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
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Domestic Solar PV Quotes 2022 - No PM requests - See Mod note post #1

17980828485121

Comments

  • Registered Users, Registered Users 2 Posts: 1,508 ✭✭✭DC999


    Mine were only 10w lower output. Was around 3% less output. So it wasn't cowboy stuff. But I want that 3% for the lifetime they are on the roof.

    Worked out better in the end as got 1 extra panel free.



  • Registered Users Posts: 824 ✭✭✭HotSwap


    They ended up using more roof space than was originally planned to achieve the same KWp that was contracted; and only did so when challenged by the customer. He was left with an impossible decision to make on the day of the install; tell them to go home (and end up with no solar PV - prob what I would of done) or accept that he had dodgy guys working for him and try to make the best of a bad situation. Not great.

    would they of also filled in the incorrect kWp value in the SEAI grant applications? Potentially claiming a higher grant than they were entitled to?

    what if this customer wanted to expand his panels in the future using the space that is now taken up with the additional (lower capacity) panels that were needed to reach the contracted KWp.

    no excuses can explain this behaviour and they should be reported and removed from the SEAI registry. For me this is a clear example where the lowest price isn’t always the best quote.



  • Registered Users, Registered Users 2 Posts: 7,571 ✭✭✭con747


    Where does someone say "They ended up using more roof space than was originally planned to achieve the same KWp that was contracted;" I can't find that post? Asides from that I am not getting into an argument when the people who received different panels are happy from what I can see.

    If you don't agree with the way things are these days with supply issues tell the installer to do one and find another one. Simple as that.

    Don't expect anything from life, just be grateful to be alive.



  • Registered Users Posts: 824 ✭✭✭HotSwap


    He said it above; they had to install an extra panel to make up the difference. What if they didn’t have enough room to install that extra panel; he would have been left short. it’s just unprofessional simple as that.

    Supply issues don’t explain the installer not being transparent about the different capacity panel they attempted to install. They only added the extra panel when the customer raised the point with them.

    I have a high standard for the people I allow to work for me so I look at it in a different way (I’d be getting a written quote with specific make / models of equipment listed); if people are willing to work with installers like this who are not transparent about what equipment they will be installing and swap things at the last moment this unfortunately allows that type of behaviour to become the norm and makes things worse for everyone. If most people called these types out they wouldn’t try to get away with it in the first place.



  • Registered Users, Registered Users 2 Posts: 7,571 ✭✭✭con747


    Please highlight were it was mentioned extra roof space was used. As I said I am not going to derail this thread arguing with someone. As you stated you would not accept that so fair play to you, others might not want to wait another 3-9 months or longer to find another installer.

    Don't expect anything from life, just be grateful to be alive.



  • Advertisement
  • Registered Users, Registered Users 2 Posts: 2,594 ✭✭✭bullit_dodger


    Yeah if you wanted 350w and a supplier rocked up with 340 watts, would I (really) be that pushed? Dunno to be honest. More disappointed that I didn't get the biggest system I could on the roof, but would I cancel the whole thing? Probably not. 2-3% wouldn't really make that much to a muchness, but yeah sure if you wanted 400w and they came with 350w panels.....I'd be expecting them to make up the difference in an extra panel or two. You pay for the size system usually on the quote.

    Supply issues do come into play due to the long lead times, but they should be upfront about it. Nothing wrong with being transparent about swapping panel "x" for panel "y", within reason of course.

    Least that's IMHO



  • Registered Users, Registered Users 2 Posts: 1,523 ✭✭✭machalla


    Quote received. Does this seem high or normal for these times?

    System size: 6KW - PV Panels – Longi 410W Pane x 15

    Solis Hybrid 6KW Inverter

    Weco 5.3XP Battery

    Installation, certs, paperwork, etc

    Total cost: €16,800 including VAT.

    SEAI Grant - €2,400

    Price after grant - €14,400



  • Registered Users Posts: 824 ✭✭✭HotSwap


    Panels 200 each. 15*200=3000

    Inverter. 1700

    Battery. 2400

    Roof Mount. 700

    Cables / Isolation / Misc. 200

    So it’s about 8000 (inc vat worth of gear) and they are charging 16800. so they are charging 8800 to install it all for you. Maybe they will have a team of multiple skilled workers on site and get the job done in day; and perhaps that’s important to you; I would ask how many people will be on site and for how many days to justify the 8800. Unless they claim it’s going to take them a week with multiple on-site each day I don’t know how they can justify this.

    after the grant it works out at 2400 per kWp which is a lot (I have done ground mount systems with 10kWh battery’s for close to 2000 per kWp; and there are considerably more costs when doing ground mount); but this is being driven up by the fact that the battery is included in the bundle; ask for the price for the same system without the battery (but ask them to keep the hybrid inverter - as you might add a battery later; so only one thing on the quote is changing) and see what they come back with so see how much they are marking up the battery over the 2400 it costs using my prices above.

    hope it helps



  • Registered Users, Registered Users 2 Posts: 1,523 ✭✭✭machalla


    Hi Hotswap, really appreciate you looking at this.

