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Best Electricity Plan for new EV Owners

1173174176178179210

Comments

  • Registered Users, Registered Users 2, Paid Member Posts: 4,012 ✭✭✭Nigzcurran


    I have been with prepay power for years now for gas and electricity, have started the process of switching to electric Ireland and the loyalty department rang me offering €500 to stay. Told them to shove it. They are charging 35c electric and 15c gas plus all their crazy standing charges. I'm going onto the 24hour 25c electric 8c gas and suits us perfect as we only charge the EV about once a week.

    Time is contagious, everybody's getting old.



  • Registered Users, Registered Users 2 Posts: 4,921 ✭✭✭joe1303l


    Absolutely, a big battery EV can take 10+ hrs to replenish if close to empty.



  • Registered Users, Registered Users 2 Posts: 2,838 ✭✭✭fafy


    we will have 3 EV’s soon, with daughter getting an E Up, fortunately, herself does all charging at work in her ID4, but leaving that aside, it would need some organisation alright, in our 4 hour night window, thats why i discounted the 2 and 3 hour windows tariffs, just not flexible enough, particularly in winter, but getting into a habit of daily charging, its probably manageable, depends on ones daily commuting really



  • Registered Users, Registered Users 2 Posts: 2,838 ✭✭✭fafy


    https://www.boards.ie/profile/908361/Nigzcurran

    You might do better on this one for Electricity only, i don’t know of anything cheaper on a 24 hour Electricity tariff.

    https://www.energia.ie/exclusive-axa-promotion-offer

    24 hour Electricity (standard plan)only is 22.47 inc vat, and standing charge of €236.62 annually inc vat.


    For gas,

    depends on your usage, but Flogas have 8.54 cent per unit inc vat, with a €50 credit, standing charge of €151.19 inc vat.

    https://www.flogas.ie/price-plans/residential/



  • Registered Users, Registered Users 2 Posts: 10,481 ✭✭✭✭CoBo55


    What speed does a battery charge at? It's a figure that's impossible to find.



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  • Registered Users, Registered Users 2 Posts: 1,142 ✭✭✭Exiled Rebel


    Its usually limited by the charger. Most home chargers are 7kW. Divide the usable size of your battery by 7kW in this case to give you the number of hours it would roughly take to go from zero to 100%.



  • Registered Users, Registered Users 2 Posts: 2,838 ✭✭✭fafy


    My charger (Andersen A2)tells me the exact speed, it maxes at 7.2, and as car battery has a charging curve, this reduces as it approaches closer to 100 %



  • Moderators, Home & Garden Moderators Posts: 7,427 Mod ✭✭✭✭graememk


    Yes limited by the charger.

    But the charger is in the car, that's what does the AC/DC conversion.

    Some early leafs charge at 3.6kE, most newer ones are 6.6kW. I am unsure if the new ones are still 6.6kW or 7kW.

    Nearly all other bev charge at 7ish kW (32 amps)

    So if your grid volt is 230v you'll get 7.2kW

    But if it's low say 215 it will only be 6.8kW

    The charge point configuration can also limit the charge rate

    (On single phase, some cars can charge faster than that on the phase AC, eg the Niro can charge at 11 kW on three phase)



  • Registered Users, Registered Users 2, Paid Member Posts: 13,547 ✭✭✭✭the_amazing_raisin


    Did you mean a home battery? It's generally measured as a ratio if the capacity, often for LFP cells it's recommended to charge at 0.5C

    So a 10kWh battery can charge at the

    You can sometimes charge or discharge faster, but you need to check the battery spec sheet

    You may also be limited by your inverter or charge controller

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



  • Registered Users, Registered Users 2 Posts: 10,481 ✭✭✭✭CoBo55


    Yes it was the home battery I was asking about, I think you missed a bit in your reply but I get it. It's similar to charging a car battery, don't exceed a certain percentage of the capacity for the initial charge and taper off after that.



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  • Registered Users, Registered Users 2 Posts: 1,216 ✭✭✭Comer1


    The highest I can set my home battery is 3kw. The most my house will pull is around 10.5 KW so when the home battery is charging and my wife's EV is on the granny charger, my own car will only pull around 5 KW from the Zappi. Depending upon what else is on in the house, it coukd be less.



  • Registered Users, Registered Users 2 Posts: 10,481 ✭✭✭✭CoBo55


    Thanks for that, I've seen 12kW on my connection so I should be safe enough (if I ever get a battery 😆)



  • Registered Users, Registered Users 2 Posts: 2,838 ✭✭✭fafy


    My one charges in 2 hours 45 minutes from 10 to 100 %, its 15kw, but the lowest it goes is 10%, so it charges up at around 4.6 kw, its limited to the invertor max, which is 5kw, and there some minor losses converting to DC


    last night it was at 16% when it started charging at 02:00 and was at 99% by 04:30, a slight curve at the very end.

    IMG_0741.jpeg


  • Registered Users, Registered Users 2 Posts: 10,481 ✭✭✭✭CoBo55


    Brilliant, thanks for that great explanation. 15kw is a good sized battery it would cover that morning breakfast usage very easily until the sun came up and started helping things along.



