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Offshore Wind Energy Development in America

Feb 19, 2025

Offshore Wind Turbines in America

Introduction

  • Offshore wind turbines are being introduced in America for the first time.
  • The project is located off Block Island, Rhode Island, using technology adapted from land-based wind farms.

Deepwater Wind's Project

  • CEO: Jeff Grabowski.
  • Equipment lifted 450 feet up—29 tons per blade, each 241 feet long.
  • Rhode Island Governor Gina Raimondo supports the initiative for cleaner and potentially cheaper energy.

Comparison with Europe

  • Europe has over 3,000 offshore turbines, supplying power to 7 million homes.
  • Denmark generates 40% of its electricity from wind and aims for 50%.
  • US wind power currently constitutes 5% of electricity generation.

Challenges and Opposition

  • Legal challenges, permitting, and aesthetic concerns about windmills being eyesores.
  • Block Island residents express mixed feelings about the visual impact.

Financial Aspects

  • $300 million project funded by private investment and federal tax credit.
  • Uncertainty over energy costs for ratepayers; National Grid's rates will increase by 3.5% annually for 20 years.
  • Critics like Al Labrano are concerned about rising electricity bills.

Existing Electricity Costs on Block Island

  • High electricity rates due to reliance on fuel oil and an old diesel plant.
  • New wind project promises stable energy costs without fluctuation.

Strategic Decision and Future Prospects

  • Deepwater Wind began with a small demonstration project of 30 MW from five turbines.
  • Future plans to expand to utility-scale projects.
  • Massachusetts and California are exploring offshore wind developments.

Floating Turbines and Cost

  • Trident Winds proposes floating turbines in deeper Pacific waters.
  • Floating turbines are cost-competitive with traditional power plants.

Industry Implications

  • Block Island project seen as a stimulus for offshore wind in the US.
  • Expectation that costs will decrease with more offshore projects.

Conclusion

  • Offshore wind power is crucial for meeting renewable energy targets.
  • Skepticism exists about costs and visual impact, but progress is seen as necessary and inevitable.