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Offshore Wind Turbine SWT-4.0-130 and 4.0-120

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Increase in AEP compared to its predecessor
0 %

Proven robustness with millions of operating hours


Keeps risk of investing in offshore wind power low

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Product Information

Designed for a lifetime of optimized output

To meet your offshore energy needs, robust technology is a must. That’s why the SWT-4.0-130 and 120 feature technology that allows a significant increase in energy production without compromising structural loading. A proven layout, strong structure, and service-friendly nacelle ergonomics ensure that by choosing a 4.0-MW turbine you choose increased offshore wind energy benefits – alongside turbine resilience.

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130-meter rotor for highest capacity factor in the industry

Improved efficiency without concessions is the name of the game for the 4.0-MW turbines. To get the most out of your offshore wind power investment, productivity has been taken to the next level: the SWT-4.0-130 features the largest rotor for geared offshore wind turbines coupled with a powerful generator, that creates an increased net annual energy production (AEP) by up to 15 percent at IEC I conditions compared to its retired predecessor SWT-3.6-120. Thanks to Siemens’ advanced blade technology the weight of structural components is well balanced. The SWT-4.0-120 features the smaller 120-meter rotor. This makes the installation of a 4.0-MW turbine suitable for environments where maximum tip height restrictions apply, so even more sites become an attractive option.

Making offshore wind power profitable

Like any long-term investment, the sustainability of your offshore wind power project is essential to ensure future returns. This is why the geared offshore turbines are the most popular choice for low-wind sites and emerging markets where unrivalled experience is key. The first commercial wind farms with Siemens geared wind turbines were installed offshore in 2007 making them the most installed offshore wind turbines worldwide: altogether more than 1,600 units. A fully developed supply chain for both off-the-shelf components in the turbine, but also optimized foundations, bespoke installation and service vessels along with a trained workforce keep your investment safe.

Technical specifications at a glance

Download table as: PDF Excel
SWT-4.0-130
IEC Class IB
Nominal Power 4,000 kW
Rotor diameter 130 m
Swept area 13,300 m2
Hub height Site specific
Annual output at 10 m/s 18,000 MWh
Download table as: PDF Excel
SWT-4.0-120
IEC Class IA
Nominal Power 4,000 kW
Rotor diameter 120 m
Swept area 11,300 m2
Hub height 90 m or site specific
Annual output at 10 m/s ??? MWh

Technology innovations

Download brochure for geared offshore turbines
G4 Platform Brochure

Downloads, Support, Services

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Customer Support

Siemens AG
Freyeslebenstrasse 1
91058 Erlangen
Germany

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Wind power training

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Service wind portfolio

Comprehensive care throughout the lifetime of your wind turbine. Discover the Siemens service wind portfolio.

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Offshore service logistics

Learn more about how Siemens offshore services can help you rising safety and efficiency standards.

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Take the next step towards your success

If you think the SWT-4.0-130 is the right turbine for your needs, please contact us. We look forward to talking with you.