Regionalny Dyrektor Ochrony Środowiska ul. 28 czerwca 1956 Poznań

CENTRALNA GRUPA ENERGETYCZNA S.A. Konin, dnia 15-09-2014 62-510 Konin, Spółdzielców 3 Tel: +48 606 877 966 / +48 63 2406859 e-mail: sekretariat@cgesa.pl 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 2800 moc turbiny [kw] dla gęstości powietrza 1,225 [g/cm3] 2600 2400 2200 2000 1800 1600 1400 1200 1000 6 8 10 12 14 16 18 104,5 104,0 103,5 103,0 102,5 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 - 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: Rotor diameter: Standard mode 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 K TN 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 K TN 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 - Nordex N131/3000 Standard mode Maximum sound power level L WA [db(a)] over the complete operating range of the turbine 104.5 F008_246_A02_EN Revision 00, 2013-11-21 3 / 9

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: Rotor diameter: Standard mode 131 m Determinations for the power curve verification: Verification according to: IEC 61400-12-1:2005 Type of anemometer: Measurement of power: Air density: Thies First Class (Advanced), Risø P2546A or Vector A100 low voltage side, 660 VAC Filter of turbulence: 9 % TI 15 % Filter of wind shear: Filter of temperature: 2 C θ 25 C Status signal: normalization to the nearest air density shown in the table 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 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

Power curves - Nordex N131/3000 Standard mode wind speed v hub [m/s] Power P el [kw] at air density ρ [kg/m³] 0.900 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 11 13 15 16 18 20 21 23 24 3.5 64 67 70 73 76 79 82 85 89 4.0 129 134 139 144 149 154 159 164 169 4.5 210 218 225 233 240 247 255 262 269 5.0 311 321 332 342 352 362 372 382 392 5.5 432 446 459 473 486 500 513 526 540 6.0 577 594 612 629 646 664 681 698 716 6.5 746 768 790 812 834 856 878 900 922 7.0 941 968 995 1023 1051 1078 1106 1133 1161 7.5 1155 1188 1222 1256 1290 1324 1358 1392 1426 8.0 1380 1421 1461 1503 1544 1586 1628 1670 1712 8.5 1609 1657 1706 1755 1805 1855 1906 1957 2006 9.0 1836 1892 1949 2006 2065 2124 2183 2242 2298 9.5 2057 2122 2187 2254 2319 2384 2448 2502 2550 10.0 2274 2347 2417 2487 2547 2601 2655 2698 2736 10.5 2480 2555 2613 2670 2720 2763 2806 2839 2867 11.0 2652 2713 2760 2806 2845 2877 2909 2931 2949 11.5 2782 2831 2867 2902 2929 2950 2971 2982 2989 12.0 2878 2915 2939 2963 2979 2988 2998 3000 3000 12.5 2943 2969 2982 2994 2999 3000 3000 3000 3000 13.0 2982 2997 2999 3000 3000 3000 3000 3000 3000 13.5 2998 3000 3000 3000 3000 3000 3000 3000 3000 14.0 3000 3000 3000 3000 3000 3000 3000 3000 3000 14.5 3000 3000 3000 3000 3000 3000 3000 3000 3000 15.0 3000 3000 3000 3000 3000 3000 3000 3000 3000 15.5 3000 3000 3000 3000 3000 3000 3000 3000 3000 16.0 3000 3000 3000 3000 3000 3000 3000 3000 3000 16.5 3000 3000 3000 3000 3000 3000 3000 3000 3000 17.0 3000 3000 3000 3000 3000 3000 3000 3000 3000 17.5 3000 3000 3000 3000 3000 3000 3000 3000 3000 18.0 3000 3000 3000 3000 3000 3000 3000 3000 3000 18.5 3000 3000 3000 3000 3000 3000 3000 3000 3000 19.0 3000 3000 3000 3000 3000 3000 3000 3000 3000 19.5 3000 3000 3000 3000 3000 3000 3000 3000 3000 20.0 3000 3000 3000 3000 3000 3000 3000 3000 3000 F008_246_A02_EN Revision 00, 2013-11-21 5 / 9

