Hi There,
I've recently been looking at making a power wall for my home. I currently have 3kWp of solar on the roof grid connected through a SolarEdge inverter getting paid for generation.
I'd like to add a battery to this system so that during the day I can charge my pack up and then when the sun goes down, I can power my house. I also have an Economy 7 meter which means that during the night my electricity is half price, so during the winter I can charge the pack up over night when electricity is cheap and then use it in the daytime.
I'm planning on buying new cells as I haven't got the time/patience to hunt down enough second hand batteries. I will probably buy 1000 LG MH1 or Samsung 33G cells which come in at 2 - 2.30 per cell including shipping. I will make 64P packs giving 64P14S final solution (I'm using the rest of the cells for some smaller packs). So it will be about a 9kWh pack.
I have been looking at using the PIP-HS 5048 inverter for this project, but i can't work out if it will work? Can someone who has used this inverter help? The arrangement I'd like to have looks like the circuit diagram shown below:
What I'd like to be able to do is use an emonPi energy monitor to monitor my generation/usage and control the PIP-HS 5048 to either charge the batteries or discharge depending on the load. Is this possible? I'm imagining I write a PI controller in the emonPi that gives a power demand to the PIP-HS 5048 based on the current load.
As you can see I also plan to use the Batrium BMS as many others do.
I would very much appreciate some advice on this build. From what I understand about the PIP-HS 5048 this isn't possible, however when I emailed the supplier they said it was... I think I need to put all my loads on the output of the inverter. However this would limit my usage to 5kVA as the inverter is rated at that. I have a 10kW electric shower so that wouldn't work.
It looks like there are other products out there that would work (SMA etc) but they are 2k+ compared to the 488 of this PIP-HS 5048.
Regards,
Greg
I've recently been looking at making a power wall for my home. I currently have 3kWp of solar on the roof grid connected through a SolarEdge inverter getting paid for generation.
I'd like to add a battery to this system so that during the day I can charge my pack up and then when the sun goes down, I can power my house. I also have an Economy 7 meter which means that during the night my electricity is half price, so during the winter I can charge the pack up over night when electricity is cheap and then use it in the daytime.
I'm planning on buying new cells as I haven't got the time/patience to hunt down enough second hand batteries. I will probably buy 1000 LG MH1 or Samsung 33G cells which come in at 2 - 2.30 per cell including shipping. I will make 64P packs giving 64P14S final solution (I'm using the rest of the cells for some smaller packs). So it will be about a 9kWh pack.
I have been looking at using the PIP-HS 5048 inverter for this project, but i can't work out if it will work? Can someone who has used this inverter help? The arrangement I'd like to have looks like the circuit diagram shown below:
What I'd like to be able to do is use an emonPi energy monitor to monitor my generation/usage and control the PIP-HS 5048 to either charge the batteries or discharge depending on the load. Is this possible? I'm imagining I write a PI controller in the emonPi that gives a power demand to the PIP-HS 5048 based on the current load.
As you can see I also plan to use the Batrium BMS as many others do.
I would very much appreciate some advice on this build. From what I understand about the PIP-HS 5048 this isn't possible, however when I emailed the supplier they said it was... I think I need to put all my loads on the output of the inverter. However this would limit my usage to 5kVA as the inverter is rated at that. I have a 10kW electric shower so that wouldn't work.
It looks like there are other products out there that would work (SMA etc) but they are 2k+ compared to the 488 of this PIP-HS 5048.
Regards,
Greg