Konin, dnia 15-09-2014 CENTRALNA GRUPA ENERGETYCZNA S.A. 62-510 Konin, Spółdzielców 3 Tel: +48 606 877 966 / +48 63 2406859 e-mail: [email protected] Regionalny Dyrektor Ochrony Środowiska ul. 28 czerwca 1956 Poznań W nawiązaniu do wezwania do uzupełnienia karty informacyjnej przedsięwzięcia polegającego na: budowie dwóch elektrowni wiatrowych o mocy do 4,5MW każda wraz z infrastrukturą towarzyszącą na działkach o nr 966, 967, 968, 969, 970, 971, 972, 973, 974, 975, 976, 977, 978, 979, 980, 981, 1106, 1107, 1108, 1109, 1110, 1111 obręb Skokum, gm. Zagórów , pismo z dnia 3-go września 2014 roku, data wpływu 9 września 2014, (znak WOO-IV.4240.777.2014.ZP.2) poniżej przekazuję wyjaśnienia dotyczące szczegółów technicznych związanych z obniżeniem mocy akustycznej elektrowni. Szczegóły techniczne tego typu rozwiązań stanowią tajemnicę przedsiębiorstw produkujących turbiny i nie są udostępniane jako dokumentacja techniczna. Ogólne założenia tego typu systemów bazują na sterowaniu komputerowym parametrami pracy turbiny, które są powiązane z emisją akustyczną. Komputer poprzez koordynację informacji z czujników umieszczonych w odpowiednich punktach turbiny (zwykle znajdują się one na szczycie gondoli, w jej wnętrzu, oraz w łopatach śmigła) optymalizuje zdalnie takie parametry jak: - obniżenie wydajności turbiny (elektronicznie); - obniżenie prędkości obrotowej; - ustawienie łopat w pozycji bardziej aerodynamicznej. Kluczowe dla emisji akustycznej są zmiana kąta natarcia łopat śmigła i obniżenie prędkości obrotowej śmigła. Mniej agresywne ustawienie łopat śmigła wiąże się z obniżeniem prędkości obrotowej śmigła, które z kolei związane jest z niższą emisją akustyczną. Dotyczy to obniżenia emisji akustycznej w części aerodynamicznej – z racji optymalizacji kąta natarcia, oraz w części mechanicznej – z racji obniżenia prędkości obrotowej przekładni w gondoli turbiny. Obecnie wszyscy producenci oferują w nowych turbinach możliwość sterowania mocą akustyczną. Tryby pracy z obniżoną mocą akustyczną mają wpływ na poziom produkcji energii elektrycznej, która zmniejsza się wraz z wyciszeniem turbin o kilka do około dziesięciu procent. W skali roku nocne obniżenie mocy akustycznej obniży produkcję całoroczną o kilka procent w zależności od zadanego trybu pracy (należy pamiętać, że obniżenie wydajności dotyczy tylko najbardziej niekorzystnych akustycznie warunków). Poniżej zamieszczono wykres zależności mocy (wydajności) turbiny od prędkości wiatru na wysokości gondoli. 3000 moc turbiny [kW] dla gęstości powietrza 1,225 [g/cm3] 2800 2600 2400 104,5 2200 104,0 2000 103,5 1800 103,0 1600 102,5 1400 1200 1000 6 8 10 12 14 16 18 prędkość wiatru na wysokości gondoli [m/s] Kolejne krzywe są związane z określonym trybem pracy turbiny. Najgłośniejsza praca turbiny jest w trybie standardowym (zerowym), następnie kolejno aż do trybu „4” turbina jest coraz cichsza, co wiąże się również ze spadkiem wydajności. Przykładowo dla trybu standardowego uzyskujemy maksymalną moc rzędu 3000 kW dla prędkości wiatru 11,5 m/s z mocą akustyczną na poziomie 104,5dB. W trybie „4” jest to 2735 kW z mocą akustyczną na poziomie 102,5 dB. Oznacza to spadek mocy akustycznej o 2 dB, przy jednoczesnym spadku maksymalnej mocy turbiny o około 9%. Powyższe rozważania zostały oparte o dane dotyczące turbiny Nordex N131/3000. Do niniejszej odpowiedzi załączono dokumentację techniczną zawierającą dane będące podstawą sporządzenia wykresu zależności mocy turbiny od prędkości wiatru na wysokości gondoli dla różnych trybów pracy. Szczegóły rozwiązań różnych trybów pracy turbin dla różnych producentów mogą być różne, jednakże ogólna zasada powiązania spadku wydajności z obniżoną emisją akustyczną pozostaje niezmienna. Opis zawarty w niniejszej odpowiedzi należy traktować przykładowo, gdyż na obecnym etapie nie jest znany producent turbiny. Z poważaniem Noise level, Power curves, Thrust curves Noise level - Nordex N131/3000 Standard mode Basis: The specified sound power level is an expected value in terms of statistics. Results of single measurements will be within the confidence interval according to IEC 61400-14 [4]. Wind turbine data: Operational mode: Standard mode Rotor diameter: 131 m Remarks: Verification according to: Measurements are to be carried out by a measuring institute accredited for noise emission measurements at wind turbines according to ISO/IEC 17025 [3] at the reference position as defined in IEC 61400-11 [1]. The data analysis must be carried out according to the preferred method 1 of IEC 61400-11 [1]. The tonal penalties in the vicinity of wind turbines KTN based on these measurements are to be determined according to „Technische Richtlinien für Windenergieanlagen“ [2]. Tonality: The noise can be tonal in the vicinity of wind turbines. The specified sound power level includes potential tonal penalties according to „Technische Richtlinien für Windenergieanlagen“ [2], without taking account any tonality KTN ≤ 2 dB. [1] IEC 61400-11 ed. 2: Wind Turbine Generator Systems – Part 11: Acoustic Noise Measurement Techniques; 2002-12 [2] Technische Richtlinie für Windenergieanlagen – Teil 1: Bestimmung der Schallemissionswerte, Revision 18; FGW 2008-02 [3] ISO/IEC 17025: General requirements for the competence of testing and calibration laboratories; 2005-08 [4] IEC 61400-14, Wind turbines – Part 14: Declaration of apparent sound power level and tonality values, first edition, 2005-03 F008_246_A02_EN Revision 00, 2013-11-21 2/9 Noise level, Power curves, Thrust curves Noise level - Nordex N131/3000 Standard mode Maximum sound power level LWA [dB(A)] over the complete operating range of the turbine 104.5 F008_246_A02_EN Revision 00, 2013-11-21 3/9 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Standard mode Basis: These power curve values according to IEC 61400-12-1 are based on aerodynamic calculations by Nordex Energy GmbH. Wind turbine data: Operational mode: Standard mode Rotor diameter: 131 m Determinations for the power curve verification: Verification according to: IEC 61400-12-1:2005 Type of anemometer: Thies First Class (Advanced), Risø P2546A or Vector A100 Measurement of power: low voltage side, 660 VAC Air density: normalization to the nearest air density shown in the table Filter of turbulence: 9 % ≤ TI ≤ 15 % Filter of wind shear: a ≤ 0.2 (Hellman exponent) Wind shear measurement and determination according to the requirements of MEASNET power performance measurement procedure, Version 5, December – 2009, chapter 3.3 and 3.8 Filter of temperature: 2 °C ≤ θ ≤ 25 °C Status signal: Ready for operation without consideration of the cut-out hysteresis (IEC 61400-12-1:2005, database B) F008_246_A02_EN Revision 00, 2013-11-21 4/9 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Standard mode wind speed vhub [m/s] 0.900 0.925 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 11 64 129 210 311 432 577 746 941 1155 1380 1609 1836 2057 2274 2480 2652 2782 2878 2943 2982 2998 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 