    I will try your suggestions and I am seeking other quotes. Interesting to see the wild variations in price.



  • Registered Users Posts: 178 ✭✭olympicweights


    Going by the general pricing guide I'd say around €10k would be a good price after grant.



  • Advertisement
  • Registered Users, Registered Users 2 Posts: 2,019 ✭✭✭jkforde


    yep, that's high, I'd get them to price each item and if they won't, keep looking. and I agree, think about excluding the battery for now considering that there might be a fair few 2nd hand batteries coming on the market in the near future.

    🌦️ 6.7kwp, 45°, SSW, mid-Galway 🌦️

    "Since I no longer expect anything from mankind except madness, meanness, and mendacity; egotism, cowardice, and self-delusion, I have stopped being a misanthrope." Irving Layton



  • Registered Users Posts: 824 ✭✭✭HotSwap


    While i agree ideally quotes should be broken down like this I don’t think you have a chance of them responding if you ask them explicitly for a breakdown like this.

    your best chance is going with the “remove the battery” but “keep everything else the same”. Then you can have a decent idea what they are at.



  • Registered Users Posts: 1,508 ✭✭✭Manion


    I got the same gear just there In December:

    System size: 8.2KW - PV Panels – Longi 410W Pane x 20 (The black panels)

    Solis Hybrid 6KW Inverter

    2x Weco 5.3XP Battery - total 10.6 (These are sold as 5kWh Batteries usable)

    Installation, certs, paperwork, etc

    Total cost: €16,045 including VAT.

    SEAI Grant - €2,400

    Price after grant - €13,645

    out of interest, what direction are you installing yours in?



  • Registered Users, Registered Users 2 Posts: 5,862 ✭✭✭creedp


    Yes I had planned to install solar shortly after putting in the charger but unfortunately time has passed and I'm only now looking at solar. I mentioned it to the crowd that called but I dont think the guy was too technically clued into what linking the charger with the solar involved. The garage is very close to the house but it is a block build. In retrospect I should have attached charger to external wall of house but it was more convenient to locate in the garage. There is a cat5 cable in the comms box at the side of the house which is directly across from where the charger is located in the garage. Not sure would be of any assistance.

    Will have to clarify the issue now.



  • Registered Users Posts: 899 ✭✭✭ColemanY2K


    Nice system but are you in danger of blowing the inverter with an array that size?

    🌞 7.79kWp PV System. Comprised of 4.92kWp Tilting Ground Mount + 2.87kWp @ 27°, azimuth 180°, West Waterford 🌞



  • Registered Users Posts: 65 ✭✭nummus


    Got this quote - for 7 south-facing and 7 east - seems high

    Longi 410W Panel €240.00 x 14 = 3,360.00 Vat =453.60 Total = 3,813.60

    Solis Hybrid 6KW Inverter €2,500.00x1 2,500.00 Vat=337.50 Total = 2,837.50

    Tigo Optimiser 75.00 x7 =525.00 Vat= 70.88 Total = 595.88

    5.74 KW Solar Installation = 5,000.00 Vat=675.00 Total = 5,675.00

    Total quote = 12,921.98 before grant



  • Registered Users Posts: 1,508 ✭✭✭Manion


    It's pretty standard practice to oversize the panels relative to the inverter provided you meet the design spec of the inverter. Anything over the peak will get clipped by the inverter. The RHI-6K-48ES-5G is the default inverter these days, and it's recommended max Solar PV is 8KWp on the 6KW units. For various reasons I'll never see that extra 200watts so the installation is well within tolerances. Some inverters support DC Coupling batteries, meaning that on a 8KWp solar install with a 6K inverter, instead of clipping the excess energy is shunted into the battery. That's not how the Solis works, but some systems work that way.



  • Registered Users, Registered Users 2 Posts: 2,019 ✭✭✭jkforde


    that's €1.83 per kwp (after €2400 grant) with no battery or diverter, too high imho

    btw, why 7 optimizers?

