USA flag logo/image

An Official Website of the United States Government

Carbon Fiber Composite Aeroelastically Tailored Rotor Blades for Utility-Scale…

Award Information

Department of Energy
Award ID:
Program Year/Program:
2003 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Nanohmics, Inc
6201 East Oltorf St. Suite 400 Austin, TX -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2003
Title: Carbon Fiber Composite Aeroelastically Tailored Rotor Blades for Utility-Scale Wind Turbines
Agency: DOE
Contract: DE-FG02-03ER86175
Award Amount: $100,000.00


70206T02-II The wind turbine industry will require advanced blade materials and designs to achieve the DOE goal of 3.0¿/kWh cost of energy at Class 4 sites. The use of hybrid carbon/glass composite materials offers the potential for significant savings in blade weight. In addition, twist-bend coupling can ameliorate peak extreme loads and fatigue, allowing an increase in rotor diameter and, hence, energy capture. This project will develop and demonstrate the production of a utility-scale, twist-bend-coupled wind turbine rotor blade that can be cost-effectively manufactured using resin infusion processes with hybrid carbon and glass composite materials. Phase I: (1) conducted static and fatigue tests of coupons of unbalanced carbon-glass hybrid composite structures; (2) investigated blade manufacturing processes; (3) completed parametric studies of the dynamics of a 1.5-MW wind turbine using twist-bend coupled rotor blades; and (4) designed 37-m and 39-m twist-bend-coupled carbon-glass hybrid blades. Phase II will: (1) determine the properties of carbon/glass hybrid materials to be used in the design of twist-bend-coupled blades; (2) complete the design and analysis of the 37-m twist-bend coupled hybrid carbon/glass blade; (3) fabricate a prototype 37-m blade and subject it to static and fatigue testing; and (4) complete the design, development, and analysis of a 60-m carbon/glass hybrid twist-bend coupled wind turbine rotor blade. Commercial Applications and Other Benefits as described by awardee: Over the course of the first decade after the adoption of this technology, the increase in revenue or savings in cost to the wind turbine industry or consumers would add up to at least $500 million.

Principal Investigator:

Kyle K. Wetzel

Business Contact:

Keith D. Jamison
Small Business Information at Submission:

Nanohmics, Inc.
4302 Rimdale Drive Austin, TX 78731

EIN/Tax ID: 481249330
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
The Wichita State University
Dept. 3001-Research Admin.
319 National Institute for Avi
Wichita, KS 67260
RI Type: Nonprofit college or university