Estimate system size, rooftop area required, investment & annual savings based on your actual load
01Location & connection type
From your electricity bill · syncs to Consumption step
5.8 h
Auto-filled by state · adjust for shading or tilt
02Monthly electricity consumption
⚡ Using your tariff: ₹7.00 / kWh (set in Location)
₹3,000
From your DISCOM bill · 1 unit = 1 kWh · or use Appliances step for exact load
Bill → Units auto-calculation
₹3,000 ÷ ₹7.00/kWh
=
429 kWh/month
03Select appliances · set quantity & daily hours
✅ Tap an appliance to select · set how many you have & hours/day used
Total connected load
0 W
Est. monthly consumption
0 kWh
Light load
04Recommended solar system
System size
--
kWp
Solar panels (540 Wp)
--
panels required
Daily generation
--
kWh / day
Monthly generation
--
kWh / month
🏠 Rooftop area required for your system
📐
--
Square metres (sq m)
minimum flat area needed
📏
--
Square feet (sq ft)
including row spacing
🔲
--
Panel footprint only
sq ft, without spacing
🏗️
--
Approx. dimensions
length × width (metres)
Panel layout preview — each rectangle = 1 × 540 Wp panel
₹Financial analysis
Annual savings
--
₹ / year
Payback period
--
years
System cost (est.)
--
before subsidy
After PM Surya Ghar subsidy
--
net cost to you
25-year total savings vs net investment
₹0--
Payback timeline (orange = recovered · gold = breakeven year)
📋Appliance load breakdown
| Appliance | Qty | Watts | Hrs/day | kWh/month |
|---|
🌿Environmental impact
CO₂ avoided/year
--
kg CO₂
Equivalent trees
--
trees/year
Lifetime gen (25 yr)
--
MWh total
25-yr ROI
--
% return
fxStep-by-step calculation (your data)