| 1 | A | B | C | D | E | F | G |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | Nordex - Technical data 2.5MW Gamma class |  |  |  |  |  |  |
| 3 | Parameter | N80 IEC1 | N90 IEC1 | N90 IEC2 | N100 IEC 2 | N100 IEC3 | N117/2400 IEC3 |
| 4 | Rated Power (kW) | 2,500 | 2,500 | 2,500 | 2,500 | 2,500 | 2,400 |
| 5 | Cut-in wind speed (m/s) | 3 | 3 | 3 | 3 | 3 | 3 |
| 6 | Cut-out wind speed (m/s) | 25 | 25 | 25 | 25 | 25 | 20 |
| 7 | Rotor diameter (m) | 80 | 90 | 90 | 100 | 100 | 117 |
| 8 | Swept area (m2) | 5,026 | 6,362 | 6,362 | 7,823 | 7,823 | 10,751 |
| 9 | m2 per MW | 2,010 | 2,548 | 2,548 | 3,129 | 3,129 | 4,480 |
| 10 | Revolutions per minute | 10.8-18.9 | 10.3-18.1 | 9.6-16.8 | 9.6-14.8 | 9.6-14.8 | 7.5-13.2 |
| 11 | Overspeed control | Pitch | Pitch | Pitch | Pitch | Pitch | Pitch |
| 12 | Gearbox | yes | yes | yes | yes | yes | yes |
| 13 | Generator | double-fed asynchronous generator | double-fed asynchronous generator | double-fed asynchronous generator | double-fed asynchronous generator | double-fed asynchronous generator | double-fed asynchronous generator |
| 14 | Grid frequency | 50/60 Hertz | 50/60 Hertz | 50/60 Hertz | 50/60 Hertz | 50/60 Hertz | 50/60 Hertz |
| 15 | Hub height (m) | 60 | 65/70/80 | 80/100 | 75/80/100 | 80/100/140 | 91/120/141 |

Question: How the hub height for the N90 change for the N117/2400 version?
Answer: The hub height of the 2.5 MW Nordex reaches from 65 meters for the N90 to 141 meters for the version of the N117/2400.