| Wattage | Best For | Daily Output | Price Range | Use Case |
|---|---|---|---|---|
| 100W | Small electronics, fans, LED lights, phone charging | 0.4–0.5 kWh | ₱1,500–₱3,000 | Camping, small sheds, basic lighting |
| 200W | Refrigerator + lights + TV (partial) | 0.8–1.0 kWh | ₱3,000–₱5,500 | Small apartments, backup lighting |
| 400W | Full appliances: fridge, AC, washing machine, TV | 1.6–2.0 kWh | ₱4,500–₱10,500 | Standard 3BR home (most popular PH size) |
| 450W–500W | High-consumption homes with multiple AC units | 2.0–2.5 kWh | ₱6,000–₱12,000 | Large homes, small commercial |
| 550W+ | Maximum output per panel, commercial scale | 2.4–2.8 kWh | ₱7,500–₱15,000 | Commercial roofs, ground-mount farms |
What can each solar panel wattage power?
100W
100W Solar Panel
0.4–0.5 kWh / day • 50 pcs needed for 5kW
Small electronics, fans, LED lights, phone charging.
200W
200W Solar Panel
0.8–1.0 kWh / day • 25 pcs needed for 5kW
Refrigerator + lights + TV (partial).
400W
400W Solar Panel
1.6–2.0 kWh / day • 13 pcs needed for 5kW
Full appliances: fridge, AC, washing machine, TV.
450W–500W
450W–500W Solar Panel
2.0–2.5 kWh / day • 10–11 pcs needed for 5kW
High-consumption homes with multiple AC units.
550W+
550W+ Solar Panel
2.4–2.8 kWh / day • 9 pcs needed for 5kW
Maximum output per panel, commercial scale.
How to calculate the right wattage for your home
1
Check your Meralco bill
Find your average daily kWh usage. Divide your monthly kWh by 30 to get your daily consumption.
2
Determine peak sun hours
The Philippines averages 4.5–5.5 peak sun hours per day. This is how much usable sunlight your panels receive.
3
Calculate system size
Divide your daily kWh by peak sun hours. Example: 20 kWh/day ÷ 5 hours = 4kW system needed.
4
Choose panel wattage
Divide total watts by panel wattage. A 4,000W system ÷ 400W panels = 10 panels. Adjust for roof space and budget.