AidenL wrote: » That’s a great saving. I’m wavering in whether or not to go ahead, but your detail, along with wexfordmans is very convincing. The SEAI payback calculator was putting me off. Did you have it installed in September?
quentingargan wrote: » there is a current limit typically of 1.2kw per battery
unkel wrote: » That's a good point. I was looking at the Pylontech US2000 (2.4kWh) recently - probably the most commonly one used and it is only rated for 25A, so indeed at 48V nominal pack voltage you can only charge or discharge at 1.2kW maximum This means that on a medium to large array, a lot of your production is going to the grid unused. And when you put on the kettle in the evening time, even with a full battery, most of the electricity for that will have to be bought from the grid I wonder if anyone is installing a lead acid battery pack under the grant scheme? For the €2.5k your 5kWh lithium battery costs gross, you could have a 25kWh lead acid batttery
wexfordman2 wrote: » 25a max discharge seems quite low ? I think mine is rated at 60a (5kw battery)
unkel wrote: » It's per battery as they are connected in parallel if you have more than one. So with 2 * 25A we're talking 50A or 2.4kW for two of these Pylontechs What's the make / model of your battery again?
unkel wrote: » In an IPS65 box, nice! This is a bad letdown in the Pylontech range, that can only be installed indoors or if you have a dedicated waterproof box for them. That said, if installed outdoors you don't want them to get too cold when charging or discharging. Yours installed outdoors? A quick google doesn't come up with a spec sheet either. Do you have a link to one?
wexfordman2 wrote: » Here 8s a link to specs.https://www.google.com/url?sa=t&source=web&rct=j&url=https://exhibition.edie.net/__media/libraries/brochures/F124DB1C-5056-B753-A7C3F674631B5DDA-document.pdf&ved=2ahUKEwjlt--8iNjhAhVfShUIHd4ZAFkQFjACegQIAxAB&usg=AOvVaw3LAXUQ2ORjwQG379OwIdYF&cshid=1555540738013 Mine is installed in attic just above stairwell, all wall mounted
unkel wrote: » Yep looks like 60A charging for the whole range from the smallest 2.5kWh battery to the biggest (yours) at 5.6kWh For the smallest one that still represents less than 1C charging. My EV can charge at nearly 3C and has a lifetime unlimited warranty on the battery in the USA. So 1C seems more than safe and I doubt temps will be an issue with an indoors install. Another big plus over the Pylontech batteries imho No mention of any EN50438 in the certs section though, which is "interesting" as it was installed under the SEAI grant scheme. You did get your grant back already, did you?
unkel wrote: » Keep us updated!
AidenL wrote: » My bill annually is approx 1600. If I spend 7 to 8k net on PV, the payback based on SEAI is heading way over 15 years. What am I missing here?
niallers1 wrote: » What size system is that for. Would think that you would half your bill so that would make it about 10 years not allowing anything for the usual 5% increase in electricity prices each year. 4.2kw PV with 4.8kwh lithium batteries should cost about 6k net of grant.
phester28 wrote: » If a 300w panel is 1 x 1.67 then if I'm right you can only have 7 panels before you hit the 12 square meters and require planning application for any further panels.
Brecken Tart Newscast wrote: » Guys would it be an option to have some tubes for hot water and then PV for power? Would a diverter/ inverter be needed in this case?
unkel wrote: » That's right, 7 panels max. I'm not sure if the SEAI installer is supposed to check if you have planning permission before install as part of the grant terms and conditions.
unkel wrote: » Of course you can! That's what I have. Tubes system is worked by a controller that checks temps on roof, on bottom of cylinder and on top of cylinder. Based on various settings it decides to turn on the pump that takes the heated glycol from the tubes through the cylinder to warm up your water PV panels are connected to an inverter that is connected to the grid. A bit over the top, but you could still install a diverter that heats a coil in your cylinder if you produce more electricity than you consume
Brecken Tart Newscast wrote: » Guys would it be an option to have some tubes for hot water [
Brecken Tart Newscast wrote: » Can you give us a breakdown of your setup and cost?
daheff wrote: » whats the payback on the tubes heating water?
Kerryman3 wrote: » Hi all, First quote the other day which I think a bit high, what do ye all think? I have east west split , 1050 sq ft 3 bed semi d, 140 Litre hot water tank and gas boiler can heat rads and water. Details were- 10 x Denim 300Wp All-Black Mono Crystalline PV Module with 35Years Production and 35 Years Product Warranty. i.e 3kW system. • 1 x Solis 3.6kW Single Phase Grid Tied Hybrid Inverter • 1 x 3.5kW Pylontech Li-Ion Battery • 1 x 3.0kW Power Diverter (For Hot Water) • 1 x Santon Fireman Switch • 1 x Electrical Materials, Fuses, etc... • 1 x Full Install, Grid Commission and SEAI Grant paperwork’s handling. • 1 x Solis Wifi kit and Free Solis Monitoring portal for Life. • 1 x BER Assessment for SEAI Grant + 5 Years Labour Warranty 7,100 cost to me incl vat and net of grant. Only way this can stack up is if materials really top notch I think.
Kerryman3 wrote: » It’s actually your installer too niallers, I thought prices might’ve gone up since you took the plunge but I see from recent posts they are giving better quotes than what I got even in recent weeks so I may get back on to them. Thanks. I also googled the batteries and very little price difference between 3.5 kW and 2.4 kW it seems.
AidenL wrote: » Is 6kw the maximum which can be installed , both panels and batteries?