13 67 134 218 321 446 594 768 968 1188 1421 1657 1892 2122 2347 2555 2713 2831 2915 2969 2997 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 F008_246_A02_EN Power Pel [kW] at air density ρ [kg/m³] 0.950 0.975 1.000 1.025 1.050 1.075 15 70 139 225 332 459 612 790 995 1222 1461 1706 1949 2187 2417 2613 2760 2867 2939 2982 2999 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 16 73 144 233 342 473 629 812 1023 1256 1503 1755 2006 2254 2487 2670 2806 2902 2963 2994 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 Revision 00, 2013-11-21 18 76 149 240 352 486 646 834 1051 1290 1544 1805 2065 2319 2547 2720 2845 2929 2979 2999 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 20 79 154 247 362 500 664 856 1078 1324 1586 1855 2124 2384 2601 2763 2877 2950 2988 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 21 82 159 255 372 513 681 878 1106 1358 1628 1906 2183 2448 2655 2806 2909 2971 2998 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 23 85 164 262 382 526 698 900 1133 1392 1670 1957 2242 2502 2698 2839 2931 2982 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 1.100 24 89 169 269 392 540 716 922 1161 1426 1712 2006 2298 2550 2736 2867 2949 2989 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 5/9 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Standard mode wind speed vhub [m/s] 1.125 1.150 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 26 92 174 277 402 553 733 944 1188 1460 1752 2055 2355 2598 2775 2895 2968 2997 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 28 95 179 284 412 567 750 966 1216 1494 1793 2103 2405 2640 2807 2919 2981 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 F008_246_A02_EN Power Pel [kW] at air density ρ [kg/m³] 1.175 1.200 1.225 1.250 1.275 29 98 184 291 422 580 768 988 1243 1528 1834 2152 2448 2673 2832 2934 2986 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 31 101 189 299 432 593 785 1010 1271 1561 1875 2201 2490 2706 2856 2950 2992 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 Revision 00, 2013-11-21 33 104 194 306 442 607 802 1032 1298 1595 1915 2250 2533 2740 2881 2965 2997 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 34 107 199 313 453 620 819 1054 1326 1629 1956 2299 2575 2774 2906 2981 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 36 110 203 320 463 633 837 1076 1353 1663 1998 2336 2605 2795 2919 2985 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 1.300 37 113 208 328 473 647 854 1098 1380 1696 2039 2373 2634 2816 2932 2988 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 6/9 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Standard mode Basis: The represented thrust coefficients are based on aerodynamical calculations of the Nordex Energy GmbH. The thrust curves are only for information and will not be warranted. Wind turbine data: Operational mode: Standard mode Blade regulation: Pitch Air density: to the nearest air density shown in the table F008_246_A02_EN Revision 00, 2013-11-21 7/9 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Standard mode wind speed vhub [m/s] 0.900 Thrust coefficients cT [-] at air density ρ [kg/m³] 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 0.874 0.831 0.795 0.787 0.776 0.840 0.839 0.838 0.836 0.790 0.745 0.691 0.639 0.591 0.548 0.509 0.474 0.442 0.382 0.328 0.287 0.253 0.225 0.202 0.182 0.164 0.149 0.136 0.125 0.114 0.105 0.097 0.090 0.084 0.078 0.875 0.832 0.797 0.792 0.781 0.839 0.839 0.838 0.836 0.791 0.745 0.693 0.641 0.594 0.552 0.512 0.477 0.446 0.367 0.317 0.278 0.246 0.219 0.196 0.177 0.160 0.145 0.133 0.121 0.111 0.103 0.095 0.088 0.082 0.076 0.882 0.844 0.825 0.826 0.810 0.839 0.838 0.837 0.837 0.797 0.756 0.714 0.668 0.625 0.582 0.485 0.404 0.345 0.299 0.262 0.231 0.205 0.183 0.165 0.149 0.135 0.123 0.112 0.103 0.095 0.087 0.081 0.075 0.070 0.065 F008_246_A02_EN 0.876 0.834 0.801 0.797 0.785 0.839 0.838 0.838 0.837 0.791 0.745 0.694 0.644 0.598 0.555 0.516 0.481 0.417 0.354 0.307 0.270 0.239 0.213 0.191 0.172 0.156 0.142 0.129 0.118 0.109 0.100 0.093 0.086 0.080 0.074 0.877 0.836 0.805 0.802 0.789 0.839 0.838 0.838 0.837 0.792 0.746 0.697 0.647 0.602 0.560 0.520 0.486 0.401 0.343 0.298 0.262 0.232 0.207 0.186 0.168 0.152 0.138 0.126 0.115 0.106 0.098 0.090 0.084 0.078 0.072 Revision 00, 2013-11-21 0.878 0.837 0.809 0.806 0.793 0.839 0.838 0.838 0.837 0.793 0.747 0.700 0.651 0.606 0.564 0.525 0.464 0.387 0.333 0.290 0.255 0.226 0.202 0.181 0.163 0.148 0.135 0.123 0.113 0.104 0.095 0.088 0.082 0.076 0.071 0.879 0.839 0.813 0.811 0.797 0.839 0.838 0.837 0.837 0.794 0.749 0.703 0.656 0.611 0.569 0.530 0.445 0.375 0.324 0.282 0.249 0.221 0.197 0.177 0.159 0.145 0.131 0.120 0.110 0.101 0.093 0.086 0.080 0.074 0.069 0.880 0.840 0.817 0.816 0.801 0.839 0.838 0.837 0.837 0.795 0.751 0.707 0.660 0.616 0.574 0.535 0.430 0.365 0.315 0.275 0.243 0.215 0.192 0.173 0.156 0.141 0.128 0.117 0.108 0.099 0.091 0.084 0.078 0.073 0.068 0.881 0.842 0.821 0.821 0.806 0.839 0.838 0.837 0.837 0.796 0.754 0.712 0.666 0.622 0.580 0.504 0.416 0.355 0.307 0.268 0.237 0.210 0.188 0.169 0.152 0.138 0.126 0.115 0.105 0.097 0.089 0.083 0.077 0.071 0.066 8/9 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Standard mode wind speed vhub [m/s] 1.125 Thrust coefficients cT [-] at air density ρ [kg/m³] 1.150 1.175 1.200 1.225 1.250 1.275 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 0.883 0.845 0.829 0.829 0.814 0.839 0.838 0.837 0.837 0.797 0.757 0.715 0.670 0.626 0.585 0.469 0.393 0.337 0.292 0.256 0.226 0.201 0.179 0.161 0.146 0.132 0.120 0.110 0.101 0.093 0.086 0.079 0.074 0.068 0.064 0.884 0.847 0.833 0.833 0.818 0.839 0.838 0.837 0.837 0.798 0.758 0.716 0.671 0.628 0.565 0.456 0.383 0.329 0.285 0.250 0.221 0.196 0.176 0.158 0.143 0.129 0.118 0.108 0.099 0.091 0.084 0.078 0.072 0.067 0.063 F008_246_A02_EN 0.885 0.848 0.836 0.836 0.823 0.839 0.838 0.837 0.837 0.799 0.759 0.718 0.673 0.630 0.542 0.443 0.374 0.321 0.279 0.245 0.216 0.192 0.172 0.155 0.140 0.127 0.116 0.106 0.097 0.089 0.082 0.076 0.071 0.066 0.062 0.886 0.850 0.840 0.840 0.828 0.839 0.838 0.837 0.837 0.800 0.760 0.719 0.675 0.632 0.525 0.431 0.365 0.314 0.273 0.239 0.211 0.188 0.168 0.152 0.137 0.124 0.113 0.104 0.095 0.088 0.081 0.075 0.070 0.065 0.060 Revision 00, 2013-11-21 0.887 0.852 0.844 0.843 0.833 0.839 0.838 0.837 0.837 0.801 0.761 0.720 0.676 0.634 0.509 0.421 0.357 0.307 0.267 0.234 0.207 0.184 0.165 0.149 0.134 0.122 0.111 0.102 0.093 0.086 0.079 0.074 0.068 0.064 0.059 0.888 0.853 0.848 0.847 0.838 0.838 0.837 0.837 0.837 0.802 0.762 0.722 0.678 0.636 0.495 0.410 0.349 0.300 0.261 0.229 0.203 0.181 0.162 0.146 0.132 0.120 0.109 0.100 0.092 0.084 0.078 0.072 0.067 0.063 0.058 0.889 0.855 0.852 0.850 0.844 0.838 0.838 0.837 0.837 0.802 0.763 0.723 0.680 0.606 0.482 0.401 0.341 0.294 0.256 0.225 0.199 0.177 0.159 0.143 0.129 0.118 0.107 0.098 0.090 0.083 0.077 0.071 0.066 0.061 0.057 1.300 0.890 0.856 0.856 0.853 0.849 0.838 0.838 0.837 0.837 0.803 0.764 0.724 0.681 0.585 0.470 0.392 0.334 0.288 0.251 0.220 