Hey folks, new to this forum so not sure where to ask this but there seems to be many intelligent people on here so any help would be appreciated.

I own a creek hut with its main source of power being a petrol fuelled 2kva genorator. I have whipped up some calculations and would just like advice on how to optimise my system.

I wish to run a 700w appliance for 20 hrs each day 240v. That will use 14kw over a 20 hr period. Here in North qld we get around 4-5 hrs solid daylight and 2-3 low intensity however it varies between summer and winter. I plan to use a 12v battery system with a 12v-240v 1000w inverter.

14kwh / 4 hours sunlight = 3.5kw system

80% efficiency so a 4.5kw system is needed.

10x 150aH 12v deep cycle AGM batteries = 18kwh of battery

Will i need to include a 50% discharge on this so x20 batteries? or will the constant draw of power allow maybe for 60-80% discharge?

Is it correct to assume 700w ac will draw about 70amps dc?

How many solar panels can be connected parralel? Will it be dependant on my charge controller amperage capacity?

Are there any reccomendations or items I must add?

Thanks all😊😊😊

I own a creek hut with its main source of power being a petrol fuelled 2kva genorator. I have whipped up some calculations and would just like advice on how to optimise my system.

I wish to run a 700w appliance for 20 hrs each day 240v. That will use 14kw over a 20 hr period. Here in North qld we get around 4-5 hrs solid daylight and 2-3 low intensity however it varies between summer and winter. I plan to use a 12v battery system with a 12v-240v 1000w inverter.

14kwh / 4 hours sunlight = 3.5kw system

80% efficiency so a 4.5kw system is needed.

10x 150aH 12v deep cycle AGM batteries = 18kwh of battery

Will i need to include a 50% discharge on this so x20 batteries? or will the constant draw of power allow maybe for 60-80% discharge?

Is it correct to assume 700w ac will draw about 70amps dc?

How many solar panels can be connected parralel? Will it be dependant on my charge controller amperage capacity?

Are there any reccomendations or items I must add?

Thanks all😊😊😊

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