    🌦️ 6.7kwp, 45°, SSW, mid-Galway 🌦️

    "Since I no longer expect anything from mankind except madness, meanness, and mendacity; egotism, cowardice, and self-delusion, I have stopped being a misanthrope." Irving Layton



  • Registered Users Posts: 899 ✭✭✭ColemanY2K


    🌞 7.79kWp PV System. Comprised of 4.92kWp Tilting Ground Mount + 2.87kWp @ 27°, azimuth 180°, West Waterford 🌞



  • Registered Users, Registered Users 2 Posts: 5,862 ✭✭✭creedp


    Looking at myEnergie documentation it would appear that a harvi that is required to ensure zappi can be set to use solar generated electricity only and the eddie has no role in the process. I still dont know whether the location of the zappi complicates the installation of the harvi as the zappi is not wired directly to the consumer unit but insread to a sub unit located in garage. This is something I will check out with installers.

    Also it would seem to me that roof windows (of which I have 3), rather than veluxes, on a south facing would cause a shadow in the morning and evening. Would using optimisers on the panels located between the roof windows resolve this issue? I also have a single storey hipped roof on the west side of the house, presumably panels could also be installed on this space so long as optimisers are used for these panels as they will be shadowed for a part of the morning?



  • Advertisement
  • Registered Users Posts: 65 ✭✭nummus


    the south side has a chimney that will potentially shade.



  • Registered Users Posts: 1,508 ✭✭✭Manion


    Solar EV charging was something that confused me for a while until I realized I was over thinking it, the charger just measures how much power you're exporting to the grid and looks to get that to Zero by increasing how much energy is going to the EV to match. I'm not sure exactly how the Zappi works but I think there is both a wired and wireless CT clamp option for the load balancing. If you have a CT clamp already installed for the Zappi then perhaps you don't need anything more.

    When you say the Zappi is off a sub board, is the sub board feed from the meter box and or house consumer unit.



  • Registered Users, Registered Users 2 Posts: 5,862 ✭✭✭creedp


    The Zappi wired CT clamps were not installed because I didn't have solar. Problem is that the Zappi is located in a detached garage so would have to cut footpaths and drive to fit a wired CT clamp to main electricity feed, or at least that us what I thought electrician said to me at the time. I might be able to install a wireless CT clamp but am clueless about this stuff so would need to check with electrician.

    Tbh the solar installation is more complicated than I thought and certainly more than the solar sales guy was suggesting. He suggested installing inverter, Eddie and battery in attic room beside imersion tank. That meant the Eddie could easily be connected to immersion. Of course he never said all 3 would have to be connected to consumer unit in a plant room located in the middle of the ground floor (also contains HP). It would require a lot of drilling, chasing walls and cutting ceilings to get a cable from attic to the consumer unit. It might actually be easier to locate all the equipment in the plant room and runs cable from roof down external wall and drill through wall and cut ceiling to get cable into plant room. Would be an awful mess and would meet significant resistance from other half!! Never thought about this stuff when electrician suggested locating the consumer unit in that location!

    By the way the garage sub board is fed from the house consumer unit and runs lights and plugs in garage as well as charger



  • Registered Users Posts: 824 ✭✭✭HotSwap


    What about putting panels on the roof of your garage and putting the inverter in the garage and connecting it to the sun board there?



  • Registered Users Posts: 434 ✭✭tipping


    Waiting for detailed quotes put have had 2 suppliers back with estimates so far


    Supplier 1:

    10 panels (4kW) system on south facing bungalow roof (roof has multiple velux so fitting above below and even between in places)

    Inverter capable of battery

    Eddi

    ~10k after grant (>20 week leadtime)

    No battery

    Supplier looked at our usage and reckoned he could fit another few (2-4) panels on there but didn't think we needed them based on historical usage.


    Supplier 2:

    16 panels on garage roof, 8 east and 8 west

    Inverter capable of battery

    No eddi

    No battery

    ~9.5k after grant (~8 week leadtime)


    I reckon supplier 1 is too high and with long lead time.

    I was surprised supplier 2 recommended east-west orientation, says you'll have early morning and late evening PV. (Now the garage is detached, unshaded and I'm sure would be an easier install)

    I think the Eddi is probably good for our house as we currently heat our water in the summer using the oil boiler and have lots of teenagers.

    I'm going to look for at least another quote but would appreciate any feedback. I'll update with more details once I get the formal quotes.



