Wind Turbine Economics
Wind energy has become one of the most cost-competitive sources of new electricity generation. The levelized cost of energy (LCOE) for onshore wind has fallen by more than 70% since 2009, reaching $30-50 per MWh in favorable locations. Offshore wind costs have also dropped dramatically but remain higher at $60-100 per MWh.
The financial viability of a wind turbine project depends on several key factors: wind resource quality (capacity factor), turbine cost, electricity price (through power purchase agreements or market rates), operating and maintenance costs, and available subsidies or tax incentives. Projects in good wind sites with favorable electricity prices typically achieve payback periods of 7-12 years.
Financial Calculations
Typical Wind Project Costs
| Component | Cost Range | % of Total |
|---|---|---|
| Turbine (incl. tower) | $800-1,500/kW | 65-75% |
| Foundation & Installation | $200-400/kW | 15-20% |
| Grid Connection | $100-300/kW | 5-10% |
| Development & Permitting | $50-150/kW | 3-7% |
| Annual O&M | $30-60/kW/year | Ongoing |
Frequently Asked Questions
Are wind turbines a good investment?
In areas with good wind resources (capacity factor above 30%) and favorable electricity prices, wind turbines can provide attractive returns. Typical ROI ranges from 8-15% annually once the payback period is complete. Government incentives like production tax credits (PTC) and accelerated depreciation can significantly improve project economics.
How long do wind turbines last?
Modern wind turbines are designed for a 20-25 year operational life. Many turbines continue operating beyond this with proper maintenance, though at gradually reduced output. Repowering (replacing old turbines with modern, more efficient ones) is increasingly common at existing wind farm sites.
What subsidies are available for wind energy?
In the US, the Production Tax Credit (PTC) provides approximately $26/MWh for the first 10 years. The Investment Tax Credit (ITC) offers 30% of project costs as a tax credit. Many states also offer renewable portfolio standards, net metering, and additional incentives that vary by location.