0.195 0.174 0.156 0.140 0.127 0.115 0.105 0.096 0.089 0.082 0.075 0.070 0.065 0.060 0.056 9/9 Noise level, Power curves, Thrust curves Noise level - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 dB(A) Basis: The specified sound power level is an expected value in terms of statistics. Results of single measurements will be within the confidence interval according to IEC 61400-14 [4]. Wind turbine data: Operational mode: Mode 1 / Sound optimized mode - 104.0 dB(A) Rotor diameter: 131 m Remarks: Verification according to: Measurements are to be carried out by a measuring institute accredited for noise emission measurements at wind turbines according to ISO/IEC 17025 [3] at the reference position as defined in IEC 61400-11 [1]. The data analysis must be carried out according to the preferred method 1 of IEC 61400-11 [1]. The tonal penalties in the vicinity of wind turbines KTN based on these measurements are to be determined according to „Technische Richtlinien für Windenergieanlagen“ [2]. Tonality: The noise can be tonal in the vicinity of wind turbines. The specified sound power level includes potential tonal penalties according to „Technische Richtlinien für Windenergieanlagen“ [2], without taking account any tonality KTN ≤ 2 dB. [1] IEC 61400-11 ed. 2: Wind Turbine Generator Systems – Part 11: Acoustic Noise Measurement Techniques; 2002-12 [2] Technische Richtlinie für Windenergieanlagen – Teil 1: Bestimmung der Schallemissionswerte, Revision 18; FGW 2008-02 [3] ISO/IEC 17025: General requirements for the competence of testing and calibration laboratories; 2005-08 [4] IEC 61400-14, Wind turbines – Part 14: Declaration of apparent sound power level and tonality values, first edition, 2005-03 F008_246_A12_EN Revision 00, 2014-02-20 10 / 81 Noise level, Power curves, Thrust curves Noise level - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 dB(A) Maximum sound power level LWA [dB(A)] over the complete operating range of the turbine 104.0 F008_246_A12_EN Revision 00, 2014-02-20 11 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 dB(A) Basis: These power curve values according to IEC 61400-12-1 are based on aerodynamic calculations by Nordex Energy GmbH. Wind turbine data: Operational mode: Mode 1 / Sound optimized mode - 104.0 dB(A) Rotor diameter: 131 m Determinations for the power curve verification: Verification according to: IEC 61400-12-1:2005 Type of anemometer: Thies First Class (Advanced), Risø P2546A or Vector A100 Measurement of power: low voltage side, 660 VAC Air density: normalization to the nearest air density shown in the table Filter of turbulence: 9 % ≤ TI ≤ 15 % Filter of wind shear: a ≤ 0.2 (Hellman exponent) Wind shear measurement and determination according to the requirements of MEASNET power performance measurement procedure, Version 5, December – 2009, chapter 3.3 and 3.8 Filter of temperature: 2 °C ≤ θ ≤ 25 °C Status signal: Ready for operation without consideration of the cut-out hysteresis (IEC 61400-12-1:2005, database B) F008_246_A12_EN Revision 00, 2014-02-20 12 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 dB(A) wind speed vhub [m/s] 0.900 0.925 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 11 63 128 210 311 432 576 745 935 1140 1353 1568 1781 1989 2193 2391 2564 2697 2796 2865 2910 2931 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 13 67 134 218 321 445 594 767 962 1174 1394 1617 1837 2053 2265 2464 2624 2744 2832 2890 2923 2934 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 F008_246_A12_EN Power Pel [kW] at air density ρ [kg/m³] 0.950 0.975 1.000 1.025 1.050 1.075 15 70 139 225 331 459 611 789 990 1209 1437 1667 1895 2119 2337 2531 2679 2788 2863 2911 2933 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 16 73 144 232 341 472 628 811 1018 1243 1478 1717 1953 2185 2405 2588 2724 2822 2887 2922 2934 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 Revision 00, 2014-02-20 18 76 149 240 351 486 646 833 1046 1278 1521 1767 2011 2251 2474 2644 2769 2855 2909 2934 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 20 79 154 247 362 499 663 855 1073 1312 1563 1817 2069 2314 2527 2686 2800 2876 2919 2934 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 21 82 159 254 372 513 680 877 1101 1346 1603 1865 2125 2375 2577 2727 2831 2896 2928 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 23 85 164 262 382 526 698 899 1128 1379 1643 1912 2180 2432 2624 2764 2858 2913 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 1.100 24 88 169 269 392 539 715 921 1156 1413 1683 1959 2234 2478 2661 2791 2875 2921 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 13 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 dB(A) wind speed vhub [m/s] 1.125 1.150 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 26 92 174 276 402 553 732 943 1183 1446 1723 2006 2287 2523 2697 2818 2893 2928 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 28 95 179 284 412 566 750 965 1210 1479 1763 2053 2341 2569 2733 2845 2911 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 F008_246_A12_EN Power Pel [kW] at air density ρ [kg/m³] 1.175 1.200 1.225 1.250 1.275 29 98 183 291 422 579 767 987 1238 1513 1803 2100 2385 2604 2759 2862 2918 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 31 101 188 298 432 593 784 1009 1265 1546 1843 2147 2425 2635 2783 2877 2923 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 Revision 00, 2014-02-20 33 104 193 306 442 606 801 1031 1292 1579 1882 2194 2466 2667 2806 2891 2928 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 34 107 198 313 452 620 819 1053 1320 1613 1922 2241 2506 2699 2829 2906 2933 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 36 110 203 320 462 633 836 1075 1347 1646 1962 2285 2544 2728 2850 2918 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 1.300 37 113 208 327 472 646 853 1097 1374 1679 2002 2321 2572 2748 2862 2922 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 2935 14 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 dB(A) Basis: The represented thrust coefficients are based on aerodynamical calculations of the Nordex Energy GmbH. The thrust curves are only for information and will not be warranted. Wind turbine data: Operational mode: Mode 1 / Sound optimized mode - 104.0 dB(A) Blade regulation: Pitch Air density: to the nearest air density shown in the table F008_246_A12_EN Revision 00, 2014-02-20 15 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 dB(A) wind speed vhub [m/s] 0.900 Thrust coefficients cT [-] at air density ρ [kg/m³] 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 0.874 0.831 0.795 0.787 0.776 0.840 0.838 0.838 0.815 0.758 0.706 0.656 0.607 0.562 0.521 0.484 0.451 0.421 0.377 0.321 0.281 0.248 0.221 0.197 0.178 0.161 0.146 0.133 0.122 0.112 0.103 0.095 0.088 0.082 0.076 0.875 0.832 0.797 0.792 0.780 0.839 0.838 0.838 0.817 0.760 0.709 0.659 0.610 0.566 0.525 0.488 0.454 0.424 0.360 0.310 0.272 0.240 0.214 0.192 0.173 0.156 0.142 0.130 0.119 0.109 0.101 0.093 0.086 0.080 0.074 0.882 