Description
Our system has incorporated the following solar controller protection functions:
- Solar cell wrong connection protection
- Load overcurrent and short circuit protection
- Battery open circuit protection
- Battery over-discharge protection
- Night time back charge protection
All charging voltage tests have the “return difference” control function to prevent the switch from going into oscillating state.
This hybrid system of solar power and diesel generator is able to provide higher reliability and lower running cost.
| Solar Diesel Hybrid | Pure Solar | Double diesel generator | |
| Initial cost | High | High | Low |
| Running cost | Low | Low | High |
| Maintenance | Median | Low | High |
| Fuel cost | Low | N/A | High |
| Load adaptability | High | Low | Low |
| Pollution | Median | Low | High |
| Noise | Low | Low | High |
| Reliability | High | Low | Median |
It is also able to effectively reduce the maintenance required for the diesel generator.
Two types of gel battery are available for this solution:
- 2V 350Ah (weight: 24 kg, terminal type: F10)
- 2V 1000Ah (weight: 65kg, terminal type: F10)
Benefits of our gel battery:
- Longer cycling life than common AGM battery
- Longer floating charging life
- Maintenance free
- Designed for frequently and deeply discharging in solar power system
Reference implementation sites:
i) China Mobile’s base station in XinJiang
ii) China Mobile’s base station in Qinghai
iii) China Mobile’s base station in Tibet
