Solar panel sizes & dimensions
for Philippine roofs

Standard panel dimensions, roof space needed per system size, and how to maximize your roof for solar in the Philippines.

Standard solar panel sizes

Panel TypeLengthWidthAreaWeightWattsBest For
60-cell (Residential)1.7m1.0m1.7 m²18–22 kg270–400WStandard house roofs
72-cell (Commercial)2.0m1.0m2.0 m²22–26 kg400–550WLarge roofs, ground-mount
66-cell (Mid-size)1.8m1.0m1.8 m²20–24 kg350–450WMedium roofs, residential
Half-cut (High-efficiency)1.7m1.0m1.7 m²19–23 kg400–500WLimited roof space

Roof space needed by system size

3kW
8 panels (400W)
13–14 m²
Saves ₱3,000–₱4,500/month
5kW
13 panels (400W)
22–23 m²
Saves ₱5,000–₱7,500/month
7kW
18 panels (400W)
30–31 m²
Saves ₱7,000–₱10,500/month
10kW
25 panels (400W)
42–43 m²
Saves ₱10,000–₱15,000/month

Tips for measuring your roof

  • 1
    Measure the south-facing roof plane — these get the most sun in the Philippines
  • 2
    Subtract 15% for setbacks from roof edges, vents, and chimneys
  • 3
    Account for shading from water tanks, trees, and neighboring buildings
  • 4
    For flat roofs, bifacial panels on tilt racks produce 15–30% more energy
  • 5
    A typical Philippine roof can fit 13–18 panels (5–7kW system)

Solar panel sizes FAQs

A standard 60-cell residential solar panel measures 1.7m × 1.0m (about 1.7 square meters). Commercial 72-cell panels are 2.0m × 1.0m. Most Philippine roofs can accommodate standard panels.
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