Report on actual testing demonstrating that the performance of wind turbines can be increased by a factor of at least 10 by updating and revising “best practices”.  The results clearly show that wind turbine power is a function of the total blade area rather than the swept area.

Includes test data and history of testing by university students, testing by students of area high schools, and an explanation of why such a substantial improvement in performance is available at this time.


Testing and analysis have clearly demonstrated that switching to designing wind turbines around blade area rather than swept area will substantially improve the economics of wind energy in the US and the world.

For blades of a common design, the power generated is a direct function of the number of blades to a relatively high blade density.

The impact of this understanding of the wind power formulas will be:

  1. The power which can be generated in wind turbines can be increased to a self-sustaining, economic level. We will no longer need government grants to encourage business to invest in them.  They will become tax payers instead of needing grants at taxpayer expense.
  2. To achieve the same power level in a wind turbine the diameter around the tips of the blades can be substantially shorter. This means the towers will be shorter and less expensive.  The installation and maintenance cost will be substantially reduced.
  3. The development will focus on how to make shorter blades more efficient rather than enormously long blades survive.
  4. The shorter blade length will result in slower moving blade tips which can be seen by birds, resulting in fewer bird kills, likely eliminating that negative environmental problem.

Must be ordered from the Offshore Technology Conference

Download PowerPoint on  the topic


a short  paper having some discussions on the topic.