Power curves - Nordex N131/3000 Standard mode wind speed v hub [m/s] Power P el [kw] at air density ρ [kg/m³] 1.125 1.150 1.175 1.200 1.225 1.250 1.275 1.300 3.0 26 28 29 31 33 34 36 37 3.5 92 95 98 101 104 107 110 113 4.0 174 179 184 189 194 199 203 208 4.5 277 284 291 299 306 313 320 328 5.0 402 412 422 432 442 453 463 473 5.5 553 567 580 593 607 620 633 647 6.0 733 750 768 785 802 819 837 854 6.5 944 966 988 1010 1032 1054 1076 1098 7.0 1188 1216 1243 1271 1298 1326 1353 1380 7.5 1460 1494 1528 1561 1595 1629 1663 1696 8.0 1752 1793 1834 1875 1915 1956 1998 2039 8.5 2055 2103 2152 2201 2250 2299 2336 2373 9.0 2355 2405 2448 2490 2533 2575 2605 2634 9.5 2598 2640 2673 2706 2740 2774 2795 2816 10.0 2775 2807 2832 2856 2881 2906 2919 2932 10.5 2895 2919 2934 2950 2965 2981 2985 2988 11.0 2968 2981 2986 2992 2997 3000 3000 3000 11.5 2997 3000 3000 3000 3000 3000 3000 3000 12.0 3000 3000 3000 3000 3000 3000 3000 3000 12.5 3000 3000 3000 3000 3000 3000 3000 3000 13.0 3000 3000 3000 3000 3000 3000 3000 3000 13.5 3000 3000 3000 3000 3000 3000 3000 3000 14.0 3000 3000 3000 3000 3000 3000 3000 3000 14.5 3000 3000 3000 3000 3000 3000 3000 3000 15.0 3000 3000 3000 3000 3000 3000 3000 3000 15.5 3000 3000 3000 3000 3000 3000 3000 3000 16.0 3000 3000 3000 3000 3000 3000 3000 3000 16.5 3000 3000 3000 3000 3000 3000 3000 3000 17.0 3000 3000 3000 3000 3000 3000 3000 3000 17.5 3000 3000 3000 3000 3000 3000 3000 3000 18.0 3000 3000 3000 3000 3000 3000 3000 3000 18.5 3000 3000 3000 3000 3000 3000 3000 3000 19.0 3000 3000 3000 3000 3000 3000 3000 3000 19.5 3000 3000 3000 3000 3000 3000 3000 3000 20.0 3000 3000 3000 3000 3000 3000 3000 3000 F008_246_A02_EN Revision 00, 2013-11-21 6 / 9

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: Blade regulation: Air density: Standard mode Pitch to the nearest air density shown in the table F008_246_A02_EN Revision 00, 2013-11-21 7 / 9

