NST GLOBAL SOLAR & WIND ENERGY

Wind vs Solar ROI Calculator (Chennai) • Instant Estimate • Fully Client-Side

📊 Your Usage & Settings

Monthly electricity bill (₹)

Avg electricity rate (₹/kWh) (optional) Used to auto-calculate consumption

Avg consumption (kWh/month)

Savings horizon (years)

Annual tariff increase (%)

☀️ Solar Configuration

System size (kW)

Capacity factor (%) Chennai avg: ~15–22%

Installed cost (₹)

Annual O&M (₹)

Max bill offset limit (kWh/mo)

💨 Wind Configuration

Turbine size (kW)

Capacity factor (%) Conservative: 15–30%

Installed cost (₹)

Annual O&M (₹)

Max bill offset limit (kWh/mo)

Self-consumption assumption (%) How much generated energy directly offsets your bill

📈 ROI Comparison Results

☀️ Solar

— yrs

Simple payback period

₹ —

Net savings over 10 years

Bill offset: — kWh/yr
Avg annual savings: ₹ —

💨 Wind

— yrs

Simple payback period

₹ —

Net savings over 10 years

Bill offset: — kWh/yr
Avg annual savings: ₹ —

📊 Cumulative Savings Trend Chart (Connect your chart library or replace with SVG/Canvas)

📩 Get a Customized ROI Plan

Share your details. We’ll review your inputs and suggest the best-fit configuration for Chennai conditions.