The most common question we get: "Will solar be enough to run my aircon?" The answer depends on your system size — and the numbers might surprise you.
Using the formula from our quotation tool:
5.5 kWp × 4.5 hrs × 85% = ~21.0 kWh/day
| Appliance | Power | Daily Hours | kWh/Day |
|---|---|---|---|
| Inverter Aircon 1.5HP | 900W | 8 hrs | 7.2 kWh |
| Refrigerator 2-door | 100W avg | 24 hrs | 2.4 kWh |
| LED Lights ×20 | 8W each | 8 hrs | 1.28 kWh |
| Smart TV 65" ×2 | 150W each | 6 hrs | 1.8 kWh |
| Washing Machine | 500W | 1 hr | 0.5 kWh |
| Rice Cooker + Kettle | ~1,600W | 1 hr | 1.0 kWh |
| Laptops ×3 + WiFi | 190W total | 8 hrs | 1.52 kWh |
| CCTV 8-camera | 60W NVR | 24 hrs | 1.44 kWh |
| Total Daily Load | ~17.1 kWh | ||
A 5kW system produces ~21.0 kWh/day — that's 3.9 kWh surplus that can charge a battery for nighttime use or export to the grid via net metering.
A typical 4-5 bedroom home in Metro Manila or Cebu with:
Monthly savings: approximately ₱6,600/month on a ₱8,000 bill. Payback period: 3.1 years.
The formula scales linearly. For a ₱15,000/month bill, a 10kW system covers the same load ratio. Use our free Solar Quotation Tool — enter your bill and it shows exactly which appliances your system covers, broken down by kWh/day.
Engr. Jason Morales — Founder, SolarEnergyPH