Thrust curves - Nordex N131/3000 Standard mode wind speed v hub [m/s] Thrust coefficients c T [-] at air density ρ [kg/m³] 0.900 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 0.874 0.875 0.876 0.877 0.878 0.879 0.880 0.881 0.882 3.5 0.831 0.832 0.834 0.836 0.837 0.839 0.840 0.842 0.844 4.0 0.795 0.797 0.801 0.805 0.809 0.813 0.817 0.821 0.825 4.5 0.787 0.792 0.797 0.802 0.806 0.811 0.816 0.821 0.826 5.0 0.776 0.781 0.785 0.789 0.793 0.797 0.801 0.806 0.810 5.5 0.840 0.839 0.839 0.839 0.839 0.839 0.839 0.839 0.839 6.0 0.839 0.839 0.838 0.838 0.838 0.838 0.838 0.838 0.838 6.5 0.838 0.838 0.838 0.838 0.838 0.837 0.837 0.837 0.837 7.0 0.836 0.836 0.837 0.837 0.837 0.837 0.837 0.837 0.837 7.5 0.790 0.791 0.791 0.792 0.793 0.794 0.795 0.796 0.797 8.0 0.745 0.745 0.745 0.746 0.747 0.749 0.751 0.754 0.756 8.5 0.691 0.693 0.694 0.697 0.700 0.703 0.707 0.712 0.714 9.0 0.639 0.641 0.644 0.647 0.651 0.656 0.660 0.666 0.668 9.5 0.591 0.594 0.598 0.602 0.606 0.611 0.616 0.622 0.625 10.0 0.548 0.552 0.555 0.560 0.564 0.569 0.574 0.580 0.582 10.5 0.509 0.512 0.516 0.520 0.525 0.530 0.535 0.504 0.485 11.0 0.474 0.477 0.481 0.486 0.464 0.445 0.430 0.416 0.404 11.5 0.442 0.446 0.417 0.401 0.387 0.375 0.365 0.355 0.345 12.0 0.382 0.367 0.354 0.343 0.333 0.324 0.315 0.307 0.299 12.5 0.328 0.317 0.307 0.298 0.290 0.282 0.275 0.268 0.262 13.0 0.287 0.278 0.270 0.262 0.255 0.249 0.243 0.237 0.231 13.5 0.253 0.246 0.239 0.232 0.226 0.221 0.215 0.210 0.205 14.0 0.225 0.219 0.213 0.207 0.202 0.197 0.192 0.188 0.183 14.5 0.202 0.196 0.191 0.186 0.181 0.177 0.173 0.169 0.165 15.0 0.182 0.177 0.172 0.168 0.163 0.159 0.156 0.152 0.149 15.5 0.164 0.160 0.156 0.152 0.148 0.145 0.141 0.138 0.135 16.0 0.149 0.145 0.142 0.138 0.135 0.131 0.128 0.126 0.123 16.5 0.136 0.133 0.129 0.126 0.123 0.120 0.117 0.115 0.112 17.0 0.125 0.121 0.118 0.115 0.113 0.110 0.108 0.105 0.103 17.5 0.114 0.111 0.109 0.106 0.104 0.101 0.099 0.097 0.095 18.0 0.105 0.103 0.100 0.098 0.095 0.093 0.091 0.089 0.087 18.5 0.097 0.095 0.093 0.090 0.088 0.086 0.084 0.083 0.081 19.0 0.090 0.088 0.086 0.084 0.082 0.080 0.078 0.077 0.075 19.5 0.084 0.082 0.080 0.078 0.076 0.074 0.073 0.071 0.070 20.0 0.078 0.076 0.074 0.072 0.071 0.069 0.068 0.066 0.065 F008_246_A02_EN Revision 00, 2013-11-21 8 / 9

Thrust curves - Nordex N131/3000 Standard mode wind speed v hub [m/s] Thrust coefficients c T [-] at air density ρ [kg/m³] 1.125 1.150 1.175 1.200 1.225 1.250 1.275 1.300 3.0 0.883 0.884 0.885 0.886 0.887 0.888 0.889 0.890 3.5 0.845 0.847 0.848 0.850 0.852 0.853 0.855 0.856 4.0 0.829 0.833 0.836 0.840 0.844 0.848 0.852 0.856 4.5 0.829 0.833 0.836 0.840 0.843 0.847 0.850 0.853 5.0 0.814 0.818 0.823 0.828 0.833 0.838 0.844 0.849 5.5 0.839 0.839 0.839 0.839 0.839 0.838 0.838 0.838 6.0 0.838 0.838 0.838 0.838 0.838 0.837 0.838 0.838 6.5 0.837 0.837 0.837 0.837 0.837 0.837 0.837 0.837 7.0 0.837 0.837 0.837 0.837 0.837 0.837 0.837 0.837 7.5 0.797 0.798 0.799 0.800 0.801 0.802 0.802 0.803 8.0 0.757 0.758 0.759 0.760 0.761 0.762 0.763 0.764 8.5 0.715 0.716 0.718 0.719 0.720 0.722 0.723 0.724 9.0 0.670 0.671 0.673 0.675 0.676 0.678 0.680 0.681 9.5 0.626 0.628 0.630 0.632 0.634 0.636 0.606 0.585 10.0 0.585 0.565 0.542 0.525 0.509 0.495 0.482 0.470 10.5 0.469 0.456 0.443 0.431 0.421 0.410 0.401 0.392 11.0 0.393 0.383 0.374 0.365 0.357 0.349 0.341 0.334 11.5 0.337 0.329 0.321 0.314 0.307 0.300 0.294 0.288 12.0 0.292 0.285 0.279 0.273 0.267 0.261 0.256 0.251 12.5 0.256 0.250 0.245 0.239 0.234 0.229 0.225 0.220 13.0 0.226 0.221 0.216 0.211 0.207 0.203 0.199 0.195 13.5 0.201 0.196 0.192 0.188 0.184 0.181 0.177 0.174 14.0 0.179 0.176 0.172 0.168 0.165 0.162 0.159 0.156 14.5 0.161 0.158 0.155 0.152 0.149 0.146 0.143 0.140 15.0 0.146 0.143 0.140 0.137 0.134 0.132 0.129 0.127 15.5 0.132 0.129 0.127 0.124 0.122 0.120 0.118 0.115 16.0 0.120 0.118 0.116 0.113 0.111 0.109 0.107 0.105 16.5 0.110 0.108 0.106 0.104 0.102 0.100 0.098 0.096 17.0 0.101 0.099 0.097 0.095 0.093 0.092 0.090 0.089 17.5 0.093 0.091 0.089 0.088 0.086 0.084 0.083 0.082 18.0 0.086 0.084 0.082 0.081 0.079 0.078 0.077 0.075 18.5 0.079 0.078 0.076 0.075 0.074 0.072 0.071 0.070 19.0 0.074 0.072 0.071 0.070 0.068 0.067 0.066 0.065 19.5 0.068 0.067 0.066 0.065 0.064 0.063 0.061 0.060 20.0 0.064 0.063 0.062 0.060 0.059 0.058 0.057 0.056 F008_246_A02_EN Revision 00, 2013-11-21 9 / 9

