Electricity rate assumed at ₹8.0/unit, the average DHBVN residential/commercial tariff, to convert your bill into monthly consumption (skip this by entering usage directly).
System size = annual consumption ÷ 1,460 units per kWp per year — the typical yearly generation for a rooftop system across Faridabad, Gurugram and Palwal — rounded to the nearest 0.5 kWp.
Panels assumed at 600 Wp each; roof area assumed at ~100 sq ft per kWp of capacity.
Installed cost assumed at ₹65,000 per kWp for On-Grid systems, and ₹110,000 per kWp for Hybrid systems (the added battery and hybrid inverter raise the per-kW cost), both before subsidy.
Central subsidy modelled on the PM Surya Ghar Muft Bijli Yojana slabs for residential rooftops: ₹30,000/kW for the first 2 kW, ₹18,000 for the 3rd kW, capped at ₹78,000 for systems 3 kW and above, disbursed via HAREDA. Not applicable to commercial properties.
We currently install only in DHBVN (Dakshin Haryana Bijli Vitran Nigam) areas of Haryana — Faridabad, Gurugram and Palwal.
Annual generation = system size × 1,460 units/kWp/year.
CO₂ offset uses India's grid emission factor of ~0.82 kg CO₂/kWh; tree-equivalence uses ~21 kg CO₂ absorbed per mature tree per year.
All figures are planning-stage estimates only — actual quotes depend on your roof, shading, sanction load and DHBVN rules.
