quentingargan wrote: » I am told it happens for a while, but should be OK by now. The battery BMS will always overrule the firmware on the inverter (or it should) to ensure long battery life. It happens when batteries are cold, or if they go over 51V in the case of Pylon
unkel wrote: » As you can imagine, this works with the myenergi family of products too. PV should go to house first, then any excess to battery, then to car (Zappi), then to immersion (Eddi), any left overs then go to the grid
quentingargan wrote: » You can use any domestic heater or storage heater. You will need to use a relay to redirect the surplus to the second heater. You need the coil of the relay powered via a thermostat.
GaryCocs wrote: » There was a limit of 10A set on the batteries all right. I went in to change in the inverter but it never saved the change for some reason. Did some testing over the weekend. So the battery was charging away taking the excess up to 500W, if the excess above that was >= 1400 then the zappi would kick in which meant the inverter thought that was the load the house required so the battery stopped charging
niall_eidw wrote: » Guys, I have been interested in deploying Solar since about 2002. Back then there was a Solar show on in Lord Edward St, Dublin. Unfortunately at the time the only people promoting Solar were German nationals living in the West of Ireland. I believe that Solar is a lifestyle choice and I’m not trying to be namby pamby about it. What really annoys me is the fact that Solar has always been promoted on the basis of ROI. I believe that this argument is fundamentally wrong and gives rise to false expectations. For instance you can go onto Apples website and but a laptop for over €3,300.00 or into DID and buy a Samsung TV for €5,750.00. Nobody is jumping up and down about the ROI here. The people who want and buy Solar seem to have a grasp of what it will do for them and their future. I hope that those arguing over ROI can see beyond that, for instance maybe in the future the cost of Electricity or Gas will incrase, or the ESB can no longer generate power from fossil fuels, who knows… Honestly I’m not a tree hugger… But I'am getting close to Solar implementation..
unkel wrote: » Well said, niall_eidw. Thankfully, solar PV is now so cheap, everyone should really plaster their roofs with it imho.
conor_mc wrote: » *Half* their roof!!
Rodstar028 wrote: » Quote received for 4kw panels and 2.4kw pylontec battery plus water diversion unit panels are 300w monocristalline and inverter is solis price 9000 incl vat fitted and commissioned how would that seem or quote 2 with 3kw of German crystalline panels with 5kw inverter and 5.8kw battery plus 3kw diverter for 10596 incl vat I have not much knowledge of this but to help have esb bill of 180 per two months and want hot water from april to end of September with system. Which is better option. Reason for bigger inverter was for future addition of panels your comments or advice would be welcome on next step
wexfordman2 wrote: » 6kw solar, 5kw hybrid inverter, 5kwh battery, ber assesment and hot water diverted +2k inc vat before grant, so cost of 8,200
KCross wrote: » Not looking for an argument but why havent you done it yet? Whats holding you back? Its the money, right?!... i.e. ROI?! I think we are all getting closer to having Solar PV.. but not at any cost. It has to make some sense financially.
Yew wrote: » I'm new to Boards.ie. I have a small semi-d in Galway with a suitable south facing roof but only enough area for 7-8 panels and very in solar pv for the purpose of reducing BER now at C1. I have received quotations from an installer in Cork for 2.4kwp 8 panel system, with ? premium van der valk mounting for 4096 (inclusive 1400 grant and VAT). Pricey? Any concern about post install roof issues, leak etc? Another installer in Dublin has quoted 4220 for 8 panels excluding VAT, excluding grant which works out to 3389 inclusive VAT and grant. From what I've read on this thread and my own enquiries, the installer for kceire and wexfordman2 (thank you) are about the lowest? I plan a minimum (panel prices on the down trend) SEAI compliant panel install and piecemeal Eddi, Zappi, battery upgrade, perhaps DIY, how hard can it be? I'm new to Boards.ie. I have a small semi-d in Galway with a suitable south facing roof but only enough area for 7-8 panels and very in solar pv for the purpose of reducing BER now at C1. I have received quotations from an installer in Cork for 2.4kwp 8 panel system, with ? premium van der valk mounting for 4096 (inclusive 1400 grant and VAT). Pricey? Any concern about post install roof issues, leak etc? Another installer in Dublin has quoted 4220 for 8 panels excluding VAT, excluding grant which works out to 3389 inclusive VAT and grant. From what I've read on this thread and my own enquiries, the installer for kceire and wexfordman2 (thank you) are about the lowest? I plan a minimum SEAI compliant panel install and piecemeal Eddi, Zappi, battery upgrade, increasing panels later. (perhaps DIY, how hard can it be?)