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: Rotor diameter: Mode 1 / Sound optimized mode - 104.0 db(a) 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 K TN 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 K TN 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 - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 db(a) Maximum sound power level L WA [db(a)] over the complete operating range of the turbine 104.0 F008_246_A12_EN Revision 00, 2014-02-20 11 / 81

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: Rotor diameter: Mode 1 / Sound optimized mode - 104.0 db(a) 131 m Determinations for the power curve verification: Verification according to: IEC 61400-12-1:2005 Type of anemometer: Measurement of power: Air density: Thies First Class (Advanced), Risø P2546A or Vector A100 low voltage side, 660 VAC Filter of turbulence: 9 % TI 15 % Filter of wind shear: Filter of temperature: 2 C θ 25 C Status signal: normalization to the nearest air density shown in the table 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 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

Power curves - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 db(a) wind speed v hub [m/s] Power P el [kw] at air density ρ [kg/m³] 0.900 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 11 13 15 16 18 20 21 23 24 3.5 63 67 70 73 76 79 82 85 88 4.0 128 134 139 144 149 154 159 164 169 4.5 210 218 225 232 240 247 254 262 269 5.0 311 321 331 341 351 362 372 382 392 5.5 432 445 459 472 486 499 513 526 539 6.0 576 594 611 628 646 663 680 698 715 6.5 745 767 789 811 833 855 877 899 921 7.0 935 962 990 1018 1046 1073 1101 1128 1156 7.5 1140 1174 1209 1243 1278 1312 1346 1379 1413 8.0 1353 1394 1437 1478 1521 1563 1603 1643 1683 8.5 1568 1617 1667 1717 1767 1817 1865 1912 1959 9.0 1781 1837 1895 1953 2011 2069 2125 2180 2234 9.5 1989 2053 2119 2185 2251 2314 2375 2432 2478 10.0 2193 2265 2337 2405 2474 2527 2577 2624 2661 10.5 2391 2464 2531 2588 2644 2686 2727 2764 2791 11.0 2564 2624 2679 2724 2769 2800 2831 2858 2875 11.5 2697 2744 2788 2822 2855 2876 2896 2913 2921 12.0 2796 2832 2863 2887 2909 2919 2928 2935 2935 12.5 2865 2890 2911 2922 2934 2934 2935 2935 2935 13.0 2910 2923 2933 2934 2935 2935 2935 2935 2935 13.5 2931 2934 2935 2935 2935 2935 2935 2935 2935 14.0 2935 2935 2935 2935 2935 2935 2935 2935 2935 14.5 2935 2935 2935 2935 2935 2935 2935 2935 2935 15.0 2935 2935 2935 2935 2935 2935 2935 2935 2935 15.5 2935 2935 2935 2935 2935 2935 2935 2935 2935 16.0 2935 2935 2935 2935 2935 2935 2935 2935 2935 16.5 2935 2935 2935 2935 2935 2935 2935 2935 2935 17.0 2935 2935 2935 2935 2935 2935 2935 2935 2935 17.5 2935 2935 2935 2935 2935 2935 2935 2935 2935 18.0 2935 2935 2935 2935 2935 2935 2935 2935 2935 18.5 2935 2935 2935 2935 2935 2935 2935 2935 2935 19.0 2935 2935 2935 2935 2935 2935 2935 2935 2935 19.5 2935 2935 2935 2935 2935 2935 2935 2935 2935 20.0 2935 2935 2935 2935 2935 2935 2935 2935 2935 F008_246_A12_EN Revision 00, 2014-02-20 13 / 81

