Hello ill put here all my stuff in like requestet in the FB group.
I recycled 630 Laptop Batteries and got 12 kwh capacyty out.
A few month ago i made how i celect the good from the bad cells.
This was my test setup... at the end i gave a short view where the journey should go to.
Since October 2016 im at the next waypoint. Solar power inverter communicates with the grid electric meter and the Battery grid inverter.
The batterie inverter is only connectd to one phase but can accommodate over all three up to 3.4 kw.
In the next view Days ill install Stage 3 witch will add 4 kwh capacity and enable the system to run 100% power 3,4 kw charge from solar and 3,4 kw discharge to my home if needed. At the moment i limited to 2,5 kw charge and discharge. this prevents the cells to get hot. The highest Temperature i have seen was 27 degree. In theory this hybrid setup will make my house independent from grid from March to September.
Here a short view to the setup
Here are more details to the GTI
SMA Sunny Island
and the no up to 16sBMS from REC
REC BMS
In the Cabinet i have space for one more 4kwh upgrade to 16 kwh.
The efficiency i calculated is 79,5 %. This Solar Panlel DC -> GTI -AC -> Battery GTI -> AC -> Battery DC , Battery DC -> house AC is not perfect but for me the best way to go.
I recycled 630 Laptop Batteries and got 12 kwh capacyty out.
A few month ago i made how i celect the good from the bad cells.
This was my test setup... at the end i gave a short view where the journey should go to.
Since October 2016 im at the next waypoint. Solar power inverter communicates with the grid electric meter and the Battery grid inverter.
The batterie inverter is only connectd to one phase but can accommodate over all three up to 3.4 kw.
In the next view Days ill install Stage 3 witch will add 4 kwh capacity and enable the system to run 100% power 3,4 kw charge from solar and 3,4 kw discharge to my home if needed. At the moment i limited to 2,5 kw charge and discharge. this prevents the cells to get hot. The highest Temperature i have seen was 27 degree. In theory this hybrid setup will make my house independent from grid from March to September.
Here a short view to the setup
Here are more details to the GTI
SMA Sunny Island
and the no up to 16sBMS from REC
REC BMS
In the Cabinet i have space for one more 4kwh upgrade to 16 kwh.
The efficiency i calculated is 79,5 %. This Solar Panlel DC -> GTI -AC -> Battery GTI -> AC -> Battery DC , Battery DC -> house AC is not perfect but for me the best way to go.
