The use of wind energy is one of the most dependable ways of generating electricity from renewable sources, and it continues to grow. Siemens has 30 years of experience in this area and is one of the leaders in the market for wind power solutions for both onshore and offshore locations: all in all, Siemens has installed over 9,000 onshore wind power generators worldwide (as of 2010). With a total capacity of more than 11,000 megawatts, these ecologically clean power plants help save several million tons of carbon dioxide each year compared to plants that burn fossil fuels (coal and gas).
By building new production sites in all key markets, Siemens is continuing to expand its global manufacturing capacity. We currently operate production facilities in Europe, America and Asia.
Over the years, Siemens wind power systems have set new standards for robustness and reliability. Their supporting structures are extremely dependable, and the mechanical systems require little maintenance.
The wind power turbines are suited for a wide range of wind conditions. The nominal output of the power plants ranges from 2.3 MW at low and moderate wind speeds to 3.6 MW at high wind speeds. The average diameter of the rotors measures between 80 and 120 meters. The rotor blades made of fiberglass-reinforced epoxy are manufactured using Siemens‘ proprietary IntegralBlade® process. Unlike conventional methods, this one involves no glue joints. As a result, the rotor blades are particularly robust and they enable maximum energy extraction at a variety of wind strengths. Our gearless wind generators are another technological highlight. They have just half as many parts as a unit with gears.
The NetConverter® power conversion system, a standard part of all wind power solutions from Siemens, enables highly flexible generator operation and helps adapt the power output to the needs of the various grids. The power output of onshore wind generators can be compared with that of many fossil-fueled power plants. Moreover, improvements in the efficiency of turbines and generators have made onshore wind power an economically viable option, even in regions with only moderate wind conditions. Another trend is that of “repowering” – replacing wind power turbines of the first generation with new, more efficient turbines.
| Proven technology |
| Efficient, competitive power generation |
| High degree of reliability |
| Zero fuel costs, zero emissions |
| Power utilities can meet the required targets for renewable energy |
| Emission-free technology |
| Reduction in CO2 emissions enabled by Siemens installations since 2003: 7.2 million tons per year |
2011-Mar-01 | Author