My solar layout in Esperyd
This page containts the layout of my solar system in Esperyd. It also contains details about how i process my cells.
Current system consist of:
- 66x 260w solar panels
- 80kWh of LiFePo4 18650 recycled cells -> 4 rows of 16s300p
- 30kWh of Li-ion Laptop 18650 cells recycled. -> 3 rows of 14s80p
- 2 x PCM60x solar chargers. 18 panels in total on those 2
- PIP4048 4kW Inverter with 6 panels
- MPI 10kW Hybrid inverter with 18 + 22 panels
- Batrium BMS for monitoring the system
- Raspberry PI + Grafana for visualization including controlling the inverters
- 100++++ hours of work
More info to come.
To help me out dont forget to use below links to buy usefull stuff that i think is worth checking out! (Ebay links)
MPI 10KW hybrid inverter: https://goo.gl/9NPGMn
MPPT 7210 Charger controller: https://goo.gl/v5DBzP
PIP 4048 from Germany https://goo.gl/OcwzD9
PCM60X MPPT charger https://goo.gl/Z66bgw
Stuff that I also have used in my setup:
- Contactor US 120V version
- Contactor 230V version
- DC breakers 16-63A
- Changeover DIN mounted switch
- ANL fuse (max 32VDC)
- Solar panel cable splitter MC4
- MC4 contacts for solar panels
- MC4 crimper tool
- 230V Volt and current meter
- RS3232 converter for your inverter to Raspberry
- Fuse wire 35AWG/0.2mm 5A
Below information is currently partly updated. Its pending some for the battery layout. To see the full image click this LINK
Current incomming power
This is how it currently looks like. The first image for the electrical part and beneath that the laptop batteries will be. The 2nd image is the main battery bank.
Processing cells
Processing cells is a time consuming task. Whats important when you do process them is that you do it with one and the same type of tester. Do not use 3 different types because that will give you 3 different values.
Example is that Im using my Opus board for testing where i have 10 Opus chargers. (Build video)
The variations in between all those can be up to 10%!! And stuff like temperature and other factors will cause changes too. Also if you start to compare the Opus numbers they may be close to real numbers but at same time way off to other chargers and this is due to how they test. If you want to read more about this just google “Opus review”
I use my numbers from the Opus only as a “number” Where i say that 2000mAh or above is good for my wall. This is something that you yourself need to decide. Why do I say that? Because if you got cells that from start was 3400mAh then 2000mAh may not be working for you since that is a major degradation.
