
SG 2.2-122
Onshore wind turbine
Greater capacity factor in low-wind sites
Boasting a 122-meter rotor combined with a 2.2 MW generator, the SG 2.2-122 is especially suited to Class S sites, thanks to its extremely low power density for a reduced Levelized Cost of Energy.
Customer Contact
Would you like to know more about the SG 2.2-122? Are you interested in partnering with Siemens Gamesa?
onshoresales@siemensgamesa.com
Rotor diameter
122 m
Nominal power
2.2 MW
Technology
Geared
Wind class
IEC III/S
Key Facts
- Minimum power density and high efficiency for reduced LCoE
- One of the greatest capacity factors for low-wind low-turbulence conditions
- Proven technology with optimized design, prototyping, validation and industrialization processes
- High reliability, with an average fleet availability greater than 98%
Recommended for
Low wind, onshore locations
Other models in the platform
Model | Rotor Dia. | Wind type |
---|---|---|
SG 2.1-114 | 114 m | For low to medium wind |
SG 2.6-114 | 114 m | For medium to high wind |
SG 2.9-129 | 129 m | For low to medium wind |
A high performer in low-wind sites
Technical specification
General details | |
---|---|
Rated power | 2.2 MW |
Wind class | IEC III/S |
Control | Pitch and variable speed |
Standard operating temperature | Range from 0ºC to 40ºC (1) |
Rotor | |
---|---|
Diameter | 122 m |
Swept area | 11,690 m² |
Power density | 188.19 W/m² |
Blades | |
---|---|
Length | 60 m |
Airfoils | Siemens Gamesa |
Material | Fiberglass reinforced with epoxy or polyester resin |
Tower | |
---|---|
Type | Multiple technologies available |
Height | 108, 127 m and site-specific |
Gearbox | |
---|---|
Type | 3 stages |
Generator | |
---|---|
Type | Doubly-fed induction machine |
Voltage | 690 V AC |
Frequency | 50 Hz/60 Hz |
Protection class | IP 54 |
Power factor | 0.95 CAP-0.95 IND throughout the power range (2) |
(1) Different versions and optional kits are available to adapt machinery to
high or low temperatures and saline or dusty environments.
(2) Power factor at generator output terminals, on low voltage side before
transformer input terminals.
One of the greatest capacity factors in low-wind sites

The SG 2.2-122 wind turbine is an addition to the Siemens Gamesa 2.X product platform, a benchmark in the wind power sector thanks to its excellent capacity factor, high profitability. Specifically optimized for low-wind, low-turbulence conditions, this model seeks competitive positioning in markets with locations of this type, such as China and India, through its low power density and reduced Levelized Cost of Energy.
Technological Highlights
Our onshore approach is focused on geared technology, in which we have extensive knowledge and expertise. The hallmarks of Siemens Gamesa turbines are: reliability, robustness and a modular, flexible design for optimum adaptation and maximization of production at any site and in all wind conditions.
As an aerodynamic blade add-on, DinoTails® Next Generation reduces the sound power levels by using a serrated trailing edge mounted at the blade and adding finer combs in between the teeth. This world-leading noise reduction technology enables us to create value for our customers by maximizing AEP and reducing the LCoE in sites with noise constraints.
This turbine is equipped with blades made of fiberglass reinforced with epoxy or polyester resin. Together with the state-of-the-art aerodynamic profile, we can produce lighter blades having greater strength and improved dynamic behavior with less load transmitted to the rest of the components.
Turbine sensors continuously transmit data to our diagnostic centers, enabling the early detection of anomalies and preventing potential failures. By analyzing vibration patterns we can optimize your service plan and anticipate repairs before serious damage occurs.
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Operating in around 90 countries, Siemens Gamesa offers an extensive range of onshore wind turbine technologies to cover all wind classes and site conditions. By listening to our customers - and backed up by almost 40 years of experience - we know just what it takes to develop and manage a successful onshore project.