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Thanks for this very informative video. Very detailed. Much appreciated

Excellent video. Thank you for creating.

Hey I go to that school

It would be cheaper to add more panels later IF your PV is on the ground. Could you not plan and get certified for a larger array now but not install the full array now so adding power later. Will the future addition of smartmeters by the ESB mean you get a power logger and could be used to do the estimate later. You could set up an off-grid backup to power lighting/some heat/water pump/fridge/phone charger and then when the power returns to recharge the battery storage.

Would it not be better to have dual thermal and PC systems as house heating is often the biggest energy drain? How much extra (as a typical %) does microinverters cost over one inverter (on a 2KW array) and as noted would you have to replace each inverter within the 25yr lifespan? Why are you recommending (apart from PP for just 7 panels) just a 2KW array when thats less than 50% of customers typical demand (and that 50% I presume is optimum generation). Your return of 8.8yrs does not include the Install cost of the array (and thats with an estimated 4cent spill price). I note your example user has a 3.6KW array...Why not just recommend everyone aim to meet as close to 100% of their home use as possible as the install labour cost will be minimally extra, payback will be lower, the xtra panel costs not double and the PP cost (presuming no objections) not much additionally. Might be better to ask installers how much lower the install cost of a 7/14panel install has cost year year. If the spillover is 15% then would that not be better to add any battery storage or would dumping it on a water heater offer a better return.If your demand is lower then would it be better not to have a smaller system and storage vs a larger array or a larger array and avail of the water heat bonus (which cuts your water heating cost)

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