✭✭✭the_amazing_raisin


    I think a bunch more were originally going to be opened (something like 6) but it got scaled back to 2 sites for now

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



  • Registered Users, Registered Users 2 Posts: 2,207 ✭✭✭innrain


    If you head to Supercharger thread you'll learn that they've just opened Cork and Tralee on top of the 2 mentioned above. I imagine once Sandyford gets its 4 V4 on the top of current 4 V3 will be opened as well.



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  • Registered Users, Registered Users 2 Posts: 16,179 ✭✭✭✭AndyBoBandy


    Well…

    IMG_2960.jpeg

    Tralee & Mahon Point, Cork are also now open to all……



  • Registered Users, Registered Users 2 Posts: 16,179 ✭✭✭✭AndyBoBandy


    Tralee & Cork now also



  • Registered Users, Registered Users 2 Posts: 7,958 ✭✭✭munchkin_utd


    just on tesla, they have this nifty way of installing new superchargers as a prefabricated array in just 3 or 4 days, basically 4 chargers and a transformer that come as a unit on a concrete slab that "only" needs to be connected to the local grid once installed.

    https://x.com/TeslaCharging/status/1777395990766432596



  • Registered Users, Registered Users 2 Posts: 10,032 ✭✭✭✭CoBo55


    Other CP operators are starting to use this model, substation in a box, similar to the fttc rollout that eir did.



  • Registered Users, Registered Users 2 Posts: 12,001 ✭✭✭✭tom1ie


    Problem is the grid needs to be able to supply what the Tesla chargers can supply.
    That could mean a lot of upgrading of the local and transmission network.



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  • Registered Users, Registered Users 2 Posts: 6,109 ✭✭✭TheMilkyPirate


    What's with the high pitched ringing from the ecars chargers it would drive you mad



  • Registered Users, Registered Users 2 Posts: 13,003 ✭✭✭✭the_amazing_raisin


    Was about to say the same thing, typically the grid connection seems to take a long time

    Having said that, it's usually the CPOs telling us that and it's a pretty handy way for them to wriggle out of commitments

    No-one from ESBN has said anything about delays to grid connections AFAIK

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



  • Registered Users, Registered Users 2 Posts: 13,003 ✭✭✭✭the_amazing_raisin


    They must have heard me 😂

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



  • Registered Users, Registered Users 2 Posts: 16,179 ✭✭✭✭AndyBoBandy


    I came across these modular twin charger units on a skid in Germany last year…. they'd added 2 of these skids to the existing (fixed) superchargers at the site…

    IMG_8404.jpeg IMG_8405.jpeg

    there was also a sign saying sessions were limited to 40 minutes, so it was obviously a busy site!!



  • Registered Users, Registered Users 2 Posts: 7,958 ✭✭✭munchkin_utd


    thats true, but maybe when waiting for the next decade or 2 for electricity and grid companies (in no rush in the slightest it sometimes seems) to upgrade lines to where they are needed for superchargers in prime locations, modules could be installed semi-temporarily in nearby industrial areas or beside substations until the real long term locations finally eventually (if ever) are actually properly served by enough power.

    And a slight tangent but grid capacity or the will to install chargers en-masse isnt the only issue in getting chargers installed.

    In Munich there has been no progress on increasing the number of standard public chargers in the past 3 years because the lucrative contract for an extra 2700 chargers in the city tendered as one batch was held up in court by legal procedural challenges by loosing bidders. This week they (the socialist/green party local government) decided to retender for 1300 chargers in 8 batches/ districts in the hope that maybe the charger installers might stop squabbling and stop blocking the installation of chargers.

    You couldnt make it up, the greens and the charger installers who are in the business of getting us all to switch away to evs cant get in the infrastructure necessary to make the switch possible/ attractive



  • Moderators, Motoring & Transport Moderators, Regional East Moderators Posts: 8,262 Mod ✭✭✭✭liamog


    You tend to find chargers are located close to existing grid capacity. There's a reasonably good map of available capacity available https://www.esbnetworks.ie/new-connections/generator-connections-group/availability-capacity-map

    Most of our electrical infrastructure follows the major roads so it shouldn't be too challenging connecting high power motorway sites. The UK had problems with some more remote service stations being far from large grid connections so have started a programme of bringing gird connections to the service areas.



  • Registered Users, Registered Users 2 Posts: 16,179 ✭✭✭✭AndyBoBandy


    Tesla said that they will be trialling MegaPacks for SuC sites in the U.K. that are supply limited, so you have a 3.9MWh pack thats fed by a standard 50kW connection (or higher/whatever's available), but is capable of running a couple of superchargers pretty much full time for about a day before the battery starts getting low, and its always being topped up at 50kW+ whenever the SuC's are unoccupied…

    They said if they work out well in the U.K., they could be an option for Ireland… but they also said they wouldn't be opening Mahon Point at the same meeting…. so it doesn't matter what they say as they do as they please…



  • Registered Users, Registered Users 2 Posts: 12,001 ✭✭✭✭tom1ie


    Yes but it’s not just the bit of transmission line you see running beside the road that needs upgrading- it’s the MV substation upstream, the 38kv station upstream and associated network to feed that 38KV to be upgraded etc, for example.

