
SG 3.4-145
Onshore wind turbine
The new SG 3.4-145 wind turbine is designed to achieve the long-term wind energy targets of the country and complies with the expectations of the wind energy investors. The SG 3.4-145 is optimized for Indian wind conditions with a clear objective to deliver the lowest Levelized Cost of Energy (LCoE), and a great opportunity to accelerate wind-powered growth for the country. In other words, it is indeed delivering India’s positive energy.
Would you like to know more about the SG 3.4-145? Are you interested in partnering up with Siemens Gamesa? Please contact us!
marketingindia@siemensgamesa.com | onshoresales@siemensgamesa.com- Optimized design for low wind conditions
- Benchmark solution with high capacity factor
- 48% more AEP than the previous SG 2.2-122
- Up to 3.6 MW with flexible rating strategy
Low wind, onshore location
Model | Rotor Diam. | Wind type |
---|---|---|
SG 2.2-122 | 122 m | For low wind |
SG 5.0-145 | 145 m | For medium winds |
SG 5.8-170 | 170 m | For low and medium winds |
General details | |
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Rated power | 3.465 MW |
Wind class | IEC III/S |
Flexible Power rating | 3.6 MW |
Control | Pitch and variable speed |
Standard operating temperature | Range from 0ºC to 45ºC (with de-rating) |
Rotor | |
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Diameter | 145 m |
Swept area | 16,513 m² |
Power density | 209.8 W/m² |
Blades | |
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Length | 71 m |
Airfoils | Siemens Gamesa |
Material | Fiberglass reinforced with epoxy resin |
Tower | |
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Type | Multiple technologies available |
Height | 127.5 m and site-specific |
Gearbox | |
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Type | 3 stages |
Generator | |
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Type | Doubly-fed induction machine |
Voltage | 690 V AC |
Frequency | 50 Hz |
Protection class | IP 54 |
Power factor | 0.95 CAP-0.95 IND throughout the power range (1) |
(1) Power factor at generator-output terminals, on low voltage side before transformer input terminals.

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