Wind Turbine Calculator

Calculate wind turbine production, battery backup requirements, ROI analysis, and system sizing recommendations based on your location and specifications

Location

Latitude

Longitude

💡 Tip: Find coordinates at latlong.net

Turbine Specifications

Turbine Rating (kW)

Typical: 1.5-5 kW (home)

Turbine Count

Hub Height (m)

Typical: 20-120m

Rotor Diameter (m)

Typical: 10-100m

Cut-in (m/s)

Rated (m/s)

Cut-out (m/s)

System Efficiency (%)

Default: 90%

Energy Consumption

Daily Energy Usage (kWh/day)

Typical US home: 25-35 kWh/day

Battery Backup (Optional)

Enable

Financial Analysis

Total System Cost (USD) - Optional

Leave blank for auto-estimate ($5,000/kW small, $2,000/kW large)

Utility Rate ($/kWh)

Federal Tax Credit (%)

Maintenance Cost/Year (USD) - Optional

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Ready to Calculate

Enter your location and turbine specifications to see detailed wind production, battery backup, ROI analysis, and system sizing recommendations.

About Wind Turbine Calculators

How It Works

•Uses real wind data from Open-Meteo API
•Adjusts wind speed for hub height using power law
•Accounts for turbine power curve and cut-in/cut-out speeds
•Calculates capacity factor based on wind resource
•Includes 30% federal tax credit (2024)

Key Factors

•Wind Speed: Higher hub height = higher wind speed
•Capacity Factor: 20-40% typical for most sites
•Site Class: IEC 61400-1 wind classification
•Spacing: 5-10 rotor diameters between turbines
•Maintenance: 2-3% of system cost per year

Wind Speed Guidelines

Excellent (7.5+ m/s): Highly suitable for wind energy

Good (6.5-7.5 m/s): Suitable for wind energy

Fair (5.5-6.5 m/s): Marginal, small turbines only

Poor (<5.5 m/s): Not economically viable