  • Registered Users, Registered Users 2 Posts: 8,877 ✭✭✭micks_address


    interesting you have east/west/south in play.. south is generally best... but i have south east/south west... the north west generates next to nothing for me from november to maybe march *only got installed in november.. so don't know when it will kick in.. sun sets before it gets around enough to hit the panels.. is the east west split for quote 2 4kwp as well? Its not a huge system.. for instance i've 7kwp 4 on the south east, 3 on the north west.. the prices seem kinda high without a battery.. my system cost 11.5k after grant for 7kwp, 9.5kwh battery installed in november.. prices have gone up though.. i supplied an eddi which they fitted as part of install



  • Registered Users Posts: 434 ✭✭tipping


    Quote 2 is for 6.4kw I believe, I just don't have the detailed quotes yet.

    We're a one off house in the countryside pretty much completely unshaded so have lots of options really I suppose.

    Our electricity usage is averaging about 16kWh per day over the last few bills.



  • Registered Users, Registered Users 2 Posts: 8,877 ✭✭✭micks_address


    a couple of folks here have south facing systems and get very good generation even in december.. have both sent you potential generation information? they should send you a graph of what you potentially can generate annually based on your location and orientation.



  • Registered Users Posts: 434 ✭✭tipping


    I haven't gotten the details yet, I'll update once I get a 3rd quote and the details from the various suppliers



  • Advertisement
  • Registered Users, Registered Users 2 Posts: 2,019 ✭✭✭jkforde


    @tipping you can use

    https://re.jrc.ec.europa.eu/pvg_tools/en/

    just note that South is 0 degrees when you're entering your azimuth.

    🌦️ 6.7kwp, 45°, SSW, mid-Galway 🌦️

    "Since I no longer expect anything from mankind except madness, meanness, and mendacity; egotism, cowardice, and self-delusion, I have stopped being a misanthrope." Irving Layton



  • Registered Users Posts: 1,508 ✭✭✭Manion


    Hi Tipping,

    What size inverter are you getting with both installations? It should be a 6K inverter to give you the most potential for future upgrades.

    The recommendation these days would be to maximise your solar generation capacity. The idea of cutting back on the number of panels to hit a sweet spot for generation/consumption doesn't really hold. For illustration a 4kW peak capacity system will mean that really only in May are you hitting your full requirement, and even then due to the lumpy nature of generation you're likely not to have the energy when you most need it.

    As you've discovered, by shopping around you can easily get more panels without having to pay more money and panels have gotten cheap relative to the cost of everything else.

    Your E/W 6.4KWp installation will generate based on Europa significantly more energy over the course of the year than a 4KWp and the Energy generation in theory will be belter spread out. ~4700 Units compared to ~ 3700 Units. Is 16 the max panels that will fit on the shed? If you could get that up to 20 panels I'd go with that over 10 panels south facing which probably will have partial shading issues due to window placement. I bet the slope of the shed is more gentle as well? That's another plus factor.

    An Eddi doesn't really make sense anymore given the Feed In tariff for excess power. Quote 2 is closer to the money but still somewhat over priced.

    Post edited by Manion on


  • Registered Users, Registered Users 2 Posts: 5,862 ✭✭✭creedp


    Unfortunately garage is E/W facing and to the east of the house so shaded for a good part of afternoon



  • Registered Users, Registered Users 2 Posts: 1,508 ✭✭✭DC999


    As @micks_address, South produces the most. I’ve an E/W and tiny S. S will produce the most, fullstop! So max S out. More it produces, the more FIT you get paid when not using the power. E/W is much poorer in winter. 

    Installers will want an easy life. Working on 3 roofs adds to their work. I had to push for installers to quote for that. Mine are actually on 4 roofs now (2 x E, 1 x W, 1 x S). So get what suits you!

    While W will give evening sun, I’ve a 1.2kWp NW (it’s not really W) and only get a few hundred watts tops in the evening. So it won’t power your home.

    If it comes down to cost and can only get 2 roofs, max the S. And then pick E or W depending on when ye use more power (E for morning, W for evening). Or whichever roof will fit more.

    NW will die from end Sept until March. Sun won’t ever hit the panels. But it’s still worth having once all other roofs are filled.

    Golden rule is get as many panels as you can afford on install day. My roof is filled and can’t fit more. I wish I could. I'm out of touch on pricing so can't help there, but I've given some design ideas above.