Power curves - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 db(a) wind speed v hub [m/s] Power P el [kw] at air density ρ [kg/m³] 1.125 1.150 1.175 1.200 1.225 1.250 1.275 1.300 3.0 26 28 29 31 33 34 36 37 3.5 92 95 98 101 104 107 110 113 4.0 174 179 183 188 193 198 203 208 4.5 276 284 291 298 306 313 320 327 5.0 402 412 422 432 442 452 462 472 5.5 553 566 579 593 606 620 633 646 6.0 732 750 767 784 801 819 836 853 6.5 943 965 987 1009 1031 1053 1075 1097 7.0 1183 1210 1238 1265 1292 1320 1347 1374 7.5 1446 1479 1513 1546 1579 1613 1646 1679 8.0 1723 1763 1803 1843 1882 1922 1962 2002 8.5 2006 2053 2100 2147 2194 2241 2285 2321 9.0 2287 2341 2385 2425 2466 2506 2544 2572 9.5 2523 2569 2604 2635 2667 2699 2728 2748 10.0 2697 2733 2759 2783 2806 2829 2850 2862 10.5 2818 2845 2862 2877 2891 2906 2918 2922 11.0 2893 2911 2918 2923 2928 2933 2935 2935 11.5 2928 2935 2935 2935 2935 2935 2935 2935 12.0 2935 2935 2935 2935 2935 2935 2935 2935 12.5 2935 2935 2935 2935 2935 2935 2935 2935 13.0 2935 2935 2935 2935 2935 2935 2935 2935 13.5 2935 2935 2935 2935 2935 2935 2935 2935 14.0 2935 2935 2935 2935 2935 2935 2935 2935 14.5 2935 2935 2935 2935 2935 2935 2935 2935 15.0 2935 2935 2935 2935 2935 2935 2935 2935 15.5 2935 2935 2935 2935 2935 2935 2935 2935 16.0 2935 2935 2935 2935 2935 2935 2935 2935 16.5 2935 2935 2935 2935 2935 2935 2935 2935 17.0 2935 2935 2935 2935 2935 2935 2935 2935 17.5 2935 2935 2935 2935 2935 2935 2935 2935 18.0 2935 2935 2935 2935 2935 2935 2935 2935 18.5 2935 2935 2935 2935 2935 2935 2935 2935 19.0 2935 2935 2935 2935 2935 2935 2935 2935 19.5 2935 2935 2935 2935 2935 2935 2935 2935 20.0 2935 2935 2935 2935 2935 2935 2935 2935 F008_246_A12_EN Revision 00, 2014-02-20 14 / 81

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: Blade regulation: Air density: Mode 1 / Sound optimized mode - 104.0 db(a) Pitch to the nearest air density shown in the table F008_246_A12_EN Revision 00, 2014-02-20 15 / 81

