About the Land Area Estimator

Land area estimation for a solar plant calculates the minimum gross land required to install a given capacity, accounting for row spacing (to avoid inter-row shading), module tilt, access roads, inverter/transformer stations, and boundary clearances.

Formula

How to calculate it

1. 1Determine module dimensions and target tilt angle.
2. 2Calculate the required row pitch to limit shading to < 2% at winter solstice noon.
3. 3Divide module width by row pitch to get GCR.
4. 4Estimate net module area: capacity × 10 m²/kWp (for ~100 Wp/m² module density).
5. 5Divide net area by GCR for the active solar field area.
6. 6Add 15–25% for roads, inverter stations, transformer, O&M building, and boundary fencing.

Worked example

A 1 MWp fixed-tilt plant at 20° in Rajasthan: module pitch ~5.5 m, module width ~2.1 m → GCR = 0.38. Module area = 1,000 kWp × 10 m²/kWp = 10,000 m². Field area = 10,000 ÷ 0.38 = 26,300 m². Add 20% for infrastructure → ~3.15 acres gross.

What you can calculate

• Acres & hectares
• GCR analysis
• Acres/MW metric
• MNRE benchmarks

Frequently asked questions