We have built the most versatile efficient and popular 850 KW wind turbine in the world
The highly efficient operation and flexible configuration of the R52 make this turbine an excellent choice for all kinds of wind conditions. In addition, thanks to its modest dimensions, the R52 is simple and cost-effective to transport and install. If you add in robust construction, thoroughly tested components and an enviable track record, it is easy to see why we have erected more R 52s than any other turbine in our portfolio.

One of the factors that contribute to the success of the R52 is OptiTip ® , its pitch regulation system. This system features microprocessors which control the pitching of the blades, thus ensuring continuous adjustment to maintain optimal blade angles in relation to the prevailing wind. At the same time, OptiTip ® makes it possible to keep sound levels within the limits stipulated by local regulations.

The optimal solution
Another innovative feature of the R52 is the OptiSpeed ® * generator. This is a significant advance in wind turbine technology and makes a major contribution to the efficiency of the R52. In practice, it allows the turbine rotor speed to vary between 14 and 31 rpm depending on the conditions at any given time.
While the technology involved may be advanced, its purpose is simple: to maximise output. It does this by tapping the higher efficiency of slow and variable rotation, storing excess energy in rotational form and exploiting the full force of transient gusts. All told, OptiSpeed ® boosts annual energy production.
As an added benefit, OptiSpeed ® also reduces wear and tear on the gearbox, blades and tower on account of lower peak loading. Moreover, as turbine sound is a function of wind speed, the lower rotation speeds made possible by
OptiSpeed ® naturally reduce sound levels.
Finally, OptiSpeed ® helps the R52 850 KW to delivery better quality power to the grid, with rapid synchronisation, reduced harmonic distortion and less flicker.
Quite simply, OptiSpeed ® means more output, better quality power and less mechanical strain and sound.
Proven Performance
Wind power plants require substantial investments, and the process can be very complex.

Four factors that are critical to wind turbine quality: energy production, operational availability, power quality and sound level.
We spend months testing and documenting these performance areas for all Vestas turbines. When we are finally satisfied, we ask an independent testing organisation to verify the results – a practice we call Proven Performance. At Vestas we do not just talk about quality. We prove it.

The turbine that goes anywhere
If you have a viable wind power site, chances are that the R52 will do well there. That is because , we have devoted the last  years to expanding the range of conditions under which wind can be profitably harnessed
An all-round performer, this 850 kW wind turbine is our most adaptable turbine, well suited for a broad spectrum of medium and high winds. This is why we have installed approximately 500 R52s all over the world.
Several factors contribute to the flexibility of this wind turbine. Not only is the R52 available with eight different tower heights, but its modest size and remarkable sound profile also make it the perfect choice for both populated and remote locations. As a finishing touch, its compact
dimensions make overland transport simple.
The R52 is also the only kW-class turbine to be fitted with OptiSpeed ® , a technology that allows the rotor speed to vary within a range of approximately 60 per cent in relation to nominal rpm. This means that with OptiSpeed ® , the rotor speed can vary by as much as 30 per cent above and
below synchronous speed. OptiSpeed ® thereby maximises the aerodynamic efficiency of the rotor in response to changing wind conditions – and provides yet another instance of how Vestas’ versatility enhances the delivery of dependable power.