The General Rule of Thumb for Solar Roof Area
With modern high-density monocrystalline solar panels (540W – 580W), you need approximately 80 to 100 sq. ft. of shadow-free area per 1 kW of solar capacity.
System Size vs Roof Space Table
- 1 kW System: 80 – 100 sq. ft. (2 Panels)
- 2 kW System: 160 – 200 sq. ft. (4 Panels)
- 3 kW System: 250 – 300 sq. ft. (6 Panels)
- 5 kW System: 400 – 500 sq. ft. (10 Panels)
- 10 kW System: 800 – 1,000 sq. ft. (18–20 Panels)
Elevated Structures: Retain 100% Usable Terrace
Worried about losing your rooftop terrace for walking, laundry, or evening seating? Shree Laxmi Traders specializes in 7 to 9-foot elevated galvanized structures (high-rise pergola style). The panels act as a shaded weather canopy while the terrace floor remains completely open and usable.
The Importance of Shadow-Free Orientation
In Bihar, panels must face South at a tilt angle of approximately 24° to 26° for optimal solar capture throughout the year. Free technical site surveys ensure parapet walls, water tanks, and neighboring buildings cause zero partial shading.