agencydude wrote: » Hi guys I'm considering getting some electric PV panels where I'd be able to get a SEAI grant. My current usage over 12 months is about 4000 Kwh on Daytime tariff and 4000 KWH on night time tariff. I charge an electric car at night time. One EV panel installation supplier offered the following 3 options: Option 1 8 Longi Solar (360 W panels) generating 2.9 kwp 3.0 kVA TSUN Microinverter Mounting system : K2 Solidrail NO Battery Cost After Grant : 3990 euros Option 2 10 TrinaSolar (370 W panels ) generating 3.7 KWp Huawai Hybrid inverter 3.3 KVA Battery : Huawei LUNA 2000 5.0 KWh Mounting system : ValkPitch Cost After Grant : 7080 euros Option 3 12 Q CELLS (390 W panels) generating 4.7 KWp Sonnen Hybrid inverted 4.6 kVA Battery : Sonnen 9.53 7.5 kWh Mounting system : ValkPitch Cost After Grant : 10390 euros On top of these costs if I want an immersion diverter it would be an extra 490 euros And a monitoring system from my phone would be 240 euros. How do the above figures look to you guys? Would any of these options be worth going for?
Tuttlinghorn wrote: » Hi Folks, If anyone has the patience I'd appreciate any advice - not just to compare pricing but more to know what spec I should go for, so I can balance vs proposals I'll get from installers. Detached house with plenty of south facing roof space. 2 adults and 2 young teens. Mix of underfloor heating and radiators. Oil fired central heating. House very well insulated following big refurb couple of years back. Currently have a PHEV and expect to go full EV with next car. Low enough mileage on average. annual Electric consumption = 7,700 KWH Quoted EUR 10,000 including vat and after allowing for the grant for Supply and install as below, though this is before any site survey (Lockdown) 4.48 kwp system = 14 x 320w amerisolar panels. 20 Yr warranty Solis Hybrid inverter (pay 96 quid to extend warranty from 5 to 10 yrs). Unclear if I'd get 3 or 5k model) 2.4 KWH pylon tech battery (offered free upgrade to 3.55 if I place order in x weeks etc). 10yr warranty Power diverted to water heating (we have a 300l twin coil cylinder) Questions are ( I think) whether I should go for more panels or different spec of panel or is and is there any point getting a battery if I've a PHEV which spends most of its time plugged in during the day? Thanks in advance!
Tuttlinghorn wrote: » Thanks - the quote came from a company registered with SEAI. I’ll keep shopping. Interested in any other viewpoints on the size / capacity / brand of the panels And On the battery vs diverted vs EV ... thanks All!
slave1 wrote: » As others have said those are loopy prices, please shop around, you can look back on this thread and see the pricing DrPhil got. As another comparison I got 18 Canadian Solar 410w Poly panels, a BPE 5 KW Hybrid Dual MPPT inverter, a Pylon tec 2.4 kw including mounting bracket and all the required cables/switches etc. I should point out I've poor aspect and heavy tree shading on my main string so hence oversized panels vs inverter Gross cost of €8,620, less grant of €3,000, net cost of €5,620 Shop around, don't feed the cowboys
deravarra wrote: » Now that is excellent value. Goes to show that some folks are simply pulling figures out of the air and preying on those who don't have the time or the knowledge to go look in the right places. Can you pm me details of your installer?
gomamochi1 wrote: » Similiar route I went with also= havn't seen it beaten price wise yet!! -Solis Hybrid inverter 5kw to future proof extra panels later date and wifi dongle for inverter app -4.8KW battery -14 panels JA solar 330w on a west facing roof -Eddi water heater for immersion -Zappi 2 car charger untethered and myenergie hub Fair bit of shading due to trees so hope to lash more panels on east roof and maybe ground mount south facing later . 7000e after grant - cost to me.