0.844 0.825 0.826 0.809 0.839 0.838 0.837 0.824 0.773 0.725 0.679 0.631 0.588 0.547 0.474 0.395 0.337 0.292 0.256 0.226 0.201 0.179 0.161 0.146 0.132 0.120 0.110 0.101 0.093 0.086 0.079 0.074 0.068 0.064 F008_246_A12_EN 0.876 0.834 0.801 0.797 0.785 0.839 0.838 0.837 0.819 0.763 0.713 0.664 0.614 0.570 0.529 0.492 0.458 0.411 0.346 0.301 0.264 0.234 0.208 0.187 0.168 0.152 0.139 0.126 0.116 0.106 0.098 0.091 0.084 0.078 0.073 0.877 0.835 0.805 0.802 0.789 0.839 0.838 0.837 0.820 0.766 0.716 0.668 0.619 0.574 0.533 0.496 0.462 0.393 0.335 0.292 0.257 0.227 0.203 0.182 0.164 0.149 0.135 0.123 0.113 0.104 0.096 0.088 0.082 0.076 0.071 Revision 00, 2014-02-20 0.878 0.837 0.809 0.806 0.793 0.839 0.838 0.837 0.821 0.768 0.720 0.672 0.623 0.579 0.537 0.500 0.463 0.378 0.325 0.284 0.250 0.221 0.198 0.177 0.160 0.145 0.132 0.120 0.110 0.101 0.093 0.086 0.080 0.074 0.069 0.879 0.839 0.813 0.811 0.797 0.839 0.838 0.837 0.822 0.771 0.723 0.676 0.627 0.583 0.542 0.505 0.436 0.367 0.316 0.276 0.243 0.216 0.193 0.173 0.156 0.141 0.129 0.118 0.108 0.099 0.091 0.085 0.078 0.073 0.068 0.880 0.840 0.817 0.816 0.801 0.839 0.838 0.837 0.823 0.772 0.724 0.678 0.629 0.585 0.544 0.507 0.420 0.356 0.308 0.269 0.237 0.210 0.188 0.169 0.152 0.138 0.126 0.115 0.105 0.097 0.089 0.083 0.077 0.071 0.066 0.881 0.842 0.821 0.821 0.805 0.839 0.838 0.837 0.824 0.772 0.725 0.678 0.630 0.586 0.545 0.496 0.406 0.346 0.300 0.262 0.231 0.205 0.184 0.165 0.149 0.135 0.123 0.112 0.103 0.095 0.087 0.081 0.075 0.070 0.065 16 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 dB(A) wind speed vhub [m/s] 1.125 Thrust coefficients cT [-] at air density ρ [kg/m³] 1.150 1.175 1.200 1.225 1.250 1.275 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 0.883 0.845 0.829 0.829 0.813 0.839 0.838 0.837 0.825 0.773 0.726 0.680 0.632 0.589 0.548 0.458 0.384 0.329 0.285 0.250 0.221 0.196 0.175 0.158 0.143 0.129 0.118 0.108 0.099 0.091 0.084 0.078 0.072 0.067 0.063 0.884 0.847 0.832 0.833 0.818 0.838 0.838 0.837 0.826 0.774 0.726 0.680 0.633 0.590 0.549 0.444 0.374 0.321 0.279 0.244 0.216 0.192 0.172 0.154 0.140 0.127 0.115 0.106 0.097 0.089 0.082 0.076 0.071 0.066 0.061 F008_246_A12_EN 0.885 0.848 0.836 0.836 0.822 0.838 0.838 0.837 0.827 0.774 0.727 0.681 0.634 0.590 0.528 0.432 0.365 0.313 0.272 0.239 0.211 0.188 0.168 0.151 0.137 0.124 0.113 0.103 0.095 0.087 0.081 0.075 0.069 0.065 0.060 0.886 0.850 0.840 0.840 0.828 0.838 0.837 0.837 0.827 0.775 0.727 0.681 0.634 0.591 0.511 0.420 0.356 0.306 0.266 0.234 0.207 0.184 0.165 0.148 0.134 0.122 0.111 0.101 0.093 0.086 0.079 0.073 0.068 0.063 0.059 Revision 00, 2014-02-20 0.887 0.852 0.844 0.843 0.833 0.838 0.837 0.837 0.828 0.775 0.728 0.682 0.635 0.592 0.495 0.410 0.348 0.300 0.261 0.229 0.202 0.180 0.161 0.145 0.131 0.119 0.109 0.100 0.091 0.084 0.078 0.072 0.067 0.062 0.058 0.888 0.853 0.848 0.846 0.838 0.838 0.837 0.837 0.829 0.776 0.728 0.682 0.636 0.593 0.481 0.400 0.340 0.293 0.255 0.224 0.198 0.177 0.158 0.143 0.129 0.117 0.107 0.098 0.090 0.083 0.076 0.071 0.066 0.061 0.057 0.889 0.855 0.852 0.850 0.843 0.838 0.837 0.837 0.830 0.777 0.729 0.683 0.636 0.588 0.469 0.391 0.333 0.287 0.250 0.220 0.195 0.173 0.155 0.140 0.127 0.115 0.105 0.096 0.088 0.081 0.075 0.070 0.065 0.060 0.056 1.300 0.890 0.856 0.856 0.853 0.849 0.838 0.837 0.837 0.831 0.777 0.729 0.683 0.637 0.567 0.457 0.382 0.326 0.281 0.245 0.215 0.191 0.170 0.152 0.137 0.124 0.113 0.103 0.094 0.087 0.080 0.074 0.068 0.064 0.059 0.055 17 / 81 Noise level, Power curves, Thrust curves Noise level - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 dB(A) Basis: The specified sound power level is an expected value in terms of statistics. Results of single measurements will be within the confidence interval according to IEC 61400-14 [4]. Wind turbine data: Operational mode: Mode 2 / Sound optimized mode - 103.5 dB(A) Rotor diameter: 131 m Remarks: Verification according to: Measurements are to be carried out by a measuring institute accredited for noise emission measurements at wind turbines according to ISO/IEC 17025 [3] at the reference position as defined in IEC 61400-11 [1]. The data analysis must be carried out according to the preferred method 1 of IEC 61400-11 [1]. The tonal penalties in the vicinity of wind turbines KTN based on these measurements are to be determined according to „Technische Richtlinien für Windenergieanlagen“ [2]. Tonality: The noise can be tonal in the vicinity of wind turbines. The specified sound power level includes potential tonal penalties according to „Technische Richtlinien für Windenergieanlagen“ [2], without taking account any tonality KTN ≤ 2 dB. [1] IEC 61400-11 ed. 2: Wind Turbine Generator Systems – Part 11: Acoustic Noise Measurement Techniques; 2002-12 [2] Technische Richtlinie für Windenergieanlagen – Teil 1: Bestimmung der Schallemissionswerte, Revision 18; FGW 2008-02 [3] ISO/IEC 17025: General requirements for the competence of testing and calibration laboratories; 2005-08 [4] IEC 61400-14, Wind turbines – Part 14: Declaration of apparent sound power level and tonality values, first edition, 2005-03 F008_246_A12_EN Revision 00, 2014-02-20 18 / 81 Noise level, Power curves, Thrust curves Noise level - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 dB(A) Maximum sound power level LWA [dB(A)] over the complete operating range of the turbine 103.5 F008_246_A12_EN Revision 00, 2014-02-20 19 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 dB(A) Basis: These power curve values according to IEC 61400-12-1 are based on aerodynamic calculations by Nordex Energy GmbH. Wind turbine data: Operational mode: Mode 2 / Sound optimized mode - 103.5 dB(A) Rotor diameter: 131 m Determinations for the power curve verification: Verification according to: IEC 61400-12-1:2005 Type of anemometer: Thies First Class (Advanced), Risø P2546A or Vector A100 Measurement of power: low voltage side, 660 VAC Air density: normalization to the nearest air density shown in the table Filter of turbulence: 9 % ≤ TI ≤ 15 % Filter of wind shear: a ≤ 0.2 (Hellman exponent) Wind shear measurement and determination according to the requirements of MEASNET power performance measurement procedure, Version 5, December – 2009, chapter 3.3 and 3.8 Filter of temperature: 2 °C ≤ θ ≤ 25 °C Status signal: Ready for operation without consideration of the cut-out hysteresis (IEC 61400-12-1:2005, database B) F008_246_A12_EN Revision 00, 2014-02-20 20 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 dB(A) wind speed vhub [m/s] 0.900 0.925 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 11 63 128 210 311 432 576 743 929 1127 1331 1534 1733 1928 2118 2305 2476 2609 2711 2785 2834 2862 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 13 66 133 217 321 445 593 765 957 1161 1372 1582 1788 1990 2187 2376 2536 2658 2749 2812 2850 2868 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 F008_246_A12_EN Power Pel [kW] at air density ρ [kg/m³] 0.950 0.975 1.000 1.025 1.050 1.075 15 70 138 225 331 459 