OK, so the base or core system is supplied as part of the standard RV build which is:
When connected to 30 amp shoreline the 12v battery will charge and I can use maybe 1 or 2 120v appliances depending on the amperage draw.
When connected to 50 amp shoreline the 12v battery will charge and I can use many 120v appliances.
This means that if you camp the RV on a beach, mountain e,g, no mains, you can;t use any 120v appliances. Obviously I could get an inverter to supply 120v from the 12v battery but to hook the 120v output from the inverter to the RV appliance oulets without a total internal re-wire so I would need to put the inverter 120v output into the one of the shoreline input, but this would cause great inefficiency as the battery would be supplying the inverter which would be supplying the shoreline feed which would try and recharge the battery.
Here's where I want advice, let me tell you my plan and please feel free to throw rocks at it or offer a better solution.
I'm going to leave the RV electrics 'as is' and have a totally separate system that simply feeds the 50 amp RV input as if it was hooked up in a trailer park.
So working back from the RV 50 amp input - this is fed by a 50 amp 10Kw 12>120v inverter - this is fed by the load output from a secondary charge controller - the secondary charge controller is fed by solar panels and as well as supplying the load output it also charges a large secondary battery bank that powers the inverter when solar is insufficient - Finally, I will program an Uno board to act as a volt meter relay so when the secondary (660Ah) battery bank drops to 11.5v the relay will start up a 6Kw 120v input to the charge controller from an electric start gas powered generator which will be shut off when the batteries get to 12.9v.
In theory this should give me 24/7 120v 6-10Kw 50 amp power as long as I have gas for the generator.
Thoughts & comments please.
Cheers
Lee
- 120v 30 amp hookup input
- 120v 50 amp hookup input
- 12v input from tow vehicle
- Charge controller
- 12v battery
When connected to 30 amp shoreline the 12v battery will charge and I can use maybe 1 or 2 120v appliances depending on the amperage draw.
When connected to 50 amp shoreline the 12v battery will charge and I can use many 120v appliances.
This means that if you camp the RV on a beach, mountain e,g, no mains, you can;t use any 120v appliances. Obviously I could get an inverter to supply 120v from the 12v battery but to hook the 120v output from the inverter to the RV appliance oulets without a total internal re-wire so I would need to put the inverter 120v output into the one of the shoreline input, but this would cause great inefficiency as the battery would be supplying the inverter which would be supplying the shoreline feed which would try and recharge the battery.
Here's where I want advice, let me tell you my plan and please feel free to throw rocks at it or offer a better solution.
I'm going to leave the RV electrics 'as is' and have a totally separate system that simply feeds the 50 amp RV input as if it was hooked up in a trailer park.
So working back from the RV 50 amp input - this is fed by a 50 amp 10Kw 12>120v inverter - this is fed by the load output from a secondary charge controller - the secondary charge controller is fed by solar panels and as well as supplying the load output it also charges a large secondary battery bank that powers the inverter when solar is insufficient - Finally, I will program an Uno board to act as a volt meter relay so when the secondary (660Ah) battery bank drops to 11.5v the relay will start up a 6Kw 120v input to the charge controller from an electric start gas powered generator which will be shut off when the batteries get to 12.9v.
In theory this should give me 24/7 120v 6-10Kw 50 amp power as long as I have gas for the generator.
Thoughts & comments please.
Cheers
Lee