Buddha Breath wrote: » Thanks Garo. Do you think the inverter setup would be more complicated with 3 strings, or could you put two in parallel on one string and one on the other? Would you need many additional optimisers?
Mickeroo wrote: » Just on this, how common is it for the reputable installers to be willing to plough ahead on a bigger array without planning?
Buddha Breath wrote: » Incidentally, this is a 12 panel system with same roof angle in same part of the country. Installed mid June. To my inexperienced eye those figures seem ok.
garo wrote: » Yes three strings would be an issue. You would need an additional mini inverter or string optimisers. That’s why cost won’t be the same. And having to install three racks instead one. Ask the installers for quotes for various systems and find your sweet spot. Your quote is ok. I got a 4.8kWp system for 200€ more. Once mounts are in place additional panels add only 150-200 marginal cost so are a good idea. If money was no object I would be looking at a 6+10+6 system at least. Most inverters allow significantly higher DC input than their output rating and all your panel would never be producing max at the same time so a 5 or 6 kW inverter would do fine with 7-8kWp panels.
Shefwedfan wrote: » The planning is a load of s**t. My roof is huge so they didnt bother, unless you are trying to fill an entire roof I doubt anyone will ask, especially after the case in Limerick
wexfordman2 wrote: » Is 26 panels not nearly 8kwp ? Is there not a risk of it overloading the 6kw inverter ? I seem to remember there is a risk of the voltage being too high going in to an inverter if you oversize the panels ?
Nuphor wrote: » Happy with my new 4kw + 2.4kwh battery install. Got it installed just before Christmas and New Years. 7,600 all in, but now the installer and the electrician are having a bun fight over some other install that the electrician didn’t finish and the guy is withholding sign off certs for my install until he’s paid by the installer. Absolute nightmare and the installer has been ducking and diving for weeks, meanwhile I’m out of pocket for 3,800.
handpref wrote: » The deadline for the old grant was unfortunately pushed out to The end of February- in your case it should give them time to sort it out- in my case it will make it 18 months waiting for my grant and out of pocket €3800, ducking and diving from the installer has been a record breaking effort- The message people need to take from this is only pay the after grant price and let the installer claim back the rebate. Whilst I’m happy with the summer production winter time is poor and the savings are nowhere near the 70% they advertised. Worst financial experience of my life and by far the most stressful, the money is one thing but the refusal of the company to own up to their obligation has been the most frustrating. So one more month to go.
Mickeroo wrote: » Did you go with next gen power in the end?
Buddha Breath wrote: » Thanks. So would that be 6 East, 6 West, 10 South facing? Would any of the simulation packages the installers use have the ability to calculate these non standard setups I wonder?
garo wrote: » Sorry to hear that! 18 months requires naming and shaming. Fortunately in the new grant system there won’t be cases like yours as grant will have to be approved pre-installed. Have you complained to SEAI? A threat of SEAI deter might help. Also those 70% saving numbers seem ludicrous. Depends on the individual consumption and set up but realistically a 10-15 year payback is what you are looking at.
Buddha Breath wrote: » What's a reasonable installer profit margin on an installed PV system? There seems to be a fair amount of p*sstaking going on from my own experience and those of others based on quotes mentioned in this thread. So based on the costs of running a business, insurance etc, what do people think is an appropriate profit margin? My most recent quote works out at about EUR 2.16 per watt installed, pre grant. To buy the same system myself and pay out 1k to a roofer and sparks would cost EUR 1.45 per watt installed. That's a 4.4kW system with 5kW hybrid inverter and 2.4kW battery. It would be good to know just how much room for negotiation one has! A lot I suspect.
Zardaz wrote: » Did you include: mounting hardware for the panels, wire & isolators, and Vat at 23% on the materials?
garo wrote: » December Predicted: 61.9 Actual: 43.6
garo wrote: » January Predicted: 81.5 (without taking shading into account) Actual 71.0
garo wrote: » January - 71.0
handpref wrote: » January - 83 (5.4 E/W)
championc wrote: » January - 75 (2.7 S)
Winterman1234 wrote: » I recently had a 2.48kw with diverter installed, price after grant €2400 with included BER and I'm sure there are better prices than that. Height and type of roof will effect the price aswell.
Buddha Breath wrote: » Hi folks, has anyone heard of any issues with the pylontech batteries where they need to be set to 80% max discharge to perform properly? I was told that when set to 90% this can lead to "problems". Not sure exactly what these problems are but this came from a well respected (on this forum) seai installer. Thanks.
