RMPowell01
New Member
- Joined
- Feb 27, 2021
- Messages
- 5
Need assistance in taking 2 trailer mounted PV systems and making 1, off trailer, Off-grid system for new cabin. I am not knowledgeable on Solar and would really like some assistance. If anyone is close to Salem Oregon and willing to assist physically or if they know of someone with knowledge in the area it would be appreciated.
I have not be able to locate a wiring diagram for the SCT20. Each trailer has ten 240/250 watt panels, one Midnight Solar classic 250 controller, two 510 amp-hour flooded 48 volt batteries. and two SMA 6048-US Inverters. Batteries may need to be replaced. Currently running EQ on both systems as both systems were dead on arrival.
I do not understand why there are two SMA inverters on each trailer when the SMA says each unit can handle 4kW to 100kW. How many will I need to use on a merged single system?
Will I need to use both Midnite controllers when I merge the systems or a larger single controller? The Midnight has a maximum output of 55 amps at 48V.
On trailer has a Kubota 11kW generator. It is my understanding that one of the SMA inverters controls and auto start feature for the generator. Does anyone know if this feature is providing power to the AC plug on the trailer or if it charging the battery bank?
I know this may be a dumb idea, but I am in the middle having purchase the units. I don't need criticism I need assistance in making it happen.
Example of my lack of knowledge: The following are from the Midnight Controller sizeing tool and I have zero idea what they mean or where to find the information.
Another Newbie
I have not be able to locate a wiring diagram for the SCT20. Each trailer has ten 240/250 watt panels, one Midnight Solar classic 250 controller, two 510 amp-hour flooded 48 volt batteries. and two SMA 6048-US Inverters. Batteries may need to be replaced. Currently running EQ on both systems as both systems were dead on arrival.
I do not understand why there are two SMA inverters on each trailer when the SMA says each unit can handle 4kW to 100kW. How many will I need to use on a merged single system?
Will I need to use both Midnite controllers when I merge the systems or a larger single controller? The Midnight has a maximum output of 55 amps at 48V.
On trailer has a Kubota 11kW generator. It is my understanding that one of the SMA inverters controls and auto start feature for the generator. Does anyone know if this feature is providing power to the AC plug on the trailer or if it charging the battery bank?
I know this may be a dumb idea, but I am in the middle having purchase the units. I don't need criticism I need assistance in making it happen.
Example of my lack of knowledge: The following are from the Midnight Controller sizeing tool and I have zero idea what they mean or where to find the information.
VOC (Open Circuit Voltage) | |
VMP (Maximum Power Point Voltage) | |
ISC (Short Circuit Amperage) | |
IMP (Maximum Power Point Amperage) |
Another Newbie