Thrust curves - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 db(a) wind speed v hub [m/s] Thrust coefficients c T [-] at air density ρ [kg/m³] 0.900 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 0.874 0.875 0.876 0.877 0.878 0.879 0.880 0.881 0.882 3.5 0.831 0.832 0.834 0.835 0.837 0.839 0.840 0.842 0.844 4.0 0.795 0.797 0.801 0.805 0.809 0.813 0.817 0.821 0.825 4.5 0.787 0.792 0.797 0.802 0.806 0.811 0.816 0.821 0.826 5.0 0.776 0.780 0.785 0.789 0.793 0.797 0.801 0.805 0.809 5.5 0.840 0.839 0.839 0.839 0.839 0.839 0.839 0.839 0.839 6.0 0.838 0.838 0.838 0.838 0.838 0.838 0.838 0.838 0.838 6.5 0.838 0.838 0.837 0.837 0.837 0.837 0.837 0.837 0.837 7.0 0.815 0.817 0.819 0.820 0.821 0.822 0.823 0.824 0.824 7.5 0.758 0.760 0.763 0.766 0.768 0.771 0.772 0.772 0.773 8.0 0.706 0.709 0.713 0.716 0.720 0.723 0.724 0.725 0.725 8.5 0.656 0.659 0.664 0.668 0.672 0.676 0.678 0.678 0.679 9.0 0.607 0.610 0.614 0.619 0.623 0.627 0.629 0.630 0.631 9.5 0.562 0.566 0.570 0.574 0.579 0.583 0.585 0.586 0.588 10.0 0.521 0.525 0.529 0.533 0.537 0.542 0.544 0.545 0.547 10.5 0.484 0.488 0.492 0.496 0.500 0.505 0.507 0.496 0.474 11.0 0.451 0.454 0.458 0.462 0.463 0.436 0.420 0.406 0.395 11.5 0.421 0.424 0.411 0.393 0.378 0.367 0.356 0.346 0.337 12.0 0.377 0.360 0.346 0.335 0.325 0.316 0.308 0.300 0.292 12.5 0.321 0.310 0.301 0.292 0.284 0.276 0.269 0.262 0.256 13.0 0.281 0.272 0.264 0.257 0.250 0.243 0.237 0.231 0.226 13.5 0.248 0.240 0.234 0.227 0.221 0.216 0.210 0.205 0.201 14.0 0.221 0.214 0.208 0.203 0.198 0.193 0.188 0.184 0.179 14.5 0.197 0.192 0.187 0.182 0.177 0.173 0.169 0.165 0.161 15.0 0.178 0.173 0.168 0.164 0.160 0.156 0.152 0.149 0.146 15.5 0.161 0.156 0.152 0.149 0.145 0.141 0.138 0.135 0.132 16.0 0.146 0.142 0.139 0.135 0.132 0.129 0.126 0.123 0.120 16.5 0.133 0.130 0.126 0.123 0.120 0.118 0.115 0.112 0.110 17.0 0.122 0.119 0.116 0.113 0.110 0.108 0.105 0.103 0.101 17.5 0.112 0.109 0.106 0.104 0.101 0.099 0.097 0.095 0.093 18.0 0.103 0.101 0.098 0.096 0.093 0.091 0.089 0.087 0.086 18.5 0.095 0.093 0.091 0.088 0.086 0.085 0.083 0.081 0.079 19.0 0.088 0.086 0.084 0.082 0.080 0.078 0.077 0.075 0.074 19.5 0.082 0.080 0.078 0.076 0.074 0.073 0.071 0.070 0.068 20.0 0.076 0.074 0.073 0.071 0.069 0.068 0.066 0.065 0.064 F008_246_A12_EN Revision 00, 2014-02-20 16 / 81

