Panel, battery and controller are the basic components for a solar energy system. Below we calculate the minimum measurements that each device in your system will need.
This schema below shows how each component connects to each other, and finally to a 12V or 24V device, such as a router. You might need a voltage regulators such as a step-up or step-down buck boost, or an inverter to ajust the voltage per device needs.
It’s very important to use appropriate wiring according to the system’s current. Below is a table that provides the values of setup's max current in amps vs cable in milimeters vs distance in meters . More details here.
| 1-20A | 4mm² | 4mm² | 4mm² | 4mm² | 6mm² | 6mm² |
| 20-30A | 4mm² | 4mm² | 6mm² | 6mm² | 10mm² | 16mm² |
| 30-40A | 4mm² | 4mm² | 6mm² | 10mm² | 16mm² | 16mm² |
| 40-60A | 6mm² | 6mm² | 10mm² | 16mm² | 16mm² | 21mm² |
| 60-100A | 10mm² | 16mm² | 16mm² | 21mm² | 21mm² | 35mm² |
Settings
| Daily autonomy | 24 hours per day |
| Sun irradiation time | 6 hours per day |
| Longitude | |
| Latitude | |
| total-hour-consume | 0 Wh |
| Discharge model | 50 % |
| Loss | 10% |
| Selected battery type | 12 V |