Overmind
Member
- Joined
- Jan 16, 2019
- Messages
- 489
I will do a solar system at my folks country place and I'm currently on the research phase.
Desired rating is 2.5-5KWh.
I long-ago established that I will go with LiFePo4 cells of 100Ah, I have a good supplier for such "bricks".
16S of them will make 48V-equivalent. So far so good, this one is settled.
Now I'm trying to figure out what panel and inverter combo to use.
I have a local supplier of panels that are 36V @ 310W.
Another one can give me 5KW MPPT inverter (model HYB5032MN) that supports 40-145 VCC from the solar panel side and the 48V, 117A battery input.
1. It it fine to put like 3x36 V panels in series (please ignore the HV safety issues, let's talk just about the tech part) to power up this 5KW inverter ?
If a panel is shadowed how much will this affect overall charging ? What happens on the current side ?
Is there a better way of connecting ? Should I rather go more parallel ?
2. One more thing I'd like to have is a BMS to control max charge voltage (to set it at 55, 56V whatever I want/need).
Any recommendations for a good BMS maybe with possibility to control settings via smartphone ?
Will such a BMS work good with the MPPT inverter ?
3. Is there anything else needed (excluding the connectivity part) except the panels, batteries, MPPT inverter and maybe a good BMS ?
Thank you.
Desired rating is 2.5-5KWh.
I long-ago established that I will go with LiFePo4 cells of 100Ah, I have a good supplier for such "bricks".
16S of them will make 48V-equivalent. So far so good, this one is settled.
Now I'm trying to figure out what panel and inverter combo to use.
I have a local supplier of panels that are 36V @ 310W.
Another one can give me 5KW MPPT inverter (model HYB5032MN) that supports 40-145 VCC from the solar panel side and the 48V, 117A battery input.
1. It it fine to put like 3x36 V panels in series (please ignore the HV safety issues, let's talk just about the tech part) to power up this 5KW inverter ?
If a panel is shadowed how much will this affect overall charging ? What happens on the current side ?
Is there a better way of connecting ? Should I rather go more parallel ?
2. One more thing I'd like to have is a BMS to control max charge voltage (to set it at 55, 56V whatever I want/need).
Any recommendations for a good BMS maybe with possibility to control settings via smartphone ?
Will such a BMS work good with the MPPT inverter ?
3. Is there anything else needed (excluding the connectivity part) except the panels, batteries, MPPT inverter and maybe a good BMS ?
Thank you.