Market Structure
Porter’s Five Forces
This section is intentionally left blank. Please go see the “Wind Turbine Manufacturing” step for a more detailed discussion regarding strategic conditions in wind turbine manufacturing industry.
Overview of Geography
There are three wind turbine nacelle assembly manufacturers in the U.S., located in Florida, Kansas and Colorado (Figure SC.1). For more discussion on the role geography plays in the wind turbine manufacturing industry, please see the “Wind Turbine Manufacturing” step.
Figure SC.1 Locations of Major Wind-related Manufacturing Facilities in 2017
Source: Figure 83 from AWEA 2017 U.S. Wind Industry Annual Market Report
According to the DOE report, more than 90 percent of nacelle assembly are performed domestically; however, majority of the components internal to the nacelle are manufacture red overseas. Table SC.1 to Table SC.3 list the few manufacturers of wind turbine generator, gearbox and composite housing in the U.S.
Table SC.1 List of Generator Manufacturers in the United States
Source: From Figure 2.4.5 in GLWN (2014), U.S. Wind Energy Manufacturing and Supply Chain Competitiveness Analysis with minor modifications to reflect the current market
| Company Name | Location | Land-based/Offshore | Coast | Notes |
| ABB | Bland, VA | Both | Atlantic | Capability exist – but not in the U.S. No current ABB U.S. generator manufacturing facilities. Bland, VA facility currently produces transformers only. |
| Ideal Electric | Mansfield, OH | Both | No | Low & Medium Speed synchronous generators. 4‐pole generators. |
| Ingeteam | Milwaukee, WI | Both | Great Lakes | Capability exists. Current supplier of
generators and transformers for U.S. and Europe. |
| Swiger Coil Systems | Cleveland, OH | Both | Great Lakes | All motors and generators are built and tested to OEM designs and specifications |
| TECO-Westinghouse | Round Rock, TX | Both | No | Manufactures double‐fed induction, synchronous, PMDD for 1‐5MW turbines. |
Table SC.2 List of Gearbox Manufacturers in the United States
Source: From Figure 2.9.4 in GLWN (2014), U.S. Wind Energy Manufacturing and Supply Chain Competitiveness Analysis with minor modifications to reflect the current market
| Company Name | Location | Land-based/Offshore | Coast | Notes |
| Horsburgh & Scott
(USA) |
Cleveland, OH | Both | Great Lakes | Capability exists. Experience in contract gearbox assembly and repair for up to 2MW units. Could manufacture gearboxes for 3MW and 5MW with investments to support full manufacturing and serial production. |
| Moventas
(Finnish) |
Portland, OR | Both | Pacific | Capability exists. Experience in contract gearbox assembly up to 2MW. Investment likely to support full manufacturing and serial production. European facilities produce for 3MW‐10MW units. |
| Winergy
(German) |
Elgin, IL | Both | No | Capability exists. Current manufacturer for up to 3MW. Some investment likely to manufacturing 5MW units. |
| ZF Wind Power
(German) |
Gainesville, GA | Both | No | Capability exists. Current manufacturer for up to 3MW. Some investment likely to manufacturing 5MW units. |
Table SC.3 List of Composite Housing Manufacturers in the United States
Source: From Figure 2.10.5 in GLWN (2014), U.S. Wind Energy Manufacturing and Supply Chain Competitiveness Analysis with minor modifications to reflect the current market
| Company Name | Location | Land-based/Offshore | Coast | Notes |
| MFG Alabama | Opp, AL | Both | Gulf | Capability exists. Currently manufactures nacelle housings. Can support both 3MW and 5MW production with minimal investment required. |
| MFG West | Adelanto, CA | Both | Pacific | Capability exists. Currently manufactures nacelle housings. Can support both 3MW and 5MW production with minimal investment required. |
| MFG Composite Systems | Ashtabula, OH | Both | Great Lakes | Capability exists. Currently manufactures spinners. Could manufacture nacelle housings or spinners for 3MW or 5MW but with some investment required. |
| MFG South Dakota | Aberdeen, SD | Both | No | Capability exists. Currently manufactures blades. Could manufacture nacelle housings or spinners for 3MW and 5MW with minimal investment required. |
| MFG Texas | Gainesville, TX | Both | Gulf | Capability exists. Currently manufactures blades. Could manufacture nacelle housings or spinners for 3MW and 5MW with minimal investment required. |
| MFG Union City | Union City, PA | Both | Great Lakes | Capability exists. Could manufacture nacelle housings or spinners for 3MW or 5MW but with some investment required. |
Firm Economic Data Table
Table SC.4 lists firm revenues, number of employees, as well as location of headquarter and manufacturing facilities. More detailed firm information can be found in their annual report or company website (link provided).
Table SC.4 List of Nacelle Assembly Manufacturers in the United States
Source: Created by authors based on company’s annual financial report or online website
| Company Name | Headquarter Location | Manufacturing Location | Number of Employees | Revenue (million) | Source |
| GE Renewable Energy | Paris, France | Pensacola, FL | 21,000 | $10,280 | 2017 Annual Report |
| Siemens Gamesa Renewable Energy | Zamudio, Spain | Hutchinson, KS | 25,000 | $6,538 | 2017 Annual Report |
| Vestas | Aarhus, Denmark | Brighton, CO | 23,303 | $11,634 | 2017 Annual Report |