  • Registered Users, Registered Users 2 Posts: 2,838 ✭✭✭fafy


    It is covering all house usage, for almost every day, exceptions are very cold days, and days when solar production is near zero, we thankfully don’t have any electric showers, so that really helps, and try to stick to timed washing machine, dishwasher during 4 hour night window. All hot water and ev charging during 4 hour night window.

    Heat pump is biggest user by day, for autumn/winter, but even today, i knew we would not use what was left on battery so exported about 6kw, bearing in mind, i am getting 24cent for export. but it was only 7.5 cent to charge the battery.

    In summer months were exporting 800 + per month, a combo of excess solar and exporting from battery, which won’t get used



  • Registered Users, Registered Users 2 Posts: 610 ✭✭✭TheSunIsShining


    There's also the charging losses to take into account - as I recall on a home charger it's up to 20%



  • Moderators, Home & Garden Moderators Posts: 7,427 Mod ✭✭✭✭graememk


    Wouldn't be as high as that, but definitely in the 5-10% range.

    My inverter charging batteries has a 8 % charging loss, (AC in, Vs DC into battery)



  • Registered Users, Registered Users 2 Posts: 950 ✭✭✭keno-daytrader


    We went from Energia Smart Data to BG ev plan, with the addition of a new EV last week. Our FIT rate is less but should make up for it on the 6cent window.

    I plan to shift all of the EV, hot water and a good bit of heat to the underfloor from the heat pump, dishwasher and laundry on the 6 cent rate. Have 16 kVa import so hoping to save a bit more, even though Energia smart data was a great plan.

    BG EV plan

    34c peak

    24.8c day

    18.5c night

    6.3c 2-5 night

    Energypal is a huge help for people who use it!

    ☀️ 8.2kWp ⚡4kWp south, ⚡4.20kWp west



  • Registered Users, Registered Users 2 Posts: 1,061 ✭✭✭Jakey Rolling


    Energia FIT reduced from 24c to 20c from mid January. Hopefully they will also reduce their tariffs by 16% ! I'd expect others to follow, so no point in hopping to another supplier based on FIT.

    100412.2526@compuserve.com



  • Registered Users, Registered Users 2 Posts: 2,838 ✭✭✭fafy


    A reduction was not unexpected, but that is a significant drop, almost 17% reduction, from 24 to 20 cent, so one would expect downward movement on the Energia tarriffs.

    Energia still remains as the 2nd highest microgen rate, with the worst being Yuno, only 15.89 cent.

    Pinergy now the front runner, still paying 25cent, allthough reductions are likely coming soon.



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  • Registered Users, Registered Users 2 Posts: 2,203 ✭✭✭drury..


    Just make sure you've isolation for the immersion heater

    Something the google electricians overlook



  • Registered Users, Registered Users 2 Posts: 7,082 ✭✭✭MojoMaker


    Bit like EV toll rates I think FIT payments will be wound down over time and eliminated unless you're producing quantities that would genuinely assist the grid.



  • Registered Users, Registered Users 2 Posts: 15 LowPowerMode


    Hopefully you're not familiar with the switchbot? - it just attaches to the existing immersion switch so it's the same as just manually turning on and off the previously working switch. As initially mentioned that was one of the reasons for going that route - no concerns about any wiring etc.



  • Registered Users, Registered Users 2 Posts: 1,216 ✭✭✭Comer1


    If FIT goes, it will push Return of Investment back so far as to make me think that solar in Ireland is a bad investment.



  • Registered Users, Registered Users 2 Posts: 2,838 ✭✭✭fafy


    zero evidence of it going anywhere, this is a cornerstone of government and EU policy, so its going absolutely nowhere. It was well flagged and expected, that export rates would reduce slowly, in line with most unit prices, which have also reduced, albeit slowly.



  • Registered Users, Registered Users 2 Posts: 2,838 ✭✭✭fafy


    Theres a lot of people exporting, albeit most are probably small exporters, combined together though, this does has a significant impact, i exported just over 5,000 from Feb to end of October, next year, i’l do 7,000 minimum for the full year, as we only got the battery installed mid year, and had a few teething issues, and had an unavoidable export pause for a period. These are very sizeable numbers, and many have way higher export volumes than this. There are a few on here with larger systems, and i’d guess some exceed 10,000 units in export annually.

    It would be very interesting to see some data on the national FIT picture.

    What i fail to understand is i see all these new homes being built, and they are only getting a “token” number of panels, to get to an A or B rating, and to tick those green credential boxes, and for feelgood marketing purposes, rather than longer term practicalities. Even the bigger new homes, appear to be drastically under specced for PV panels, and they all have heatpumps.



  • Registered Users, Registered Users 2 Posts: 28,384 ✭✭✭✭drunkmonkey


    any deals out there, up for renewal and being offered .2964 24hr rate with a standing charge of 257.38.



  • Registered Users, Registered Users 2, Paid Member Posts: 21,915 ✭✭✭✭Cyrus


    thats expensive, i signed up to the flogas BWG rate last year for 24c day and 12c night, must be similar around?



  • Registered Users, Registered Users 2, Paid Member Posts: 21,915 ✭✭✭✭Cyrus


    with heatpump a large battery would be more useful than solar imo.



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  • Registered Users, Registered Users 2 Posts: 28,384 ✭✭✭✭drunkmonkey


    It's flowgas that offered me that, think i'm paying them .27 at the moment. I might ask him about that bwg rate, what is it?



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