610 787 984 1196 1413 1630 1844 2053 2257 2446 2594 2705 2784 2836 2864 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 16 73 143 232 341 472 628 809 1012 1230 1454 1679 1900 2116 2325 2505 2642 2742 2810 2851 2868 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 Revision 00, 2014-02-20 18 76 148 240 351 485 645 831 1040 1264 1496 1728 1956 2180 2391 2560 2685 2774 2832 2862 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 19 79 153 247 361 499 662 854 1068 1299 1538 1777 2013 2243 2451 2609 2724 2802 2849 2869 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 21 82 158 254 371 512 680 875 1095 1332 1578 1825 2068 2303 2501 2649 2753 2822 2858 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 23 85 163 262 381 525 697 897 1123 1366 1618 1872 2123 2363 2550 2688 2783 2841 2867 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 1.100 24 88 168 269 391 539 714 919 1150 1399 1659 1920 2177 2413 2591 2720 2804 2852 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 21 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 dB(A) wind speed vhub [m/s] 1.125 1.150 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 26 91 173 276 401 552 732 941 1178 1433 1699 1967 2231 2458 2627 2746 2821 2859 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 28 94 178 283 412 565 749 963 1205 1467 1739 2015 2285 2504 2664 2773 2839 2866 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 F008_246_A12_EN Power Pel [kW] at air density ρ [kg/m³] 1.175 1.200 1.225 1.250 1.275 29 98 183 291 422 579 766 985 1232 1500 1780 2063 2336 2546 2696 2796 2852 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 31 101 188 298 432 592 783 1007 1260 1534 1820 2110 2376 2578 2720 2811 2857 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 Revision 00, 2014-02-20 32 104 193 305 442 606 801 1029 1287 1567 1859 2156 2417 2610 2743 2825 2862 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 34 107 198 313 452 619 818 1051 1314 1601 1899 2203 2457 2642 2766 2840 2867 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 36 110 203 320 462 632 835 1073 1342 1634 1939 2249 2497 2672 2788 2854 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 1.300 37 113 208 327 472 646 853 1095 1369 1667 1979 2285 2524 2692 2800 2857 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 2870 22 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 dB(A) Basis: The represented thrust coefficients are based on aerodynamical calculations of the Nordex Energy GmbH. The thrust curves are only for information and will not be warranted. Wind turbine data: Operational mode: Mode 2 / Sound optimized mode - 103.5 dB(A) Blade regulation: Pitch Air density: to the nearest air density shown in the table F008_246_A12_EN Revision 00, 2014-02-20 23 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 dB(A) wind speed vhub [m/s] 0.900 Thrust coefficients cT [-] at air density ρ [kg/m³] 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 0.874 0.831 0.795 0.787 0.776 0.839 0.838 0.837 0.796 0.738 0.685 0.633 0.584 0.540 0.499 0.463 0.431 0.402 0.376 0.316 0.275 0.243 0.216 0.193 0.174 0.157 0.143 0.130 0.119 0.110 0.101 0.093 0.086 0.080 0.075 0.875 0.832 0.797 0.792 0.780 0.839 0.838 0.837 0.798 0.741 0.688 0.636 0.587 0.543 0.503 0.467 0.434 0.405 0.355 0.304 0.266 0.235 0.210 0.188 0.169 0.153 0.139 0.127 0.116 0.107 0.098 0.091 0.084 0.078 0.073 0.882 0.843 0.825 0.825 0.809 0.838 0.838 0.837 0.806 0.753 0.705 0.656 0.608 0.564 0.524 0.465 0.385 0.329 0.286 0.250 0.221 0.196 0.175 0.158 0.142 0.129 0.118 0.108 0.099 0.091 0.084 0.078 0.072 0.067 0.062 F008_246_A12_EN 0.876 0.834 0.801 0.797 0.785 0.839 0.838 0.837 0.799 0.743 0.691 0.639 0.591 0.546 0.506 0.470 0.437 0.408 0.341 0.294 0.258 0.229 0.204 0.183 0.165 0.149 0.136 0.124 0.113 0.104 0.096 0.089 0.082 0.076 0.071 0.877 0.835 0.805 0.801 0.789 0.839 0.838 0.837 0.801 0.745 0.694 0.643 0.595 0.550 0.510 0.474 0.441 0.387 0.328 0.285 0.251 0.222 0.198 0.178 0.160 0.145 0.132 0.121 0.111 0.102 0.094 0.087 0.080 0.075 0.069 Revision 00, 2014-02-20 0.878 0.837 0.809 0.806 0.793 0.839 0.838 0.837 0.802 0.748 0.697 0.646 0.598 0.554 0.514 0.477 0.444 0.372 0.318 0.277 0.244 0.216 0.193 0.173 0.156 0.142 0.129 0.118 0.108 0.099 0.092 0.085 0.078 0.073 0.068 0.879 0.839 0.813 0.811 0.797 0.839 0.838 0.837 0.804 0.751 0.701 0.650 0.603 0.558 0.518 0.481 0.430 0.359 0.309 0.270 0.238 0.211 0.188 0.169 0.153 0.138 0.126 0.115 0.105 0.097 0.089 0.083 0.077 0.071 0.066 0.880 0.840 0.817 0.816 0.801 0.839 0.838 0.837 0.804 0.751 0.702 0.652 0.605 0.561 0.520 0.484 0.412 0.348 0.301 0.263 0.232 0.206 0.184 0.165 0.149 0.135 0.123 0.112 0.103 0.095 0.087 0.081 0.075 0.070 0.065 0.881 0.842 0.821 0.820 0.805 0.839 0.838 0.837 0.805 0.752 0.704 0.654 0.606 0.562 0.522 0.486 0.397 0.338 0.293 0.256 0.226 0.201 0.180 0.161 0.146 0.132 0.120 0.110 0.101 0.093 0.086 0.079 0.073 0.068 0.064 24 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 dB(A) wind speed vhub [m/s] 1.125 Thrust coefficients cT [-] at air density ρ [kg/m³] 1.150 1.175 1.200 1.225 1.250 1.275 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 0.883 0.845 0.828 0.829 0.813 0.838 0.837 0.837 0.807 0.755 0.706 0.657 0.610 0.566 0.526 0.447 0.375 0.321 0.279 0.244 0.216 0.192 0.172 0.154 0.139 0.126 0.115 0.105 0.097 0.089 0.082 0.076 0.071 0.066 0.061 0.884 0.847 0.832 0.832 0.817 0.838 0.837 0.837 0.807 0.756 0.708 0.659 0.612 0.568 0.528 0.433 0.365 0.313 0.272 0.239 0.211 0.188 0.168 0.151 0.136 0.124 0.113 0.103 0.095 0.087 0.081 0.075 0.069 0.064 0.060 F008_246_A12_EN 0.885 0.848 0.836 0.836 0.822 0.838 0.837 0.837 0.808 0.757 0.709 0.661 0.614 0.570 0.518 0.421 0.356 0.306 0.266 0.233 0.206 0.184 0.164 0.148 0.134 0.121 0.111 0.101 0.093 0.086 0.079 0.073 0.068 0.063 0.059 0.886 0.850 0.840 0.839 0.828 0.838 0.837 0.837 0.809 0.758 0.710 0.662 0.615 0.572 0.498 0.410 0.347 0.299 0.260 0.228 0.202 0.180 0.161 0.145 0.131 0.119 0.108 0.099 0.091 0.084 0.077 0.072 0.067 0.062 0.058 Revision 00, 2014-02-20 0.887 0.852 0.844 0.843 0.833 0.838 0.837 0.837 0.810 0.758 0.710 0.663 0.616 0.573 0.482 0.399 0.339 0.292 0.255 0.224 0.198 0.176 0.158 0.142 0.128 0.117 0.106 0.097 0.089 0.082 0.076 0.070 0.065 0.061 0.057 0.888 0.853 0.848 0.846 0.838 0.838 0.837 0.837 0.811 0.759 0.711 0.664 0.616 0.574 0.469 0.390 0.332 0.286 0.249 0.219 0.194 0.173 0.155 0.139 0.126 0.115 0.104 0.096 0.088 0.081 0.075 0.069 0.064 0.060 0.056 0.889 0.855 0.852 0.850 0.843 0.838 0.837 0.837 0.812 0.760 0.712 0.665 0.617 0.573 0.456 0.381 0.325 0.280 0.244 0.215 0.190 0.169 0.152 0.137 0.124 0.112 0.103 0.094 0.086 0.079 0.073 0.068 0.063 0.059 0.055 1.300 0.890 0.856 0.855 0.853 0.848 0.838 0.837 0.837 0.812 0.760 0.712 0.665 0.618 0.551 0.445 0.373 0.318 0.274 0.239 0.211 0.187 0.166 0.149 0.134 0.121 0.110 0.101 0.092 0.085 0.078 0.072 0.067 0.062 0.058 0.054 25 / 81 Noise level, Power curves, Thrust curves Noise level - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 dB(A) Basis: The specified sound power level