Thrust curves - Nordex N131/3000 Mode 1 / Sound optimized mode - 104.0 db(a) wind speed v hub [m/s] Thrust coefficients c T [-] at air density ρ [kg/m³] 1.125 1.150 1.175 1.200 1.225 1.250 1.275 1.300 3.0 0.883 0.884 0.885 0.886 0.887 0.888 0.889 0.890 3.5 0.845 0.847 0.848 0.850 0.852 0.853 0.855 0.856 4.0 0.829 0.832 0.836 0.840 0.844 0.848 0.852 0.856 4.5 0.829 0.833 0.836 0.840 0.843 0.846 0.850 0.853 5.0 0.813 0.818 0.822 0.828 0.833 0.838 0.843 0.849 5.5 0.839 0.838 0.838 0.838 0.838 0.838 0.838 0.838 6.0 0.838 0.838 0.838 0.837 0.837 0.837 0.837 0.837 6.5 0.837 0.837 0.837 0.837 0.837 0.837 0.837 0.837 7.0 0.825 0.826 0.827 0.827 0.828 0.829 0.830 0.831 7.5 0.773 0.774 0.774 0.775 0.775 0.776 0.777 0.777 8.0 0.726 0.726 0.727 0.727 0.728 0.728 0.729 0.729 8.5 0.680 0.680 0.681 0.681 0.682 0.682 0.683 0.683 9.0 0.632 0.633 0.634 0.634 0.635 0.636 0.636 0.637 9.5 0.589 0.590 0.590 0.591 0.592 0.593 0.588 0.567 10.0 0.548 0.549 0.528 0.511 0.495 0.481 0.469 0.457 10.5 0.458 0.444 0.432 0.420 0.410 0.400 0.391 0.382 11.0 0.384 0.374 0.365 0.356 0.348 0.340 0.333 0.326 11.5 0.329 0.321 0.313 0.306 0.300 0.293 0.287 0.281 12.0 0.285 0.279 0.272 0.266 0.261 0.255 0.250 0.245 12.5 0.250 0.244 0.239 0.234 0.229 0.224 0.220 0.215 13.0 0.221 0.216 0.211 0.207 0.202 0.198 0.195 0.191 13.5 0.196 0.192 0.188 0.184 0.180 0.177 0.173 0.170 14.0 0.175 0.172 0.168 0.165 0.161 0.158 0.155 0.152 14.5 0.158 0.154 0.151 0.148 0.145 0.143 0.140 0.137 15.0 0.143 0.140 0.137 0.134 0.131 0.129 0.127 0.124 15.5 0.129 0.127 0.124 0.122 0.119 0.117 0.115 0.113 16.0 0.118 0.115 0.113 0.111 0.109 0.107 0.105 0.103 16.5 0.108 0.106 0.103 0.101 0.100 0.098 0.096 0.094 17.0 0.099 0.097 0.095 0.093 0.091 0.090 0.088 0.087 17.5 0.091 0.089 0.087 0.086 0.084 0.083 0.081 0.080 18.0 0.084 0.082 0.081 0.079 0.078 0.076 0.075 0.074 18.5 0.078 0.076 0.075 0.073 0.072 0.071 0.070 0.068 19.0 0.072 0.071 0.069 0.068 0.067 0.066 0.065 0.064 19.5 0.067 0.066 0.065 0.063 0.062 0.061 0.060 0.059 20.0 0.063 0.061 0.060 0.059 0.058 0.057 0.056 0.055 F008_246_A12_EN Revision 00, 2014-02-20 17 / 81

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: Rotor diameter: Mode 2 / Sound optimized mode - 103.5 db(a) 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 K TN 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 K TN 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 - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 db(a) Maximum sound power level L WA [db(a)] over the complete operating range of the turbine 103.5 F008_246_A12_EN Revision 00, 2014-02-20 19 / 81

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: Rotor diameter: Mode 2 / Sound optimized mode - 103.5 db(a) 131 m Determinations for the power curve verification: Verification according to: IEC 61400-12-1:2005 Type of anemometer: Measurement of power: Air density: Thies First Class (Advanced), Risø P2546A or Vector A100 low voltage side, 660 VAC Filter of turbulence: 9 % TI 15 % Filter of wind shear: Filter of temperature: 2 C θ 25 C Status signal: normalization to the nearest air density shown in the table 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 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

Power curves - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 db(a) wind speed v hub [m/s] Power P el [kw] at air density ρ [kg/m³] 0.900 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 11 13 15 16 18 19 21 23 24 3.5 63 66 70 73 76 79 82 85 88 4.0 128 133 138 143 148 153 158 163 168 4.5 210 217 225 232 240 247 254 262 269 5.0 311 321 331 341 351 361 371 381 391 5.5 432 445 459 472 485 499 512 525 539 6.0 576 593 610 628 645 662 680 697 714 6.5 743 765 787 809 831 854 875 897 919 7.0 929 957 984 1012 1040 1068 1095 1123 1150 7.5 1127 1161 1196 1230 1264 1299 1332 1366 1399 8.0 1331 1372 1413 1454 1496 1538 1578 1618 1659 8.5 1534 1582 1630 1679 1728 1777 1825 1872 1920 9.0 1733 1788 1844 1900 1956 2013 2068 2123 2177 9.5 1928 1990 2053 2116 2180 2243 2303 2363 2413 10.0 2118 2187 2257 2325 2391 2451 2501 2550 2591 10.5 2305 2376 2446 2505 2560 2609 2649 2688 2720 11.0 2476 2536 2594 2642 2685 2724 2753 2783 2804 11.5 2609 2658 2705 2742 2774 2802 2822 2841 2852 12.0 2711 2749 2784 2810 2832 2849 2858 2867 2870 12.5 2785 2812 2836 2851 2862 2869 2870 2870 2870 13.0 2834 2850 2864 2868 2870 2870 2870 2870 2870 13.5 2862 2868 2870 2870 2870 2870 2870 2870 2870 14.0 2870 2870 2870 2870 2870 2870 2870 2870 2870 14.5 2870 2870 2870 2870 2870 2870 2870 2870 2870 15.0 2870 2870 2870 2870 2870 2870 2870 2870 2870 15.5 2870 2870 2870 2870 2870 2870 2870 2870 2870 16.0 2870 2870 2870 2870 2870 2870 2870 2870 2870 16.5 2870 2870 2870 2870 2870 2870 2870 2870 2870 17.0 2870 2870 2870 2870 2870 2870 2870 2870 2870 17.5 2870 2870 2870 2870 2870 2870 2870 2870 2870 18.0 2870 2870 2870 2870 2870 2870 2870 2870 2870 18.5 2870 2870 2870 2870 2870 2870 2870 2870 2870 19.0 2870 2870 2870 2870 2870 2870 2870 2870 2870 19.5 2870 2870 2870 2870 2870 2870 2870 2870 2870 20.0 2870 2870 2870 2870 2870 2870 2870 2870 2870 F008_246_A12_EN Revision 00, 2014-02-20 21 / 81

