Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Please note that it is not permitted to have referral links posted in your signature. Keep these links contained in the appropriate forum. Thank you.

https://www.boards.ie/discussion/2055940817/signature-rules

Random EV thoughts.....

1230231233235236421

Comments

  • Moderators, Sports Moderators Posts: 19,822 Mod ✭✭✭✭slave1


    Did you see the Hummer EV reviews, 210kWh battery!!!!!!!!!



  • Posts: 0 [Deleted User]


    4 hours charging time when you arrive in Lahinch with a low battery :-)



  • Registered Users, Registered Users 2 Posts: 23,103 ✭✭✭✭ELM327


    Yes but it's useless because of the shocking inefficiency.



  • Registered Users, Registered Users 2 Posts: 4,111 ✭✭✭wassie


    This report (which itself refers to the Inside EV report) has it at 1.6 miles/kWh or 38.9 kWh/100km.



  • Registered Users, Registered Users 2 Posts: 1,824 ✭✭✭mailforkev


    That Hummer really is a shocking waste of the Earth’s resources. They’re selling on the grey market for twice the actual price too.



  • Advertisement
  • Registered Users, Registered Users 2 Posts: 23,103 ✭✭✭✭ELM327


    I'd love one btw but way too expensive for me even forgetting taxes on import.



  • Registered Users, Registered Users 2 Posts: 372 ✭✭pjdarcy


    Random thought that popped into my head last night...

    Firstly, let me preface this by saying that I know almost nothing about how my EV charger works (or electricity for that matter) so the following idea could be absolutely insane...

    Would it be possible to have a high speed charger at home by having a battery installed at home that could charge the battery in your EV.

    i.e. I'm thinking that it would work like this

    1. charge the home battery overnight at the usual night time charging rate and charging speed
    2. once the home battery is charged, plug the car into it and it could deliver a charging speed higher than the normal 7kWh of your home charger.

    So, am I a simpleton or a genius? (I suspect the former)



  • Registered Users, Registered Users 2 Posts: 2,575 ✭✭✭Fitz II


    The discharge rate of home batteries is not going to get you more than 7kwh, honestly you would be lucky to get 3kwh out of a system. Best just charge the car overnight and save youself all the battery loss and cost.



  • Registered Users, Registered Users 2 Posts: 372 ✭✭pjdarcy


    Dammit, I thought I was going to be the next Elon Musk there for a minute!



  • Registered Users, Registered Users 2 Posts: 9,432 ✭✭✭markpb


    FWIW some high speed chargers use a system a little like what you described. If the grid can’t supply power at a high enough rate, they trickle feed a battery when not in use. Then they use a combination of grid and battery to charge the car faster than would normally be possible.



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


    It's not technically impossible, it's well within the realms of engineering to build a static battery that could be installed at home, slow charge, and then allow you to use a DC connector to charge your car. However the costs involved would be very high. In order to allow greater charging speeds than the cars on-board charger you'd need to use DC, so would need the hardware for that, there are low power CCS chargers on the market that you could use https://www.carplug.eu/ecotap-fast-charging-station-dc-30kw-chademo-plug-charge

    You'd need a battery powerful enough to run the DC charger and a capacity high enough to hold a decent charge for the car. All-in all you're probably looking at over €20,000 for a system that has to compete with plugging in for a few extra hours. It might be useful for those couple of times a year you return home with a low state of charge and need to leave after an hour, but the majority would be better served by a proper DC charging infrastructure in their locality instead of spending so much money.



  • Registered Users, Registered Users 2 Posts: 23,103 ✭✭✭✭ELM327


    If you were running a taxi and needed to do more than the cars range a lot of the time (so the car was literally never off the road, eg one car with 2 drivers) then it would make sense. You can absolutely buy DC chargers that are 7kW when grid connected but 30-50kW if the battery for the DC charger is full.



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


    No surprise you can't buy it. While in theory sounds good it has no commercial value added to compel purchase. 7.2 kW *9 hours night tariff gives you some 64kWh or about 400km of driving range every day.