deravarra wrote: » That is just amazing! What were/are your electricity bills - please include your bill frequency if possible. We're paying about 154 per month with the heavily discounted energia plan. We have no ev at the moment, but will definitely want to go down the road of an Eddi How has the Eddi been? I will be getting a 300l cylinder in soon, replacing my old tiny cylinder. I am hoping the Eddi will sort out most of my dhw needs. 2-3 showers per day (long shower lovers in this house)
graememk wrote: » I assume you have another way of heating your DHW? oil/gas? as your getting a new tank in, will you be able to have that independently control your oil/gas and only heat hot water when needed (ie the heat for the rest of the house doesn't need to be on to heat your hot water)
Deagol wrote: » My bills vary from ~200euro bi-monthly in winter (Nov-Feb) to 80euro or less in summer. Vast majority of that 80 euro is the service charges. Very happy with my Eddi. In winter I have the boiler on going through 300l twin coil tank anyway so don't need it. In the last week it's just started getting enough extra power (Monday for instance I got 21kw total, >8kw went to the Eddi and brought the water up to ~65C) to start using = just as the boiler starts to be used less. Come summer, boiler won't need to be used at all for the hot water tank - bar the odd sequence of days that we could have consistent dark clouds. Other good use I get from the Eddi is I have the relay board fitted and two RTD's so at any time I can check the tank upper and lower temps and decide if it needs a wee boost. Can be boosted then from the mobile phone. (Handy on the mornings I don't want to get out of the bed until there's water for the shower ) . I would say 2-3long showers a day might be pushing it for the solar depending on size of battery and base load of house, even a full 300l tank will struggle with that if they are all at the same time or directly one after another. TBH, I tend to have them in the evening and herself in the morning so not sure exactly how it would work. PM me if you need any extra detail.
deravarra wrote: » Thank you for the info When I said long showers, I meant about 5 mins most days before work - and an odd day when I'd be closer to 10 mins. If the shower is being used one after the other, we're either off out somewhere or in a hurry to do something - so that would be the shorter showers.
Deagol wrote: » Me and you have differing definition of long showers My after cycle showers are 20mins - sore muscles appreciate a good soak in a serious power shower! 5 mins x 3 would be no issue with a full 300l tank. One thing to note though is it's amazing how much water stratifies in a tank. I often see top temp at 58C and the bottom at 20C. Without being able to see that i would say you could easily end up with the third shower being a bit cool
Ubbquittious wrote: » I dunno how anyone is running out of water for a shower with a 300L tank. Have never showered long enough to deplete a standard 150L one. In my day the 300L tank would suffice for an orphanage.
deravarra wrote: » Punoed showers can use 15l per minute. That 300 litre cylinder could be gone in 20 minutes. That's a small orphanage you have there 🀣
deravarra wrote: » Punoed showers can use 15l per minute. That 300 litre cylinder could be gone in 20 minutes. That's a small orphanage you have there ��
slave1 wrote: » As others have said the EDDI will do very little Nov-Feb, if you get a good day outside that then it can easily put a lot to hot water but this totally depends on your house load, battery levels, your potential generation and hot water usage. I can see my Eddi taking 1-3 kW a day here and there but this can be made up of streaks of 100-200w etc which in reality can’t be heating the water to a great extent. I’d say you’d need a good 1.5kW+ to truly heat water in a meaningful manner. EDDI is quite straightforward so a self install if you want to keep costs down.
deravarra wrote: » The 1-3kW per day - would there be some occupancy in the home for a good part of the daytime? Since both my wife and I are shift workers, we can be away for long parts of the day. That should/could make a difference re: Eddi to dhw - well, I would hope it would. 18 panels on a west facing roof ... I havent seen that many panels on any domestic roof before. We have a south facing roof at a 45 degree angle - no shading at any stage. Am looking forward to getting the engineer out for a consultation and seeing what they say/recommend
slave1 wrote: » If you have a South facing shadeless roof then just fill her up, I don't know why you need an engineer though, just a solar installer. If you are not at home then there will be less electricity in use but this depends on your usage pattern, we currently have four at home but our base load is currently 400-500w and that's two PCs and two laptops as well as lights, fridge, freezer etc. If you are at home then the only real impact will be anything with an element e.g. oven/shower/dryer/washing machine etc and the majority of these should be on during night rate. The weather has a huge part also, yesterday was gloomy from the word go so our generation was 2.8kWh with nothing to hot water, on March 1st I put 9kWh into the water as it was a great day...
hold my beer wrote: » I'm looking to put PV panels on a new build in Dublin. Where do I start? Anyone any recommendations for suppliers?
