Panels need light. So what happens when the sun goes down in Port Harcourt, Warri or Yenagoa?
The day-night cycle
| Time | Panels | Battery | Your home runs on |
|---|---|---|---|
| Morning | Starting | Charging | Panels |
| Midday | Strong | Filling up | Panels |
| Evening | Stopping | Starting to drain | Battery |
| Night | Off | Draining | Battery |
| Low battery | Off | Near empty | Grid / generator (hybrid) |
The battery is your night power
Everything you use after sunset comes from the battery. Lights, fans, TV, fridge, AC.
How to have enough night power
- List your night loads. Read how to calculate your load.
- Size the battery for those hours. Read how long your battery lasts.
- Size the panels to refill it the next day, even in rainy season.
Make the night cheaper
- Iron, wash and pump in the day.
- Use LED lights and inverter ACs.
- Set the AC to 24–25°C.