denismc wrote: » Installing a diverter only makes sense if you have someone using lots of hot water during the day or if you have a large hot water tank to store all your hot water, a standard 120lt cylinder only needs 3-4 kWh to reach 60C, and then the rest of your surplus will get exported.
denismc wrote: » I had 8 panels (2.1kWp) installed last year for just 3200, this was before the current grants were available, from your quotes it looks like installers are just using the grant to bump up their prices. Regards leaking roofs I have had no issues and I haven't heard of anyone complaining of such. You mentioned that your BER is C1, I would have thought investing in improving the heat retention of your house a better use of your money. Installing a diverter only makes sense if you have someone using lots of hot water during the day or if you have a large hot water tank to store all your hot water, a standard 120lt cylinder only needs 3-4 kWh to reach 60C, and then the rest of your surplus will get exported.
unkel wrote: » And only if you have a medium or large PV setup. Minimum 3-4kW for it to make any financial sense at all (provided you already have an efficient oil or gas boiler in the house) If you are getting the €600 subsidy for a car charger, a smart charger like a Zappi (€585 + install costs) makes a lot more sense than an immersion diverter
Stefs_42 wrote: » yes heat loss is a big thing! BER can be easily improved by pumping walls and replacing windows from single, to double glazing, who can afford to tripple changing your boiler to newer model also helps. I for instance flushed away about 6 grand 8 years ago into my house and bumped my BER from D to B2. Now with PV install hoping to bump it to A
unkel wrote: » Heating your water however can be done with gas or oil which costs only 4c/kWh and you would have to pay for a solar diverter, which does not attract any subsidies (unlike a home car charger for which you will get €600 subsidy)
Evd-Burner wrote: » When I finally have my own place (hopefully this year) I'll start looking at what is feasible etc. I have an electric car already so I would likely sell it to the missus to get a grant and put the zappi in. I got my leaf second hand before the grant came out. If I go solar I'd hopefully go for about 4kwh on the roof and backed up with either 2.4 or 4.8kwh worth of battery. I was thinking of doing some scripting that can pull data from the inverter, battery and zappi (not 100% on data pull from zappi yet), depending on the time of year and daylight hours id use a controllable relay to power on and off the immersion. As I can't control the power I would end up using the battery but I'd put in triggers to turn off the relay if the battery went below a certain threshold etc. The relay would only cost about 50 or so and the brother is an electrician so he could fit it. What do you think?
wexfordman2 wrote: » The relay control of your immersion has it's limits compared to commercially available units.like the eddi. The problem.with your relay solution, is that in the on state, your immersion will draw full power, say 3kw, so you would need to manage your relay to switch in when you are generating an excess of 3 kw. If you are only generating an excess of 1.5kw, then it's either wasted back to the grid, Or you draw an additional 1.5kw from the grid to power your 3kw immersion. A system like the eddi, only pushes your excess to your immersion,.so if you are producing.only 1.5kw excess, it will send just that 1.5kw to.the immersion. I like the idea of.scripting some smart control, I run an openhab system in my house controlling lights add, and would love to pull in inverter and battery data to put some.level.of.control on appliances etc based on excess power and battery status