  • Registered Users, Registered Users 2 Posts: 2,018 ✭✭✭kanuseeme


    You might be lucky and have 3 phase near your property, I don't know the cost of getting a 3 phase supply, but once in you can then charge at 22 kW AC for much the same as what a 7 kW charger costs, or buy a DC charger for your 3 phase supply.

    AC will be limited by the car, I imagine DC would be limited by your pocket.



  • Registered Users, Registered Users 2 Posts: 2,575 ✭✭✭Fitz II


    Standing charges on a 3 Phase are over 100 euro a month before you use any power, 3 phase to the home install at least 10k. Not a practical solution for the average home user.

    Lots of people charge their battery system on night rate (myself included) to deal with the morning household load. Problem is cars can draw such massive ammounts of power that it will empty 10kw of batteries in a hour or less. The simple solution is just set the car to charge at night, you are using the cars battery to to the storage, introducing another battery in the middle seems unnecessary.



  • Registered Users, Registered Users 2 Posts: 3,547 ✭✭✭JohnC.


    Anything EV related in the budget? I'd only kept an eye on a couple of live-blog things rather than watching the full speech and saw no mention.



  • Registered Users, Registered Users 2 Posts: 7,315 ✭✭✭zg3409


    In USA normal homes can charge EVs at higher rates than 7kW. Even now most home chargers are 32 amp and most houses have a 60 amp supply so most homes without supply modification could supply 14kW to a car, if the charger, cable and car could handle 14kW single phase. (None can that I am aware)

    In the USA many cars can charge faster than in Ireland. In mainland Europe houses being able to charge at 22kW AC is common.

    In terms of fast charging using a battery combination the equipment exists but you are looking at 20,000 euro + maybe double this. Taxi companies ( in UK) have installed private 50kW chargers and some companies here too like an post for heavy lorries EV. There are some dedicated taxi only EV chargers here as it's determined that taxis need specific infrastructure such as at Dublin airport taxi only waiting queue.

    What is better value for money is no house battery, and using the battery in the car to supply power to house at peak price times. This already exists in ID4 but the house side equipment and software does not exist. It's likely this will be rolled out in Germany first, car to house and later car to grid to create a massive nationwide network of batteries in cars that can help the grid at peak times. As the batteries already exist there is less cost involved and the cars would tend to be plugged in at home during peak 4-7pm hours. Off peak the car can recharge back up. It's not essential tech and lots of possible delays and regulations problems.



  • Registered Users, Registered Users 2 Posts: 223 ✭✭Maestro84


    Ye everything looks like it is continuing. Happy to see Low Emission Vehicle Toll Incentive Scheme is being kept going.



  • Registered Users, Registered Users 2 Posts: 4,111 ✭✭✭wassie


    EV Rapunzel!

    Article published in Aus about the challenges facing EV owners in existing apartments and getting local charging facilities.

    Probably even more challenges here where folk have no on-site parking access in townhouses & estates.



  • Registered Users, Registered Users 2 Posts: 713 ✭✭✭MangleBadger


    So I went today to have a look at both the Kia Niro and the Hyundai Kona/Ioniq5.

    When at the Kia dealer they used the SEAI grant as part of the deposit whereas the Hyundai dealer took the €5k from the total price.

    Are The Kia dealers wrong here as everywhere else I’ve seen it taken away from total price. It makes the monthly PCP repayment go from €400 to €640 since the car basically gets €5k more expensive and I can’t put more than a 30% deposit down.



  • Advertisement
  • Registered Users, Registered Users 2 Posts: 13,000 ✭✭✭✭the_amazing_raisin


    I don't think there's any rule on how they have to do it, they're still giving you the grant amount

    It is pretty cheeky since it increases the purchase price, and therefore the loan amount

    I guess it might be worth ringing around a few other Kia dealerships. As far as I can tell they've a pretty free hand in how they do things, so the situation might be different elsewhere

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



  • Registered Users, Registered Users 2 Posts: 435 ✭✭mc2022B2TF


    That utter boll%x if that's what they did. That is totally wrong. The grant comes off the purchase price and then u work from there.