is an expected value in terms of statistics. Results of single measurements will be within the confidence interval according to IEC 61400-14 [4]. Wind turbine data: Operational mode: Mode 3 / Sound optimized mode - 103.0 dB(A) Rotor diameter: 131 m Remarks: Verification according to: Measurements are to be carried out by a measuring institute accredited for noise emission measurements at wind turbines according to ISO/IEC 17025 [3] at the reference position as defined in IEC 61400-11 [1]. The data analysis must be carried out according to the preferred method 1 of IEC 61400-11 [1]. The tonal penalties in the vicinity of wind turbines KTN based on these measurements are to be determined according to „Technische Richtlinien für Windenergieanlagen“ [2]. Tonality: The noise can be tonal in the vicinity of wind turbines. The specified sound power level includes potential tonal penalties according to „Technische Richtlinien für Windenergieanlagen“ [2], without taking account any tonality KTN ≤ 2 dB. [1] IEC 61400-11 ed. 2: Wind Turbine Generator Systems – Part 11: Acoustic Noise Measurement Techniques; 2002-12 [2] Technische Richtlinie für Windenergieanlagen – Teil 1: Bestimmung der Schallemissionswerte, Revision 18; FGW 2008-02 [3] ISO/IEC 17025: General requirements for the competence of testing and calibration laboratories; 2005-08 [4] IEC 61400-14, Wind turbines – Part 14: Declaration of apparent sound power level and tonality values, first edition, 2005-03 F008_246_A12_EN Revision 00, 2014-02-20 26 / 81 Noise level, Power curves, Thrust curves Noise level - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 dB(A) Maximum sound power level LWA [dB(A)] over the complete operating range of the turbine 103.0 F008_246_A12_EN Revision 00, 2014-02-20 27 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 dB(A) Basis: These power curve values according to IEC 61400-12-1 are based on aerodynamic calculations by Nordex Energy GmbH. Wind turbine data: Operational mode: Mode 3 / Sound optimized mode - 103.0 dB(A) Rotor diameter: 131 m Determinations for the power curve verification: Verification according to: IEC 61400-12-1:2005 Type of anemometer: Thies First Class (Advanced), Risø P2546A or Vector A100 Measurement of power: low voltage side, 660 VAC Air density: normalization to the nearest air density shown in the table Filter of turbulence: 9 % ≤ TI ≤ 15 % Filter of wind shear: a ≤ 0.2 (Hellman exponent) Wind shear measurement and determination according to the requirements of MEASNET power performance measurement procedure, Version 5, December – 2009, chapter 3.3 and 3.8 Filter of temperature: 2 °C ≤ θ ≤ 25 °C Status signal: Ready for operation without consideration of the cut-out hysteresis (IEC 61400-12-1:2005, database B) F008_246_A12_EN Revision 00, 2014-02-20 28 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 dB(A) wind speed vhub [m/s] 0.900 0.925 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 11 63 128 210 310 431 575 739 918 1105 1293 1479 1662 1840 2015 2188 2354 2492 2599 2679 2735 2771 2787 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 13 66 133 217 320 445 592 761 945 1138 1333 1526 1715 1901 2082 2262 2425 2551 2646 2715 2761 2786 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 F008_246_A12_EN Power Pel [kW] at air density ρ [kg/m³] 0.950 0.975 1.000 1.025 1.050 1.075 15 69 138 225 331 458 609 783 973 1173 1374 1574 1770 1961 2150 2330 2481 2596 2680 2739 2774 2788 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 16 73 143 232 341 471 627 805 1001 1207 1415 1622 1825 2023 2218 2398 2537 2641 2714 2762 2787 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 Revision 00, 2014-02-20 18 76 148 239 351 485 644 827 1029 1241 1456 1670 1880 2085 2283 2452 2580 2673 2737 2774 2789 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 19 79 153 247 361 498 661 849 1057 1276 1498 1719 1936 2148 2347 2505 2622 2705 2758 2785 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 21 82 158 254 371 511 679 872 1084 1310 1539 1767 1990 2208 2402 2549 2656 2729 2772 2789 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 23 85 163 261 381 525 696 894 1112 1344 1580 1814 2045 2267 2451 2589 2685 2748 2781 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 1.100 24 88 168 269 391 538 713 916 1140 1378 1620 1862 2100 2326 2500 2628 2714 2767 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 29 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 dB(A) wind speed vhub [m/s] 1.125 1.150 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 26 91 173 276 401 551 731 938 1167 1412 1661 1910 2154 2373 2537 2655 2732 2775 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 28 94 178 283 411 565 748 960 1195 1446 1703 1958 2209 2419 2574 2682 2750 2782 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 F008_246_A12_EN Power Pel [kW] at air density ρ [kg/m³] 1.175 1.200 1.225 1.250 1.275 29 97 183 290 421 578 765 982 1223 1480 1744 2007 2263 2465 2610 2709 2767 2789 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 31 101 188 298 431 592 782 1004 1250 1514 1784 2054 2308 2501 2637 2727 2775 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 Revision 00, 2014-02-20 32 104 193 305 441 605 800 1026 1277 1546 1823 2100 2347 2532 2660 2741 2780 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 34 107 198 312 451 618 817 1048 1304 1579 1862 2146 2387 2563 2683 2756 2785 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 36 110 203 319 461 632 834 1069 1331 1612 1901 2192 2427 2595 2706 2770 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 1.300 37 113 208 327 471 645 851 1091 1359 1645 1941 2231 2459 2618 2721 2777 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 2790 30 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 dB(A) Basis: The represented thrust coefficients are based on aerodynamical calculations of the Nordex Energy GmbH. The thrust curves are only for information and will not be warranted. Wind turbine data: Operational mode: Mode 3 / Sound optimized mode - 103.0 dB(A) Blade regulation: Pitch Air density: to the nearest air density shown in the table F008_246_A12_EN Revision 00, 2014-02-20 31 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 dB(A) wind speed vhub [m/s] 0.900 Thrust coefficients cT [-] at air density ρ [kg/m³] 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 0.874 0.831 0.795 0.787 0.776 0.839 0.838 0.830 0.764 0.706 0.651 0.598 0.551 0.508 0.469 0.435 0.405 0.377 0.353 0.310 0.268 0.237 0.210 0.188 0.170 0.153 0.139 0.127 0.116 0.107 0.098 0.091 0.084 0.078 0.073 0.875 0.832 0.797 0.792 0.780 0.839 0.838 0.831 0.766 0.709 0.654 0.601 0.554 0.511 0.473 0.439 0.408 0.380 0.356 0.297 0.259 0.229 0.204 0.183 0.165 0.149 0.136 0.124 0.113 0.104 0.096 0.089 0.082 0.076 0.071 0.882 0.843 0.824 0.825 0.809 0.838 0.837 0.836 0.779 0.727 0.676 0.625 0.578 0.535 0.496 0.461 0.375 0.320 0.277 0.243 0.215 0.191 0.171 0.153 0.139 0.126 0.115 0.105 0.096 0.088 0.082 0.076 0.070 0.065 0.061 