    Post edited by tom1ie on


  • Moderators, Motoring & Transport Moderators, Regional East Moderators Posts: 8,262 Mod ✭✭✭✭liamog


    Take the example of Carrickmines which will soon see a 4x200kW charging station open. The local MV station in Carrickmines has a demand capacity available of 327.7MVA according to the capacity map I shared. I don't think Eirgrid are going to worry too much about connecting equipment that uses about 0.2% of the available capacity.



  • Registered Users, Registered Users 2 Posts: 12,001 ✭✭✭✭tom1ie


    That’s an example of where there is plenty of capacity.
    Now go to an area on an inter urban motorway where the grid is under constraints and see what would be required to get a Tesla supercharger bank installed.
    It’s not as easy as you are suggesting.



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  • Moderators, Motoring & Transport Moderators, Regional East Moderators Posts: 8,262 Mod ✭✭✭✭liamog


    This started from me saying they tend to install chargers where there's available capacity, it's one of the key selection criteria that comes into charger sites.

    Are you suggesting that because there are locations which don't have available capacity it's difficult to install chargers where there is?

    It's no coincidence that Cashel has a future supercharger planned and there is available capacity on the grid in the area.



  • Registered Users, Registered Users 2 Posts: 12,001 ✭✭✭✭tom1ie


    😂 wow.
    Im suggesting it’s not as easy as just plonking a big supercharger bank nor even a dc fast charger anywhere and everywhere as there are grid constraints which limit this.
    Two different posters noted that was a good point yet it seems to have upset you for some reason?



  • Moderators, Motoring & Transport Moderators, Regional East Moderators Posts: 8,262 Mod ✭✭✭✭liamog


    I think people believe that grid connections for chargers are much higher than what is essentially standard roll outs of grid infrastructure. The "challenge" that people throw up is massively overwrought, and something that grid operators have said isn't much of a concern.

    We don't panic about a grid connection for a new housing estate of 25 houses, why would we do the same for deploying a couple of 200kW DC chargers at petrol stations. The local grid design demands are largely the same.



  • Registered Users, Registered Users 2 Posts: 12,001 ✭✭✭✭tom1ie


    A new housing estate of 25 houses is generally going up in an urban setting where there is capacity on the local grid.
    If you built a housing estate of 25 houses on the side of a motorway where the only infrastructure is a single phase tail fed MV line, then you would have issues with the supply to the 25 houses.
    Therefore you have to upgrade the grid.

    Same with Tesla banks of SC’s on the side of a motorway- if they’ve the potential to draw a high load- even only for a short period of time then the grid has to be able to supply it, therefore that single phase MV line may have to be upgraded and possibly the MV/38kv station upstream also.



  • Registered Users, Registered Users 2 Posts: 14,741 ✭✭✭✭josip


    So what kind of chargers could be installed at the Cliffs Of Moher car park without having to upgrade the lines/substation ?



  • Registered Users, Registered Users 2 Posts: 13,003 ✭✭✭✭the_amazing_raisin


    It's Germany, pretty much every government contract ends up in court

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



  • Registered Users, Registered Users 2 Posts: 13,003 ✭✭✭✭the_amazing_raisin


    The transmission line is probably as big a hassle as the transformer upgrades when needed

    ESBN charge per meter for this and they don't work cheap. I worked out to upgrade my house connection to 3 phase would cost something like €2000 in trenching fees alone. For around 300m of trench

    Then you need planning permission if additional electrical poles are required, and landowner permission if crossing someone's land, etc.

    Lot of potential hold ups in all of that

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



  • Registered Users, Registered Users 2 Posts: 13,003 ✭✭✭✭the_amazing_raisin


    One connected to a wind turbine, never worry about running out of power down there 🤣

    Jokes aside, a lot of smaller businesses seem to be able to support at least one 50kW charger onsite without a grid upgrade

    Obviously that isn't going to stretch very far, so one of those battery backed chargers would be perfect for a site like that

    This is a good example

    https://www.elli.eco/en/b2b/charging-hardware/flexpole-fast-charger

    It has a 160kWh useable battery onboard, so you can charge it off a 3 phase connection overnight and it'll boost that with the battery while charging a car

    One handy thing is they don't need to be permanently fixed to the site, you could put 6 of them there for a busy weekend then lift them onto a truck and bring them somewhere else they're needed

    Or just go overboard and roll this thing into the car park

    https://www.porsche.com/stories/mobility/how-does-a-mobile-charging-trailer-for-evs-work

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



  • Registered Users, Registered Users 2 Posts: 7,317 ✭✭✭zg3409


    BP pulse chargers in NI have a big battery inside. One issue they seem to have is they go offline unable to charge when battery is low, which they should not need to do. They should be able to just reduce the speed to the car. Lots have been installed in the past 12 months.



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  • Registered Users, Registered Users 2 Posts: 13,003 ✭✭✭✭the_amazing_raisin


    Were they the flex pole charger I posted above? Can't remember if they're the same model or different

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



This discussion has been closed.
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