Inventors:
Craig Leonard Christenson - Santa Barbara CA, US
Brian Glenn - Plymouth CA, US
Ole Kils - Santa Barbara CA, US
Robert H. Gates - Montecito CA, US
Thomas E. Nemila - Boise ID, US
International Classification:
F04D 27/00
Abstract:
A power generating system wherein a turbine () is mounted on top of a tower () or tethered underwater. The turbine () includes a rotor having a main blade () connected to a rotor hub () and an extender blade tip (′) attached to the main blade (). During manufacture, the optimum energy-capture is determined using site-specific conditions of one or more of air density, wind speed, extreme wind, wind shear, noise and turbulence intensity. The extender blade tip (′) is chosen from a number of extender blade tips having a length that is the closest to the determined optimum energy-capture. The chosen extender blade tip is attached to the main blade either during manufacture or on-site. Alternatively, a one piece blade is produced based on information determined from the site specific conditions. The tip of such one piece blade can be customized based on the information obtained.