F008_246_A12_EN 0.876 0.834 0.801 0.797 0.784 0.839 0.838 0.832 0.768 0.711 0.658 0.605 0.558 0.515 0.476 0.442 0.411 0.383 0.333 0.287 0.252 0.223 0.198 0.178 0.160 0.145 0.132 0.120 0.110 0.101 0.094 0.086 0.080 0.074 0.069 0.877 0.835 0.805 0.801 0.789 0.839 0.838 0.833 0.770 0.714 0.661 0.608 0.561 0.518 0.480 0.445 0.414 0.387 0.321 0.278 0.244 0.216 0.193 0.173 0.156 0.141 0.129 0.117 0.108 0.099 0.091 0.084 0.078 0.073 0.068 Revision 00, 2014-02-20 0.878 0.837 0.809 0.806 0.793 0.839 0.838 0.834 0.772 0.717 0.665 0.612 0.565 0.522 0.484 0.449 0.418 0.364 0.310 0.270 0.237 0.211 0.188 0.169 0.152 0.138 0.126 0.115 0.105 0.097 0.089 0.082 0.076 0.071 0.066 0.879 0.839 0.813 0.811 0.797 0.838 0.837 0.835 0.775 0.720 0.668 0.617 0.570 0.527 0.488 0.453 0.422 0.350 0.301 0.262 0.231 0.205 0.183 0.165 0.149 0.135 0.123 0.112 0.103 0.094 0.087 0.081 0.075 0.069 0.065 0.880 0.840 0.817 0.815 0.801 0.838 0.837 0.836 0.776 0.723 0.671 0.619 0.572 0.530 0.491 0.456 0.403 0.338 0.292 0.255 0.225 0.200 0.179 0.161 0.145 0.132 0.120 0.109 0.100 0.092 0.085 0.079 0.073 0.068 0.063 0.881 0.842 0.821 0.820 0.805 0.838 0.837 0.836 0.778 0.725 0.673 0.622 0.575 0.532 0.493 0.459 0.387 0.329 0.285 0.249 0.220 0.195 0.175 0.157 0.142 0.129 0.117 0.107 0.098 0.090 0.083 0.077 0.072 0.067 0.062 32 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 dB(A) wind speed vhub [m/s] 1.125 Thrust coefficients cT [-] at air density ρ [kg/m³] 1.150 1.175 1.200 1.225 1.250 1.275 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 0.883 0.845 0.828 0.829 0.813 0.838 0.837 0.836 0.781 0.729 0.679 0.628 0.581 0.538 0.499 0.437 0.364 0.312 0.271 0.237 0.210 0.186 0.167 0.150 0.136 0.123 0.112 0.103 0.094 0.087 0.080 0.074 0.069 0.064 0.060 0.884 0.847 0.832 0.832 0.817 0.838 0.837 0.836 0.782 0.731 0.681 0.631 0.584 0.541 0.503 0.421 0.354 0.304 0.264 0.232 0.205 0.182 0.163 0.147 0.133 0.120 0.110 0.100 0.092 0.085 0.078 0.073 0.067 0.063 0.058 F008_246_A12_EN 0.885 0.848 0.836 0.836 0.822 0.838 0.837 0.836 0.784 0.734 0.684 0.634 0.588 0.545 0.506 0.409 0.345 0.297 0.258 0.227 0.200 0.178 0.160 0.144 0.130 0.118 0.108 0.098 0.090 0.083 0.077 0.071 0.066 0.062 0.057 0.886 0.850 0.840 0.839 0.827 0.838 0.837 0.836 0.785 0.734 0.686 0.635 0.589 0.546 0.484 0.397 0.337 0.290 0.253 0.222 0.196 0.175 0.157 0.141 0.127 0.116 0.106 0.097 0.089 0.082 0.075 0.070 0.065 0.060 0.056 Revision 00, 2014-02-20 0.887 0.851 0.844 0.843 0.832 0.838 0.837 0.836 0.785 0.734 0.686 0.636 0.590 0.548 0.468 0.387 0.329 0.284 0.247 0.217 0.192 0.171 0.153 0.138 0.125 0.114 0.104 0.095 0.087 0.080 0.074 0.069 0.064 0.059 0.055 0.888 0.853 0.848 0.846 0.838 0.838 0.837 0.836 0.785 0.735 0.686 0.637 0.591 0.549 0.454 0.378 0.322 0.278 0.242 0.213 0.188 0.168 0.150 0.135 0.123 0.111 0.102 0.093 0.085 0.079 0.073 0.067 0.063 0.058 0.054 0.889 0.855 0.851 0.850 0.843 0.838 0.837 0.836 0.786 0.735 0.687 0.638 0.592 0.550 0.442 0.369 0.315 0.272 0.237 0.209 0.185 0.165 0.148 0.133 0.120 0.109 0.100 0.091 0.084 0.077 0.071 0.066 0.062 0.057 0.054 1.300 0.890 0.856 0.855 0.853 0.848 0.837 0.837 0.836 0.787 0.736 0.688 0.639 0.593 0.533 0.431 0.361 0.308 0.266 0.232 0.204 0.181 0.162 0.145 0.130 0.118 0.107 0.098 0.090 0.082 0.076 0.070 0.065 0.061 0.056 0.053 33 / 81 Noise level, Power curves, Thrust curves Noise level - Nordex N131/3000 Mode 4 / Sound optimized mode - 102.5 dB(A) Basis: The specified sound power level is an expected value in terms of statistics. Results of single measurements will be within the confidence interval according to IEC 61400-14 [4]. Wind turbine data: Operational mode: Mode 4 / Sound optimized mode - 102.5 dB(A) Rotor diameter: 131 m Remarks: Verification according to: Measurements are to be carried out by a measuring institute accredited for noise emission measurements at wind turbines according to ISO/IEC 17025 [3] at the reference position as defined in IEC 61400-11 [1]. The data analysis must be carried out according to the preferred method 1 of IEC 61400-11 [1]. The tonal penalties in the vicinity of wind turbines KTN based on these measurements are to be determined according to „Technische Richtlinien für Windenergieanlagen“ [2]. Tonality: The noise can be tonal in the vicinity of wind turbines. The specified sound power level includes potential tonal penalties according to „Technische Richtlinien für Windenergieanlagen“ [2], without taking account any tonality KTN ≤ 2 dB. [1] IEC 61400-11 ed. 2: Wind Turbine Generator Systems – Part 11: Acoustic Noise Measurement Techniques; 2002-12 [2] Technische Richtlinie für Windenergieanlagen – Teil 1: Bestimmung der Schallemissionswerte, Revision 18; FGW 2008-02 [3] ISO/IEC 17025: General requirements for the competence of testing and calibration laboratories; 2005-08 [4] IEC 61400-14, Wind turbines – Part 14: Declaration of apparent sound power level and tonality values, first edition, 2005-03 F008_246_A12_EN Revision 00, 2014-02-20 34 / 81 Noise level, Power curves, Thrust curves Noise level - Nordex N131/3000 Mode 4 / Sound optimized mode - 102.5 dB(A) Maximum sound power level LWA [dB(A)] over the complete operating range of the turbine 102.5 F008_246_A12_EN Revision 00, 2014-02-20 35 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 4 / Sound optimized mode - 102.5 dB(A) Basis: These power curve values according to IEC 61400-12-1 are based on aerodynamic calculations by Nordex Energy GmbH. Wind turbine data: Operational mode: Mode 4 / Sound optimized mode - 102.5 dB(A) Rotor diameter: 131 m Determinations for the power curve verification: Verification according to: IEC 61400-12-1:2005 Type of anemometer: Thies First Class (Advanced), Risø P2546A or Vector A100 Measurement of power: low voltage side, 660 VAC Air density: normalization to the nearest air density shown in the table Filter of turbulence: 9 % ≤ TI ≤ 15 % Filter of wind shear: a ≤ 0.2 (Hellman exponent) Wind shear measurement and determination according to the requirements of MEASNET power performance measurement procedure, Version 5, December – 2009, chapter 3.3 and 3.8 Filter of temperature: 2 °C ≤ θ ≤ 25 °C Status signal: Ready for operation without consideration of the cut-out hysteresis (IEC 61400-12-1:2005, database B) F008_246_A12_EN Revision 00, 2014-02-20 36 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 4 / Sound optimized mode - 102.5 dB(A) wind speed vhub [m/s] 0.900 0.925 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 11 63 128 210 310 431 574 739 916 1099 1281 1457 1628 1795 1958 2120 2280 2419 2527 2610 2670 2709 2730 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 13 66 133 217 320 444 592 761 943 1132 1319 1501 1679 1852 2021 2189 2347 2475 2572 2644 2694 2723 2734 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 F008_246_A12_EN Power Pel [kW] at air density ρ [kg/m³] 0.950 0.975 1.000 1.025 1.050 1.075 14 69 138 224 330 458 609 782 970 1164 1357 1546 1730 1909 2084 2257 2408 2524 2611 2673 2712 2732 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 16 