06/02/2026
This is a simple wiring diagram (real-photo style) showing how a hybrid solar system connects Solar Panels + Battery + Grid (electric pole) + House load using protection breakers (MCB) and a hybrid inverter.
🔌 Main parts in the picture
- Solar Panel (top right): makes DC electricity from sunlight.
- Hybrid Inverter (center): the “brain” of the system. It:
- takes DC from solar,
- charges the battery,
- converts DC to AC for the house,
- can also use grid power when needed.
- Battery (bottom right): stores energy for night time or power cuts.
- Electric Pole / Grid (left): utility power coming from the main line.
- House (bottom left): your loads (lights, TV, fridge, sockets, etc.).
- MCB (Miniature Circuit Breaker): safety switch/breaker that protects against overload/short circuit.
🔁 How the power flows (easy to understand)
☀️ Daytime (sun available)
1. Solar panels produce DC power
2. DC goes into the hybrid inverter
3. The inverter sends power to:
- House loads first (run appliances), and
- Charge the battery if extra solar is available
4. If solar is not enough, the inverter can pull from:
- Battery, or
- Grid (electric pole)
🌙 Night / cloudy time
- Solar is low → the house is powered by:
- Battery first (if charged), then
- Grid (if battery gets low or system is set that way)
⚡ Backup / power cut (if system supports it)
- When the grid is off, the inverter can keep supplying the house from:
- Battery + solar, depending on settings and inverter type.
🛡️ Why the MCB breakers matter
- The MCB near the grid line protects the inverter/grid connection.
- The MCB near the house load line protects the circuit going to the home.
✅ Breakers make it safer to isolate parts during maintenance and reduce fire risk.
✅ Quick tips (real-world safety)
✅ Use correct cable size for solar, battery, and AC output
✅ Add proper earthing/grounding for inverter, panels, and battery
✅ Use DC isolators/fuses (especially for solar + battery lines)
✅ Keep batteries ventilated and away from heat/water
⚠️ Safety note: Solar + battery wiring is high-risk (DC arcs + high current). Use a licensed electrician or follow local electrical code.
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