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Smart Tariff Unit Rates

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Comments

  • Registered Users Posts: 43,743 ✭✭✭✭ 6


    Nice savings so far.

    You charged batteries are used up by 8am? You can't tinker with the discharge time?



  • Registered Users Posts: 2,788 ✭✭✭ irishchris


    What size battery have you got? With my 10kwh pylontechs I generally get all day through to ev plan charge hours again which is helped by being supplemented by any solar during day. When there are bad weather forecasts I will sometimes add an extra hour of night rate at 7am to top back up but will be stopping this from this week on now with Feb around the corner.

    Ideally I would prefer 20kwh batteries to cover excessive use on odd day as well as for storing excess in summer when not charging at night. May well go the DIY battery route and sell the pylons later in year when get extra panels installation sorted.




  • Registered Users Posts: 791 ✭✭✭ reklamos


    No the batteries are not used by 8am, since I was charging them between 2-5am they were used for night rate 5-8am and I was not sure if that is the best use for them because night is cheaper compared to day rate. But inverter does not allow to stop discharging between 5-8am. Anyway this has been no addressed with automation. Will see if there's any benefit in that.

    I do have 3x3.5kWh pylons but I am not fully charging them overnight. I've got now 20kWh DIY pack balancing and will be hooking it soon and getting rid of pylons. It is still monitoring/learning phase for me on what is the best charge/discharge strategy. Once I get more data probably will add some machine learning and let it decide/automate on charging. I was not expecting that I will use 50% of EV rate so I am happy with that but still there is room for improvement :)



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


    I have a smart meter fitted at my house, but I am still on a standard plan, I want to switch provider now that I am at the end of my current contract, can I select a standard plan or am I required to select a smart plan?



  • Registered Users Posts: 2,788 ✭✭✭ irishchris




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  • Registered Users Posts: 5,368 ✭✭✭ JimmyVik


    I notice the smart plans that have low unit prices also have very high standing charges. This thing is looking more and more like a con every day.

    Its a wonder the likes of Conor Pope doesnt see this and write something. Its almost like its invisible. To me this is worthy of a prime time episode too.



  • Registered Users Posts: 43,743 ✭✭✭✭ 6


    Email him. It's the sort of thing he highlights



  • Registered Users Posts: 360 ✭✭ TheWonderLlama


    I was looking at setting this type of thing up with charging batteries at night. If you do decide to get rid of the pylons, let me know, i'd love to get a hold of them and see if I can beat the system.



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


    I have a similar setup - i cant stop the Solis charging without immesiately consuming battery after charging stops.

    Would another option be to set two different nighttime charging rates tho? up the Amps during the EV rate... and mostly fill the battery - and then really drop the amps at 5am on a different charging period until 8am.

    That should give you the benefit of the lower prixe, and save the battery to be used at day rate times after 8am...



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  • Moderators, Education Moderators, Home & Garden Moderators Posts: 7,397 Mod ✭✭✭✭ Jonathan


    I was investigating something similar for other reasons but on the Solis you can only set one charge current irrespective of how many charge periods you have set.

    The solution for those with Smart Tariffs with a night rate and a super cheap 3 hour window is to define the charge period for the entire night rate period with a charging current of 0A. Then use automation to change the charging current to say 50A between say 02:00 and 05:00, then back to 0A again.

    This will mean you will pull from grid during entire night rate period, and battery will only charge during super cheap 3 hour window. You'll have a full battery then for the start of the day rate.

    modbus.write_holding_register(register_addr=43141, value=0) # Set charge current to 0A
    modbus.write_holding_register(register_addr=43141, value=500) # Set charge current to 50A
    




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


    Thanks i forgot that u had to define one rate. The automation sounds nifty tho.

    Question... what if you set the charge period from 2 to 8... but set the rate to be high enough to fill the battery before 5am... once battery is full will u still be charged for electricity from 5 to 8? where does it go... back to the grid?



  • Moderators, Education Moderators, Home & Garden Moderators Posts: 7,397 Mod ✭✭✭✭ Jonathan


    The battery won't discharge during a charge period. So to use your example, if you have a charge period 02:00 through 08:00 at say 100A, your battery will be full at say 03:00. Any power required by the house will come from the grid (or from the panels if you have an East facing array). Any surplus from this will be consumed by Eddi/Zappi or exported.



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


    I meant 2am to 8am. but you answered my questions... the surplus will go back to the grid! oh well. If i ever lose my day/ night meter i will have to figure out how to do the automation you mentioned.



  • Moderators, Education Moderators, Home & Garden Moderators Posts: 7,397 Mod ✭✭✭✭ Jonathan


    As did I. I deliberately used 24 hour notation for that reason. 🙂 An Eddi or something should hopefully soak up any excess at that hour.



