Hybrid Solar with Battery Backup
When to Choose Hybrid vs On-Grid
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Frequent power cuts in your area → Hybrid is best
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Need uninterrupted power for essentials (AC, Fridge, Fans, Lights, Wi-Fi, CCTV)
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Want savings and backup together
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If your grid supply is stable → On-Grid is more cost-effective
Battery Options & Sizing
Lithium (LFP) – Preferred (long life, fast charging, compact)
Lead-Acid/SMF – Lower cost, higher maintenance
Sizing Rule of Thumb:
1 kW load backup for 4 hrs ≈ 48V 100Ah LFP battery
5 kW load backup for 6 hrs ≈ 48V 200Ah LFP battery bank
Backup Runtime Examples
| System Size | Battery Bank | Typical Backup Load |
|---|---|---|
| 3 kW + 5 kWh | Lights + Fans + TV | 4–6 hrs |
| 5 kW + 10 kWh | Lights + Fans + 1 AC | 5–6 hrs |
| 10 kW + 15 kWh | Full Home (Multiple ACs) | 4–5 hrs |