The global wind
resources are estimated to be 72 TW. This is roughly seven times the global demand for
five times the demand for energy across the world.
In 2018, the global capacity of wind power had reached over 600 GW. Further, the construction
wind power is different in each year and also varies by region. Here is a list of the top 10
has installed the highest wind capacity in the world.
||Top 10 countries
The Manufacturing Process
Before beginning the construction of wind turbines, consideration must be majorly given to the ideal
location where the turbines must be deployed. The manufacturers must determine the wind speed and
make sure it’s consistent; preferably 15.5 miles per hour (25 km/hr). If the winds are stronger during
certain seasons, then they better be during the times of maximum use of electricity.
Wind farms are known to work best in areas that are vast and open with slightly rolling lands with
mountains all around. Such areas are preferred as the wind turbines can be comfortably placed on
ridges and will remain undisturbed by trees or buildings. The mountains will help in concentrating the
airflow and create a natural wind tunnel of faster and stronger winds. Wind farms need to be placed
near the utility lines in order to facilitate the transfer of electricity to the local power plant.
Erecting the tower
The steel parts of a tower are manufactured offsite in a factory and they are assembled on the site.
Before erection, the parts are bolted together and the tower is kept horizontal before being placed. A
crane is used to lift the tower into position and all the bolts are tightened. A test for stability is done
The fiberglass nacelle is manufactured offsite in a factory and is put together in a factory itself. The
interior parts like the main drive shaft, gearbox, and blade pitch and yaw controls are firstly assembled
and then later mounted onto a base frame. Later, the nacelle is bolted around the structure. At the site,
the nacelle is lifted using cranes to the finished structure and bolted.
Sheets of aluminum are bolted together to create aluminum blades and the wooden blades are
carved out to create an aerodynamic propeller. These propellers are similar in cross-section to
an airplane wing.
Most of the blades are usually formed with fiberglass. But the manufacturing of fiberglass is a
very tedious process. First, a mold that is shaped like a blade is created in two halves. Later, a
fiberglass and resin composite mixture is applied to the surface of the mold facing inwards and
then closed. The fiberglass mixture is then left to dry for several hours. As it dries, an air-filled
bladder within the mold helps to keep the blade in shape. After it dries, the mold is opened and
the bladder is removed. The final steps involve, cleaning, sanding and painting before which the
halves are sealed.
The blades are bolted onto the nacelle after it is fixed to the tower. Assembly is usually easier on
the ground. Sometimes, a three-pronged blade has two blades that are bolted onto the nacelle
before it is lifted. The third blade is fixed after the nacelle is in place.
Installation of the control systems
Along with the placement of the nacelle and blades, the utility box for each wind turbine and the
electrical communication for the wind farm is installed simultaneously. Cables start from the nacelle to
the utility box and from the utility box to the remote control center.
Future of wind energy
The complete potential of wind turbines is majorly untapped. There is a stiff competition in the field of
Research and Development (R&D) for the wind turbine developers to create large offshore models for
extreme weather and sea conditions. Designs are being developed to reduce the installation time and
maintenance frequency. These developments will logistically come into force in the next decade. Along
with this, the supply chain necessary for coastal manufacturing and the facilities required to negate the
obstructions involved with road/rail transports will also be looked upon by the research team.
The wind turbine manufacturers are also focusing now on floating offshore models. These models will
be rendered in a way that all the construction and maintenance part will be done on land. Later, the
equipment will be taken to the ocean and hooked to the seabed. Some of the new fields of innovation in
the near future will be advanced drivetrain designs, larger rotors made using lightweight materials,
better condition monitoring systems, and taller towers with varied architecture and materials.
What AXISCADES does
Our future depends on effective usage of sustainable energy and finding new ways to make us efficient.
Some of our solutions are:
Product Engineering Solutions
Simulation and Validation
Manufacturing Engineering Solutions
After Sales Solutions
Enterprise Engineering Solutions
The system and sub-system experience of AXISCADES spans across all components like:
Rear end support structure