72 143 232 340 471 626 804 997 1197 1396 1591 1781 1967 2149 2322 2461 2567 2644 2696 2725 2734 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 Revision 00, 2014-02-20 18 76 148 239 350 484 643 826 1024 1230 1435 1637 1833 2025 2213 2381 2510 2605 2672 2713 2733 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 19 79 153 246 360 498 661 848 1051 1263 1475 1683 1886 2085 2275 2432 2551 2636 2693 2724 2734 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 21 82 158 254 371 511 678 869 1078 1296 1514 1729 1939 2145 2337 2483 2591 2666 2713 2734 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 23 85 163 261 381 524 695 891 1105 1329 1554 1776 1993 2203 2384 2521 2619 2685 2721 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 1.100 24 88 168 268 391 538 712 913 1133 1363 1595 1823 2047 2261 2433 2560 2648 2704 2730 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 37 / 81 Noise level, Power curves, Thrust curves Power curves - Nordex N131/3000 Mode 4 / Sound optimized mode - 102.5 dB(A) wind speed vhub [m/s] 1.125 1.150 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 26 91 173 276 401 551 730 935 1160 1397 1635 1871 2101 2314 2476 2593 2671 2718 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 27 94 178 283 411 564 747 957 1188 1431 1676 1919 2155 2360 2512 2619 2688 2724 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 F008_246_A12_EN Power Pel [kW] at air density ρ [kg/m³] 1.175 1.200 1.225 1.250 1.275 29 97 183 290 421 578 764 979 1216 1465 1718 1967 2209 2405 2547 2645 2705 2731 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 31 100 188 297 431 591 782 1001 1243 1498 1757 2013 2258 2446 2580 2668 2719 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 Revision 00, 2014-02-20 32 104 193 305 441 604 799 1023 1270 1531 1796 2059 2298 2477 2602 2683 2724 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 34 107 198 312 451 618 816 1045 1297 1564 1835 2105 2337 2508 2625 2697 2729 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 36 110 203 319 461 631 833 1066 1324 1596 1874 2150 2377 2539 2647 2711 2733 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 1.300 37 113 208 326 471 644 851 1088 1351 1629 1913 2193 2413 2567 2667 2722 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 2735 38 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 4 / Sound optimized mode - 102.5 dB(A) Basis: The represented thrust coefficients are based on aerodynamical calculations of the Nordex Energy GmbH. The thrust curves are only for information and will not be warranted. Wind turbine data: Operational mode: Mode 4 / Sound optimized mode - 102.5 dB(A) Blade regulation: Pitch Air density: to the nearest air density shown in the table F008_246_A12_EN Revision 00, 2014-02-20 39 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 4 / Sound optimized mode - 102.5 dB(A) wind speed vhub [m/s] 0.900 Thrust coefficients cT [-] at air density ρ [kg/m³] 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 0.874 0.831 0.795 0.787 0.776 0.839 0.838 0.819 0.769 0.708 0.646 0.589 0.539 0.495 0.456 0.421 0.391 0.364 0.340 0.308 0.264 0.232 0.207 0.185 0.167 0.151 0.137 0.125 0.114 0.105 0.097 0.089 0.083 0.077 0.072 0.875 0.832 0.797 0.792 0.780 0.839 0.838 0.819 0.770 0.708 0.646 0.591 0.541 0.497 0.458 0.424 0.393 0.366 0.342 0.293 0.255 0.225 0.200 0.180 0.162 0.146 0.133 0.121 0.111 0.102 0.094 0.087 0.081 0.075 0.070 0.882 0.843 0.824 0.825 0.809 0.838 0.837 0.824 0.767 0.713 0.659 0.607 0.559 0.516 0.478 0.444 0.368 0.313 0.272 0.238 0.210 0.187 0.167 0.150 0.136 0.123 0.112 0.103 0.094 0.087 0.080 0.074 0.069 0.064 0.060 F008_246_A12_EN 0.876 0.834 0.801 0.796 0.784 0.838 0.837 0.820 0.770 0.708 0.647 0.592 0.543 0.499 0.460 0.426 0.395 0.368 0.330 0.282 0.247 0.219 0.195 0.175 0.157 0.143 0.130 0.118 0.108 0.100 0.092 0.085 0.079 0.073 0.068 0.877 0.835 0.805 0.801 0.789 0.838 0.837 0.821 0.769 0.708 0.649 0.594 0.545 0.501 0.463 0.429 0.398 0.371 0.316 0.273 0.240 0.212 0.189 0.170 0.153 0.139 0.126 0.115 0.106 0.097 0.090 0.083 0.077 0.071 0.066 Revision 00, 2014-02-20 0.878 0.837 0.809 0.806 0.793 0.838 0.837 0.821 0.768 0.708 0.650 0.596 0.548 0.504 0.466 0.431 0.401 0.360 0.304 0.265 0.233 0.207 0.184 0.166 0.149 0.135 0.123 0.113 0.103 0.095 0.087 0.081 0.075 0.070 0.065 0.879 0.839 0.812 0.811 0.797 0.838 0.837 0.822 0.767 0.709 0.652 0.598 0.551 0.507 0.469 0.435 0.404 0.344 0.295 0.257 0.227 0.201 0.180 0.161 0.146 0.132 0.120 0.110 0.101 0.093 0.085 0.079 0.073 0.068 0.064 0.880 0.840 0.816 0.815 0.801 0.838 0.837 0.823 0.767 0.710 0.654 0.601 0.553 0.510 0.472 0.438 0.402 0.332 0.287 0.251 0.221 0.196 0.175 0.158 0.142 0.129 0.117 0.107 0.098 0.091 0.084 0.077 0.072 0.067 0.062 0.881 0.842 0.820 0.820 0.805 0.838 0.837 0.823 0.767 0.711 0.656 0.604 0.556 0.513 0.475 0.441 0.381 0.322 0.279 0.244 0.215 0.192 0.171 0.154 0.139 0.126 0.115 0.105 0.096 0.089 0.082 0.076 0.070 0.065 0.061 40 / 81 Noise level, Power curves, Thrust curves Thrust curves - Nordex N131/3000 Mode 4 / Sound optimized mode - 102.5 dB(A) wind speed vhub [m/s] 1.125 Thrust coefficients cT [-] at air density ρ [kg/m³] 1.150 1.175 1.200 1.225 1.250 1.275 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 0.883 0.845 0.828 0.829 0.813 0.838 0.837 0.824 0.768 0.715 0.661 0.610 0.563 0.520 0.482 0.431 0.356 0.305 0.265 0.233 0.206 0.183 0.164 0.147 0.133 0.121 0.110 0.101 0.092 0.085 0.078 0.073 0.067 0.063 0.059 0.884 0.847 0.832 0.832 0.817 0.838 0.837 0.825 0.769 0.717 0.665 0.613 0.567 0.524 0.485 0.414 0.347 0.298 0.259 0.227 0.201 0.179 0.160 0.144 0.130 0.118 0.108 0.099 0.090 0.083 0.077 0.071 0.066 0.062 0.057 F008_246_A12_EN 0.885 0.848 0.836 0.836 0.822 0.838 0.837 0.826 0.770 0.719 0.668 0.617 0.571 0.528 0.489 0.401 0.338 0.291 0.253 0.222 0.197 0.175 0.157 0.141 0.128 0.116 0.106 0.097 0.089 0.082 0.075 0.070 0.065 0.060 0.056 0.886 0.850 0.840 0.839 0.827 0.838 0.837 0.826 0.771 0.720 0.669 0.619 0.572 0.530 0.479 0.389 0.330 0.284 0.247 0.217 0.192 0.171 0.153 0.138 0.125 0.114 0.104 0.095 0.087 0.080 0.074 0.069 0.064 0.059 0.055 Revision 00, 2014-02-20 0.887 0.851 0.844 0.843 0.832 0.838 0.837 0.826 0.771 0.720 0.670 0.619 0.573 0.531 0.458 0.379 0.322 0.278 0.242 0.213 0.188 0.168 0.150 0.135 0.123 0.111 0.102 0.093 0.085 0.079 0.073 0.067 0.063 0.058 0.054 0.888 0.853 0.847 0.846 0.838 0.837 0.837 0.826 0.771 0.721 0.671 0.620 0.574 0.532 0.444 0.370 0.315 0.272 0.237 0.208 0.185 0.165 0.147 0.133 0.120 0.109 0.100 0.091 0.084 0.077 0.071 0.066 0.061 0.057 0.053 0.889 0.855 0.851 0.849 0.843 0.837 0.837 0.826 0.771 0.721 0.671 0.621 0.576 0.533 0.432 0.361 0.308 0.266 0.232 0.204 0.181 0.161 0.145 0.130 0.118 0.107 0.098 0.090 0.082 0.076 0.070 0.065 0.060 0.056 0.053 1.300 0.890 0.856 0.855 0.853 0.848 0.837 0.837 0.826 0.771 0.721 0.672 0.622 0.577 0.524 0.421 0.353 0.302 0.261 0.228 0.200 0.178 0.158 0.142 0.128 0.116 0.105 0.096 0.088 0.081 0.075 0.069 0.064 0.059 0.055 0.052 41 / 81
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