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  Reply # 1861539 9-Sep-2017 20:19
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most of the hybrid ones i have looked at for battery systems give the same output as the input from the solar panels, so anywhere from about 4.8-6kw. most will allow about up to 7.5kw for a short period (10-60 seconds)



Have you checked if that is for offgrid (blackout mode), or only for on grid? As alot of the battery systems can only output at max capacity while the grid is connected. With offgrid power only being available from a separate connection that is often restricted to a low max output current. And there are even some systems that can't output anything if there is no grid power present. Sure for some use cases this is perfectly fine, but for me on grid output capacity is of no use to me.


Since my power company doesn't support solar PV, I need to get a system that can't physically export power. Both to maintain safety of people working on the power lines network, and to comply with my power companies terms. And my power company (flick electric) is the only one in Auckland AFAIK that offers a peak/offpeak power plan. So if I switch, I loose the cheap offpeak power. Which is especially good at night.



no thats for both on and off grid, you run a separate switchboard for the off grid stuff so when the power goes out it just runs that switchboard while everything else goes dead.


will run the full input/output of the inverter when the mains are off



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  Reply # 1862343 11-Sep-2017 13:47
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The 600L of hot water storage capacity will be for multi day storage. With the cylinders plumbed in series (I definitely won't use 600L a day of hot water). The current cylinder and new cylinder is/will be installed downstairs.



I had two cylinders in series in my house in Blenheim, with the first cylinder (no element) heated by wetback/solar-thermal via heat exchangers.  Worked really well.



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  Reply # 1862344 11-Sep-2017 13:56
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I've been putting off our own solar installation because I want at least 10kWh of battery storage along with it....and the house isn't built yet that we will install it on. My "perfect" system would be a Tesla (or possibly Monier) solar roof



I was watching a TED interview with Musk yesterday in which he was talking about the solar roof.


Nice looking product (provided you never have to co up on the roof - they look slippery).  The roof tiles are made from glass, which had me wondering how much energy goes into manufacturing them?


As I understand it glass is made by floating molten glass onto molten metal.  Very energy intensive


They look like they will have a very long life, so they have a long time to payback their embedded energy.




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  Reply # 1862350 11-Sep-2017 14:13
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I do wonder about how sustainable solar panels are? What happens to them over time and what is the disposal method? Is producing them a resource intensive process? 




Seems like Solar won't be cost effective for us unfortunately.



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