I'm looking at the Growatt SPF5000-ES 48V Inverter, but I am going to be living in a van and I can only fit 8 120W pannels which will only give me a Peak Voltage of 144V and the start up voltage for the inbuilt MPPT charge controller is 120V, will this be problemic espically considering I live in the UK where the vast majoirty of the days in the year I will not have ideal soalr conditions. I know I can just buy an indevidual MPPT charge controller, but it just seems like a waste.
And yes I know the 0 load power conumption is about 60W I only intent to run the induction hob, air fryer and active fryer off the inverter when not using those applience I mean to turn off the inverter and use a DC-DC 48 to 24V 600W step down converter or 2 with smaller 12 volt converters for appliences that need it, I know I will be losing some efficency for using 2 converters, but using 24V to get almost all the way to the load will reduce the need for lower gauge wire, and 24V 3A veriable stepdown converters can be bought for £10 for a pack of 8, so cost wise it's probably comparable just having a complete 12V system due to wiring gauge, but a 48V battery system allows for greater expansion down the road.
Although unless I move into a house the maxium I intent to expand to is a 6kW inverter, 200Ah 48V batteries and 1920W of solar with half of that being a solar awning which will be stored under the primery solar pannels when not in use, but we will see how we go and expand first if needed and second when I have the money, although at some point I do want a Victron inverter for the low 0 load draw.
And yes I know the 0 load power conumption is about 60W I only intent to run the induction hob, air fryer and active fryer off the inverter when not using those applience I mean to turn off the inverter and use a DC-DC 48 to 24V 600W step down converter or 2 with smaller 12 volt converters for appliences that need it, I know I will be losing some efficency for using 2 converters, but using 24V to get almost all the way to the load will reduce the need for lower gauge wire, and 24V 3A veriable stepdown converters can be bought for £10 for a pack of 8, so cost wise it's probably comparable just having a complete 12V system due to wiring gauge, but a 48V battery system allows for greater expansion down the road.
Although unless I move into a house the maxium I intent to expand to is a 6kW inverter, 200Ah 48V batteries and 1920W of solar with half of that being a solar awning which will be stored under the primery solar pannels when not in use, but we will see how we go and expand first if needed and second when I have the money, although at some point I do want a Victron inverter for the low 0 load draw.
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