  • Registered Users Posts: 1,508 ✭✭✭Manion


    Most domestic inverters will be limited to two strings (sets of panels) of about 10-12 panels max each. The poster will have to choose between a 6.4KWp installation E/W or a 4KWp south by the sounds of it. Alternatively if you get 4KWp south facing and then the second string on the shed, that would be the best set up but depends on the separation of the two and the max run for the DC cables from the house to the shed.



  • Registered Users Posts: 434 ✭✭tipping


    Just starting the process and lots to think about here.

    The garage (here when I bought the place) was I reckon built to the same standard as the house probably as a future conversion (cavity walls, windows ground and first floor, pitched EW roof with a velux in each aspect), and is about 80sqm at ground level. It's about 10m to the west of the house and is pretty much completely unshaded. It's fully wired with it's own fuse board etc.

    The house itself is a double hipped roof bungalow (had forgotten about the hipped roof) with converted attic. There's 6 velux along the main length of the house (South) and 1 velux each on the East and West aspects. L shaped on the East so that Elevation is longer.

    The east elevation is partially shaded by an old Ash tree that I think has Die-Back and I'm going to pull down some day. The west elevation is shaded a little by the pitch roof of the garage in winter

    So actually on the main house perhaps I could max out the South. Installer 1 reckoned he could fit more than 10 (maybe 12-14 panels in the space) and go with a second string on E or W. Garage could be left as a future project.



  • Advertisement
  • Registered Users Posts: 434 ✭✭tipping


    I haven't received the detailed quotes yet (as regards inverter size) but will update once I have.

    Thanks for the input on the Eddi, I'll check the maths on that.

    The garage is ~ 7 x 11m with a pitched roof probably about 45 degrees, pretty much the same as the house. I don't know what size a panel is but it's a pretty big roof so could imagine fitting more

    Yes the more I'm seeing, get as many panels as I can.



  • Registered Users Posts: 434 ✭✭tipping


    This is great.. I'll come back with figures once I figure out how many panels I can actually fit



  • Registered Users Posts: 1,508 ✭✭✭Manion


    That's absolutely what you should do then. Max out the south aspect and then go for East or West for the second string of another 10 panels.

    You'll get 4529.24 Units for 12 panels south, and another 2727 for 8 panels west. Depending on the inverter and panels you might have a max of 10 panels each string and he should not split a string across aspects. From March till October you would basically generate more than 100% of your electricity needs. Even a small battery in there would smooth out your consumption during a day to ensure solar generated during the day was available at night.

    You should be able to get an 8KWp system with a 6K hybrid inverter installed for the money you've been quotes after grant.









    Now there's all types of things you can do to get even more power out of your setup and those can be explored with a bit of research but the simplest and cheapest thing to optimize for is the number of panels. Your shed sounds like a house btw ;). A few posters here would have that decked out with panels as well, even south facing wall mounted ones with a second inverter. It sounds like your property is idly suited for being a Solar powerhouse, if you where inclined. If your heating system was a heat pump you'd be laughing.



  • Registered Users, Registered Users 2 Posts: 7,571 ✭✭✭con747




  • Registered Users Posts: 824 ✭✭✭HotSwap


    They said they were gonna have to rip down ceilings / floors etc to run the cables in the main house.

    they also mentioned that the S facing house roof is littered with velux windows; it will prob end up looking like a dogs dinner.

    assuming there is suitable space in the garage for the inverter to be wall mounted; they could just just max out the E/W roof on the garage it could be a much neater install. The only thing is how big is the cable that connects the garage to the mains. If it’s 6mm2 SWA it will be enough to support a 6kwh inverter.

    they are saying that the roof is 11M long. So you can comfortably fit 8-9 panels portrait on each of the E and W faces. So could get up to 16-18 panels total; maybe more if they can fit a second row. That’s a 7.5 kWh system.

    an issue with having panels on both the house and the garage is they will have to figure out how to get the DC cables from one building to the other; this could be messy if they have a nice concrete / tarmac drive; unless they wanna have two separate inverters.



  • Advertisement
  • Registered Users Posts: 1,508 ✭✭✭Manion


    I might have missed that or it’s on another thread. Obviously there is a balance there in how disruptive the installation will be and aesthetics. That’s a personal decision.



  • Registered Users Posts: 134 ✭✭Savetheplanet


    I think you are mixing up two similar posters quotes.



  • Registered Users Posts: 88 ✭✭mno101


    hi all,

    great content here. my usage in 2022 was ~7,000 units. with 40% of the units consumed between 5:50pm and midnight

    i received quote for the following - €13,400 before grant. €11,000 after.

