The Turbine for the Italian Market. Complex sites. Unstable grids. Zero compromise.
CRRC Zhuzhou Institute developed the WT 6250 D175 specifically for the conditions of European mountain sites: above-class-A turbulence, unstable distribution grids and difficult logistical access. Five exclusive innovations for the most demanding markets.
Italian sites are among the most complex — and most promising — in Europe.
To find wind resource values worth developing in Italy, you must move to elevation: the Apennines, Alps and island ridges. These sites have specific characteristics — orography-driven turbulence, low winter temperatures, unstable distribution grids — that require purpose-built technology, not standardised solutions designed for flat terrain.
The WT 6250 D175 was developed from CRRC’s experience on analogous Chinese mountain sites: the same complex orography, the same grid challenges. It is the turbine that turns difficult Italian sites into competitive opportunities.
Super Doubly-fed
Proprietary technology to operate on unstable grids without production interruption — critical for Italian sites far from main grid backbones.
Turbulence >Class A
Reinforced structure to withstand turbulence exceeding IEC Class A — a common condition on Apennine and Alpine ridges with complex orography.
Component modularity
Components dimensioned for transport on mountain roads with tight turning radii and limited load capacity. Multiple tower solutions: tubular, lattice, concrete, sectional.
Blade de-icing
Integrated blade heating system to operate in frost and high-altitude conditions without production losses during winter months.
Complete technical data.
| Rotor diameter | 175 m |
|---|---|
| Rated power | 6.25 MW |
| Design annual average wind speed | 6 – 8.5 m/s |
| Maximum wind speed | 42.5 m/s |
| Cut-in speed | 3 m/s |
| Cut-out speed | 25 m/s |
| Available hub heights | 105–160 m (customisable) |
| Design wind class | S (site-specific) |
| Generator type | Super Doubly-Fed Induction |
| Pitch control | Active pitch control |
| SCADA system | Next-generation, remote monitoring |
| De-icing system | Heated blades — included |
* Technical data from the official CRRC Zhuzhou Institute datasheet. Specifications subject to change — refer to certified technical documentation for final design values.
4 tower solutions available.
NEAR and CRRC select the optimal tower solution for each site: orography, road access, landscape constraints and structural requirements determine the choice.
Conventional tubular
Standard, rapid installation, optimal for accessible sites.
Lattice
Lattice structure, maximum height for exceptional wind sites.
Concrete
Cast in situ, eliminating transport of long sections.
Sectional
Sectioned for mountain roads with tight bends and limited load capacity.