I'm thinking about going all-in on a solar system, since the federal tax credit applies to RVs that are considered second homes, and I'd like to be self powered in many cases when in the RV. Also, a big driver of this: when parked at home, I want the RV to supply power to my Telsa for charging, deleting that ~$60/month expense from my home's electric bill. Ideally, it would be nice to export all excess power to the house, and perhaps the Schneider can do that, but I would be happy with providing all or some of the electric need of the Tesla (Tesla plugged into RV).
Here's what I am considering:
inverter: Schneider XW Pro 6.8 kW, 48v
integration: Schneider insight home
mppt: Schneider Mppt 100 | 60
battery: 2 x EG4LLv2 ~10 kWh
solar: 32 x Newpowa 100w compact 12v solar panel
engine charging: 2 x 24->48VDC 1kW chargers, either MeanWell or DayGreen
This would be replacing a 24v based system with 2 x 4kW Trace inverters and 8 x 8D lead acid batteries (no existing solar). These inverters still work fine, and I would probably sell them to someone who wants to maintain that setup in their RV (very common amongst Prevost bus conversions).
The RV is a 2001 Featherlite Vantare, and includes a 17.5 kW generator, which I will want to maintain auto start/stop. Not yet sure if I need the Schneider start/stop module. My roof is mostly clear, having no rooftop AC. The solar layout would be three rows, left, middle, and right, with occasional breaks in the row of panels for things like vents, etc. Panels wiring would be 4S8P. Min temp VoC would be 89.7v, but it looks like I might be right at the max for Amps.
Having 240v split phase is important to me, as I intend to replace older AC systems with 240v mini-splits.
Technically, the new inverter has less constant kW, but in practice, I think it will be better, because it handles load imbalance much better, and as I move to mini-split heat pumps, the electrical demand will be lower. Worst case I stack another later, but I highly doubt that will be necessary.
I might consider 3 of the EG4LL instead of 2, just to be sure I have enough current for peak loads, and I'd like to be certain I can go overnight in the hottest of conditions (where I'd likely use the most energy) without starting the generator.
I do need to work out when the 24->48v chargers are enabled/disabled. These will provide charging from the coach's 24v engine system (4 lead acid, 2 alternators, >300 amp @24v). Not sure if I can just have these always enabled when the engine is running, and set a target voltage such that they never over-charge, or if I should do something more sophisicated and build some kind of controller that monitors battery current and kicks these on when needed. Most of the time, the solar PV is probably going to be sufficient, but there would be times it would not be.
Any feedback is greatly appreciated, thanks!
Here's what I am considering:
inverter: Schneider XW Pro 6.8 kW, 48v
integration: Schneider insight home
mppt: Schneider Mppt 100 | 60
battery: 2 x EG4LLv2 ~10 kWh
solar: 32 x Newpowa 100w compact 12v solar panel
engine charging: 2 x 24->48VDC 1kW chargers, either MeanWell or DayGreen
This would be replacing a 24v based system with 2 x 4kW Trace inverters and 8 x 8D lead acid batteries (no existing solar). These inverters still work fine, and I would probably sell them to someone who wants to maintain that setup in their RV (very common amongst Prevost bus conversions).
The RV is a 2001 Featherlite Vantare, and includes a 17.5 kW generator, which I will want to maintain auto start/stop. Not yet sure if I need the Schneider start/stop module. My roof is mostly clear, having no rooftop AC. The solar layout would be three rows, left, middle, and right, with occasional breaks in the row of panels for things like vents, etc. Panels wiring would be 4S8P. Min temp VoC would be 89.7v, but it looks like I might be right at the max for Amps.
Having 240v split phase is important to me, as I intend to replace older AC systems with 240v mini-splits.
Technically, the new inverter has less constant kW, but in practice, I think it will be better, because it handles load imbalance much better, and as I move to mini-split heat pumps, the electrical demand will be lower. Worst case I stack another later, but I highly doubt that will be necessary.
I might consider 3 of the EG4LL instead of 2, just to be sure I have enough current for peak loads, and I'd like to be certain I can go overnight in the hottest of conditions (where I'd likely use the most energy) without starting the generator.
I do need to work out when the 24->48v chargers are enabled/disabled. These will provide charging from the coach's 24v engine system (4 lead acid, 2 alternators, >300 amp @24v). Not sure if I can just have these always enabled when the engine is running, and set a target voltage such that they never over-charge, or if I should do something more sophisicated and build some kind of controller that monitors battery current and kicks these on when needed. Most of the time, the solar PV is probably going to be sufficient, but there would be times it would not be.
Any feedback is greatly appreciated, thanks!