Wind Energy Turbines

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How large wind turbines are built and maintained

Large wind turbines have matured in many ways over the years and today represent a viable alternative to coal or gas based energy generation for many utility companies worldwide. The latest generation of wind turbines are more durable and efficient than older models and will operate for decades with very little maintenance. They also include innovations to make them more efficient and can produce quite a bit more power than older models with the same amount of wind.

Installing one of these larger wind turbines can be a challenge depending on the location and there are several options available. Most of these units are mounted high up in the air to allow them access to strong and consistent wind flow. This ensures that they can produce their maximum power throughout varying seasons and weather conditions. These large wind energy turbines are normally located in fairly remote areas such as offshore or near changes in elevations like mountains or foothills. These areas tend to provide the best access to a consistent wind and also increase the difficulty in installing one of these wind energy turbines.

Tubular steel towers are most common to generate wind turbine energy

The towers that these large wind energy turbines are mounted on are usually one of three varieties and the choice depends on the type of terrain involved. The simplest and least expensive mounting tower is the lattice tower and it is constructed from welded steel rods and beams. These towers use less steel than other options and this helps to lower their cost significantly. The major drawback to this type of tower is its visual appearance, which many observers may find objectionable. These towers are usually assembled onsite in sections with the use of a large crane to lift the sections in place. Once the tower is complete, the crane will place the wind turbine on top.

The most common tower for current wind turbine energy products is the tubular steel tower. This type of tower is manufactured in sections that are transported to the site and bolted together in place. A circular steel tower is more appealing visually than the lattice tower and is also more durable in high winds. The next most common style of tower used is the concrete tower and these are typically used in very harsh environments like an offshore location. They can withstand a lot more abuse from the elements and provide a very stable base for the larger wind turbine energy projects.

Wind turbine maintenance

Wind turbine maintenance is done on these larger turbines at the top of the towers and is a very specialized operation. Most of the access is through a crane-aided lift for a platform or basket for the workers to ride up to the turbine in.

This wind turbine maintenance can include repairs, inspections and routine maintenance such as blade cleaning and replacement as well. Some of the larger wind turbines have access panels to allow workers to enter their enclosures to service the internal components such as the generator, gearbox and control electronics if needed. Because of improvements to the design of these newer wind energy turbines, there is much less maintenance needed than on older models.