    4.2kw system

    6kw hybrid inverter

    10 tiger panels 

    4.8kw battery (2 x 2.4)

    eddi

    i was told that getting 2 x 2.4kw batteries is better because its easier (financially ) to add another battery in the future. if i get a 5kw batter the only option in the future is to upgrade with another "expensive" 5kw.

    i was not given the option without battery ....but i am going to go back and ask for it.

    i still think its too expensive based on what i have read here. comments appreciated.

    cheers



  • Registered Users Posts: 1,508 ✭✭✭Manion


    Should be about 7.5K after grant based on guidance so coming in 3.5K over, or about 45% overpriced.

    usual questions apply, 4.2 all you can fit, and what aspect are you facing? At 7000 Units a year you'd definitely benefit from a bigger system.

    Two batteries are better than one in terms of discharge/charging in parallel. I guess they're PylonTech? In the future will you even be able to source such small batteries. Popular here due to the grant but that is done. I'd only be going down this road if it was the lowest cost per unit capacity, that's what you should optimize for. Here is a Weco for 2530 euro inc Vat https://solartricity.ie/weco-range-2/ versus a PlylonTech for https://www.ecostore.ie/p/pylontech-lithium-ion-24kw-us2000c-battery-48v/us2000c?gtagrefurl=https%3a%2f%2fwww.google.com%2f for 1400, the Weco is about 14% cheaper per unit for instance. Depth of charge is also relevant as not all batteries are 100% usable, so worth checking.

    You'll need around 10kW capacity if your plan is to be off grid from 5pm to midnight. I'd just get one 5Kw battery if you're unsure of the value with a view to adding a second of the same capacity if you need it. This business of going up in 2.4 KW chunks is a nonsense as your major cost will be getting the guy out to install.



  • Registered Users, Registered Users 2 Posts: 5,862 ✭✭✭creedp


    I'm considering my options here as well as lconnecting inverter to consumer unit will be very distruptive if inverter is located in the attic. An option I was considering is to locate panels on house roof and run a cable from house to garage to connect with inverter and battery located in garage. I dont like to idea of an overground cable connecting house and garage but it might be a least worst option. One question I have relates to this point

    "The only thing is how big is the cable that connects the garage to the mains. If it’s 6mm2 SWA it will be enough to support a 6kwh inverter."

    The garage sub board is connected to house by a 6mm2 swa but this is used to power zappi located in the garage. Will it be OK to connect a 6kwh inverter to this cable given that it is used to power light, plugs and zappi?



  • Moderators, Home & Garden Moderators Posts: 6,425 Mod ✭✭✭✭graememk


    The only issue could be the zappi, if you were charging your batteries overnight and your car.

    But the zappi can be configured not to overload cables too, eg not to have more than 32 or 40 amps on the supply cable to your garage board.



  • Registered Users, Registered Users 2 Posts: 5,862 ✭✭✭creedp


    Thanks, OK so that is a potential headache I hadnt considered. I originally decided to locate in garage as it is great to have a completely condensation and frost free car during the winter. The alternative was to locate beside meterbox but unfortunately thats directly underneath TV ariel and a magnet for bird sh1te!!



  • Registered Users, Registered Users 2 Posts: 1,508 ✭✭✭DC999


    And tbh you'll car battery will prefer that slow charge anyway. Not an issue on a night charge assuming you've a night meter as there is a large time window to charge. But if doing a boost charge during the day it would slow the charge down of course.



  • Registered Users Posts: 39 D.flynn


    just got quoted €14,650 inc VAT after Grant for 5.81kW system in Galway:

    14 Jinko 415W panels

    Huawei 6kW inverter

    Huaweri 5kWh Battery

    and eddi. quote does not state optimisers, but they will be needed.

    does that sound about right ?

    Still thinking of going the DIY route.



  • Registered Users, Registered Users 2 Posts: 5,862 ✭✭✭creedp


    Sure with a day/night meter currently its not a problem with a 9 hour night rate. However, with the advent of smart meters the night rate window might not always be so generous. Also if you want a full overnight EV charge for a longer journey, it may not be possible to fully charge both batteries on night rate.

    I've tried to work out the max charge rate for solar batteries but I've got myself all confused between volts and amps. Can you tell me how quickly solar batteries can charge / discharge in kw? I think its approx 5kw which would mean a 10kwh battery could be charged in 2 hours, leaving the rest of the night rate time for the EV, which would be OK at point in time, whatever the future might bring.



  • Advertisement
This discussion has been closed.
Advertisement