  • Registered Users Posts: 791 ✭✭✭ reklamos


    So I have been on EV green plan for over a month now. With automation I am charging my batteries only between 2-5AM. The automation still needs a lot of improvement but I now I just aim to bring the batteries to specific SOC level based on next days forcast. The automation adjusts the charge rate automatically based on current SOC and the target SOC and spread the charging between 3 hour period.

    Here are usage figures for February: 50% on EV, 20% on Night, 27% on Day and 3% on Peak rates. I am quiet happy with theses but would like to decrease Day rate usage, it is mostly used 19-23 as the battery is gone by that time. Time permiting this will change soon as I have not connected my second battry yet.



  • Registered Users Posts: 791 ✭✭✭ reklamos


    Send me PM so I have you on record. I probably will start getting rid of them soon.



  • Registered Users Posts: 1,289 ✭✭✭ SD_DRACULA


    Absolute scumbags BorgGais with the hikes, just when I was thinking of switching over to the EV tariff

    I get that the kwh needs to go up based on energy prices but standing charge is just scalping.

    How can they justify the 100 euro increase? They provide you with nothing extra for that...

    Post edited by SD_DRACULA on


  • Registered Users Posts: 43,743 ✭✭✭✭ 6


    Those prices are shocking.

    Could you get a day /night meter?There's much better value out there.



  • Registered Users Posts: 1,289 ✭✭✭ SD_DRACULA


    Nope, already on smart meter, worst choice in recent history



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  • Registered Users Posts: 2,788 ✭✭✭ irishchris


    If you think that's bad try the rural standing charge for that plan. It has now gone up for me to 509 euros!! Absolute robbery!



  • Registered Users Posts: 43,743 ✭✭✭✭ 6


    I've read on this site about people replacing smart meters with a day/night one.



  • Registered Users Posts: 1,289 ✭✭✭ SD_DRACULA


    Pretty sure that's not true, I have called and asked both energia and BG, once you go smart there's no going back. Why would they give you cheaper rates when they can scalp you instead?

    Should we email that muppet Ryan and ask him WTF were they thinking by making elec/gas go private? Competition will lower prices, dafuuq it will, prices went up immediately after they "went" private



  • Registered Users Posts: 1,200 ✭✭✭ beachhead


    Have I missed something or have all companies not increased the standing charge and kWh rate?? The ones declared so far,anyway.The companies don't operate a cartel that's why the announcements are spaced out.



  • Registered Users Posts: 1,487 ✭✭✭ bullit_dodger


    I think the issue is more that "standing charges" are what's being increased. Sure, with the simple economics of supply and demand, if Ukraine and/or other places are creating a supply issue, then of course the price will go up. And while I personally dislike that, that's the reality that we have to live with that if we use more, then the suppliers will have to buy more raw materials to create the leccie.

    What I don't get though is why Standing charges are increasing. That doesn't make any sense to me.



  • Moderators, Education Moderators, Home & Garden Moderators Posts: 7,397 Mod ✭✭✭✭ Jonathan


    I assume it is due to other inflationary pressures, outside of the direct cost of producing a kWh of electricity. Wages, overheads etc.



  • Registered Users Posts: 1,289 ✭✭✭ SD_DRACULA


    Let's call it what it really is, profiteering. Yes some running costs will be higher but I am willing to put big money on it that is not 100 euro more type of thing.

    They saw that everyone else pushed up prices and decided why the hell not. If the kwh prices ever do go down you can bet they will not bring down the standing charges.



  • Registered Users Posts: 1,200 ✭✭✭ beachhead


    I would be inclined to the profiteering angle.It an ideal time to take advantage of people.I doubt much if their overheads,wages(haha) are going up by 24 to 35% Chances of kwh prices down to 2019/20 levels are slim to zero.Standing charges no chance ever go down.



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


    I had a thought today that maybe the trend will go the way phone companies went. Rather than charge for consumed units a flat rate for broadband is now the standard... as green energy comes online just raise the standing charges and it doesn't matter if people go green or not. Let the energy companies build the arrays and wind farms. Depressing



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  • Registered Users Posts: 1,835 ✭✭✭ garo


    Isn't profit the prime motive of capitalism? Why are people suprised that private companies are profiteering. That's the defining feature of capitalism. If you want goverment intervention to control prices wouldn't that make you a socialist or communist? I am just confused as to what people think capitalism is. We have a de-regulated retail energy market so each company is free to set its price. One would think that competition would ensure nobody charges excessive amounts because then everyone would switch away from them. At least that's the theory.



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