SWT-7.0-154

Offshore wind turbine

Excellent offshore reliability

With high-energy production and assured reliability, the SWT-7.0-154 is the balanced solution for your offshore wind power needs. Small upgrades to proven technology show how cost-effective innovation can be.

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Wind class

Rotor diameter

154 m

Serial production

2017

Nominal power

7.0 MW

Key Facts

High-output workhorse
Robust design for extreme offshore conditions
Direct drive technology for high efficiency

Recommended for

High wind, offshore locations

Model Versions

Model	Rotor diameter	Wind class
SWT-6.0-154	154 m	IA
SG 8.0-167 DD	167 m	S (IB)
SG 10.0-193 DD	193 m	S (IB)

Classic features, groundbreaking innovations

We have evolved our tried and trusted direct drive technology by making small improvements inside the nacelle. That includes upgrades to the power converter and transformer, and more powerful magnets.

The SWT-7.0-154 retains all key features of the Offshore Direct Drive platform. By using existing components the supply chain is ready to go and associated processes are already established.

Technical specifications

IEC Class	IB
Nominal power	7,000 kW
Rotor diameter	154 m
Blade length	75 m
Swept area	18,600 m²
Hub height	Site specific
Power regulation	Pitch regulated, variable speed

Minimum upgrades for maximum effect

Compared to a new product introduction, staying within the SWT-6.0-154 design envelope means the 7 MW can provide a smooth transition for future projects in numerous ways. Product risk is reduced. Certification processes will be shorter. And the balance-of-plant supply chain impact from turbine configuration is minimal. In essence, we are reducing risk not only on a turbine level but, by extending on our proven platform, we bring valuable synergies to project development. Add a reduced need for turbine positions while increasing the power output and we arrive at a minimum upgrade for maximum effect.

Technological highlights

Efficient direct drive technology

Direct drive technology reduces the number of rating and wear-prone components in offshore turbines, making them simpler to maintain. Efficiency is improved by using a permanent magnet generator, which needs no excitation power. These and other design simplifications keep the weight low and dimensions small, lowering transport and installation costs.

High Wind Ride Through

The High Wind Ride Through (HWRT) system is a breakthrough in stabilizing energy output. When the wind speed is higher than 25 meters per second, wind turbines typically shut down for self-protection. Those equipped with the HWRT system will slowly ramp down power output instead, enabling smoother production ramp-down and thereby a more reliable electrical grid.

IntegralBlade® technology

The development of IntegralBlade® technology enables each fiberglass-reinforced epoxy blade to be cast in one piece. This process eliminates weaker areas at glued joints and produces blades of optimum quality, strength, and reliability.

Remote diagnostics services

Turbine sensors continuously transmit data to the Siemens Gamesa Diagnostic Center, 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.

Need help?

If you’re interested in becoming a client

The solutions we provide are driven by the benefits they deliver. This applies as much to our pursuit of absolute safety as to maximizing your return. Whether by inventing a new technology, evolving an existing product, or simply finding a smarter way of working, we strive to lower costs and raise returns on investments.

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If you’re an existing client

Our experts are on hand to help with any questions you have. Email us, or log in to our customer service portal Wind Dialogue. Here you’ll be able to monitor configuration, production, and agreements for your wind power plants, and find relevant news from Siemens Gamesa Renewable Energy.

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If you want to know more about our offshore business

With more than 25 years’ experience in the offshore wind power industry, we deliver proven, reliable, and sustainable solutions. Our turbines are designed to maximize your return on investment while delivering a lower cost of energy for everyone.

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