    They probably think they are doing u a favour but if u want to put down 30% net of the grant then u absolutely can.



  • Registered Users, Registered Users 2 Posts: 7,315 ✭✭✭zg3409


    Yes the trend is for newer estates to only have parking away from house in shared areas. Even brand new estates being built today with no plans for on street charging with zero driveways. This is more common in cities and council estates. Really every new house with a driveway should come with an Ev charger and 100% of new on street parking. In the plan for national rollout they said they don't want on street charging to happen in housing estates which is crazy.



  • Registered Users, Registered Users 2 Posts: 1,559 ✭✭✭Thumper Long


    Most dealers / finance companies do this, they treat the finance as the total price of the car, include the SEAI grant as part of the finance deposit, meaning that your max deposit is generally 30% which is made up of the SEAI 5K + the balance from the buyer, this allows them to stay within their finance formulas for max deposit and guaranteed minimum value. €640 pm seems very expensive for a Kia with a max deposit on PCP, a Tesla model 3 is about €500pm on max deposit



  • Moderators, Society & Culture Moderators Posts: 42,182 Mod ✭✭✭✭Gumbo


    You realise that all new estates have the ducting in place to allow on street charging.

    In DCC I’ve seen this as far back as 2018 with the Grace Park Development in Drumcondra.

    Its a minimum requirement of the Building Regulations .



  • Registered Users, Registered Users 2 Posts: 13,323 ✭✭✭✭Calahonda52


    That is wrong, 5 k more on say a 40k loan will not shift the monthly by 60% unless the bullet is very small

    I put down 10% on 38 and am on 540 monthly , with bullet of 17 if i remember correctly

    “I can’t pay my staff or mortgage with instagram likes”.



  • Registered Users, Registered Users 2 Posts: 7,315 ✭✭✭zg3409


    But how do we go from that to having chargers in place? There is often no designated spaces and so all spaces would need a charger for this to work. As a result if it did happen it would probably be an expensive to use solution using shared power and shared maintenance so costs per kWh would be higher than possibly diesel. Like apartments, great in theory but in practice hardly any places will get a reasonable number of chargers any time soon. Many of these shared parking spaces for houses may now be handed over to the council for public lighting and road resurfacing etc, so it's now a job of council to roll out charging solution, and in reality council has no money, no desire, a policy against this, and in reality nothing will happen. If it does happen it will be expensive to use and not drive change to EV. I am all for ducting but we also need to start rolling out real world street charging.



  • Registered Users, Registered Users 2 Posts: 435 ✭✭mc2022B2TF


    It's PCP so not as straightforward - there will be different GFMV on different cost prices etc. or the dealer may use the same - you will need to look at the finance quotes closely.

    Bottom line is if you want to put in the max deposit after the grant you should be able to.

    Otherwise you are paying interest on money you would rather part with now that get a loan for.

    I presume the E-niro is about 50k pre grant and 45 post grant roughly.

    Make sure you are comparing apples with apples. Some dealers may have a very high GFMV (maybe the hyundai dealer is doing this) versus a lower one (could be what Kia are doing). And the Kona may be a bit cheaper too so that could affect it.



  • Moderators, Society & Culture Moderators Posts: 42,182 Mod ✭✭✭✭Gumbo


    In new estates, parking spots are assigned to individual dwellings. The spots have the house number permantly marked on them and the spot is mentions in the deeds or MC agreement.

    New estates nowadays are never handed over to the council, hence management companies.



  • Advertisement
  • Registered Users, Registered Users 2 Posts: 435 ✭✭mc2022B2TF


    for anyone looking for a decent PCP/HP calculator:


    https://www.pcp-calculator.com/PCP-loan-calculator.html



This discussion has been closed.
Advertisement