unkel wrote: » Indeed, Mr Spoilsport Most of my production is going straight back into the grid, gaining me nothing. For the greater good. Reducing our overall emissions and reducing the fossil fuels we are burning to produce electricity. If only every house and every office building would produce more electricity from solar than they use, just like me...
rolion wrote: » After giving away a good portion of the exceeess electricity produced by your hard earned cash PV panels, after 1 year...you went soft and slow and gave up... just happy to give away for free... Love it @unkel ! Now,just i go and take a cup of coffee and search for the threads where "everyone of us" was angry for lack of FIT progress...
unkel wrote: » A reasonable FIT is win win for all parties. Home / business owners get a reasonable return on their investment and for the government it's an extremely cheap way to increase the capacity of the grid (which is needed as more and more stuff gets electrified)
gally74 wrote: » fit will come.........
rolion wrote: » With no intention to offend you guys... how much you wanna bet "today" that we will not have FIT on these lands !?? Ive generated 10MWh, giving away 2.5MWh for which someone got paid for... why change it !?
KCross wrote: » ESB have no interest in it and will resist it to the bitter end. The only hope is the EU dictating it, which is quite possible.
Simona1986 wrote: I have got a much more reasonably quote since (although for a smaller system) so I'll update this thread this evening
unkel wrote: » One megawatt hour produced since my current system was installed in February. Not bad :cool: System is expected to produce nearly 4MWh per year. The average Irish household uses 3.5MWh per year
Stefs_42 wrote: Massive thanks to niall for providing me with details of most competitive PV installer in Ireland!
unkel wrote: » PM me as well please. Is it the one I mentioned previously?
unkel wrote: » Cheers Stefs_42, PM received. It was indeed the installer I mentioned before. I contacted all solar PV installers on the SEAI approved list and he was the only one who came back to me with a reasonable quote and also the only one who engaged with me in a meaningful discussion, someone who knows his stuff well. I mentioned him in my thread here (with moderator approval):Linky
Mr Q wrote: » It is a NIBE. They do sell solar kits too but not here that i know of
KCross wrote: » I have a Nibe. When I spoke to them last Aug they told me that it could only use the Solar power to heat an element for DHW... in effect a diverter. They did say they were working on a new system but ultimately you can’t really use Solar to drive a HP because stopping and starting a compressor as the clouds roll over will trash your compressor in short order. It can only be used really as a diverter to drive the backup immersion of the HP. Unless they have some new product out that works differently?
Mr Q wrote: » I was looking at an EME 20 which in some of the documents states it can heat and cool the house with the solar excess. This is why i assumed it is using the heat pump and not the element directly. But the compressor start/stop issue is a good point. Did you speak to NIBE directly or the Irish distributor? I am finding it difficult to get an definite answer on parts of this.
KCross wrote: » I spoke to the Irish distributor. You would need a massive Solar array to drive a HP with the excess. Most HP's would need ~2kW+ to run. How many hours of the day would you have that excess and the elephant in the room.... the hours when you do have that excess is largely in summer when you dont need the HP at all other than to heat water.... i.e. diverter! SolarPV excess and HP's are not a good match unless there is some new type of compressor that can take low rates of power. I cant see how it would work at the times you need, without pulling expensive day rate electricity when the clouds roll over and crucially without over-cycling the compressor giving it an early death. I'd need alot of convincing to connect SolarPV to my HP compressor.... you dont want that to die early in its life for a few measly euro's worth of electricity.
Evd-Burner wrote: » With say a 4kw array with 4.8kwh worth of batteries would it not be better to just time the heatpump to come on during say mid April to mid October for a certain time of the day? The time could be adjusted depending on the month Basically when you know the batteries are almost full and at a time during the day when there is still usually sunlight that the heatpump will come on, it won't pull anything from the grid in that case and will instead pull from the batteries if needed. Depending on the day the batteries would likely have time to still charge. I reckon I could write a script to do it (activate a relay that calls for heating the thermal mass), just don't have any of the equipment or data yet :P
KCross wrote: » A simple diverter, which is what Nibe offered me last year
Mr Q wrote: » Did they say if this would just heat DHW or on a sunny but cold day also heat the house via rads of UFH? Did you add anything along these lines to use the excess or go for a battery in the end.
KCross wrote: » All they had available last year was a diverter which sensed what was available from the SolarPV and it diverted that to an element in the tank.... nothing else. It would not heat the underfloor. He did say he was travelling to Sweden to see some new Solar integration thingy that Nibe were working on but I didnt get any subseuqent info on that. I think their plan was to provide Solar panels themselves and have some tighter integration built into their HP's but I dont have the fine detail.
Neil. J. F wrote: » Hi, I got a quote a few days ago from a well known home improvement company that have recently (March) started doing solar pv. They were the only one of the three installers that I got quotes from, that called to the house. The quote I got was for the installation of a 3kw 10 panel system with a 4.5kw battery plus immersion diverter. Cost to me €8.5k after grant. The hardware looks good, 20 year guarantee on the panels and 10 year guarantee- 6000 cycles on the battery We have a night saver meter and last year we used about 1500 day units and 800 night units. We'd like to do our bit for the environment but I would also like to at least break even over the 10ish years before the battery needs to be replaced. We'd be doing an East West split and they informed me that I could expect in the region of 2200kwh per annum from the system v 2700kwh if we had a South facing roof. My own calculations suggest that the system would need to provide at least half of the night units plus some day units as well in order to pay for itself over the first 10 years anyway? I also have a worry about compromising our 60 odd year old tiled roof during the rail instillation. My question to the group is, am I likely to loose or gain in the long run? Thanks folks!