Power curves - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 db(a) wind speed v hub [m/s] Power P el [kw] at air density ρ [kg/m³] 1.125 1.150 1.175 1.200 1.225 1.250 1.275 1.300 3.0 26 28 29 31 32 34 36 37 3.5 91 94 98 101 104 107 110 113 4.0 173 178 183 188 193 198 203 208 4.5 276 283 291 298 305 313 320 327 5.0 401 412 422 432 442 452 462 472 5.5 552 565 579 592 606 619 632 646 6.0 732 749 766 783 801 818 835 853 6.5 941 963 985 1007 1029 1051 1073 1095 7.0 1178 1205 1232 1260 1287 1314 1342 1369 7.5 1433 1467 1500 1534 1567 1601 1634 1667 8.0 1699 1739 1780 1820 1859 1899 1939 1979 8.5 1967 2015 2063 2110 2156 2203 2249 2285 9.0 2231 2285 2336 2376 2417 2457 2497 2524 9.5 2458 2504 2546 2578 2610 2642 2672 2692 10.0 2627 2664 2696 2720 2743 2766 2788 2800 10.5 2746 2773 2796 2811 2825 2840 2854 2857 11.0 2821 2839 2852 2857 2862 2867 2870 2870 11.5 2859 2866 2870 2870 2870 2870 2870 2870 12.0 2870 2870 2870 2870 2870 2870 2870 2870 12.5 2870 2870 2870 2870 2870 2870 2870 2870 13.0 2870 2870 2870 2870 2870 2870 2870 2870 13.5 2870 2870 2870 2870 2870 2870 2870 2870 14.0 2870 2870 2870 2870 2870 2870 2870 2870 14.5 2870 2870 2870 2870 2870 2870 2870 2870 15.0 2870 2870 2870 2870 2870 2870 2870 2870 15.5 2870 2870 2870 2870 2870 2870 2870 2870 16.0 2870 2870 2870 2870 2870 2870 2870 2870 16.5 2870 2870 2870 2870 2870 2870 2870 2870 17.0 2870 2870 2870 2870 2870 2870 2870 2870 17.5 2870 2870 2870 2870 2870 2870 2870 2870 18.0 2870 2870 2870 2870 2870 2870 2870 2870 18.5 2870 2870 2870 2870 2870 2870 2870 2870 19.0 2870 2870 2870 2870 2870 2870 2870 2870 19.5 2870 2870 2870 2870 2870 2870 2870 2870 20.0 2870 2870 2870 2870 2870 2870 2870 2870 F008_246_A12_EN Revision 00, 2014-02-20 22 / 81

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: Blade regulation: Air density: Mode 2 / Sound optimized mode - 103.5 db(a) Pitch to the nearest air density shown in the table F008_246_A12_EN Revision 00, 2014-02-20 23 / 81

Thrust curves - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 db(a) wind speed v hub [m/s] Thrust coefficients c T [-] at air density ρ [kg/m³] 0.900 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 0.874 0.875 0.876 0.877 0.878 0.879 0.880 0.881 0.882 3.5 0.831 0.832 0.834 0.835 0.837 0.839 0.840 0.842 0.843 4.0 0.795 0.797 0.801 0.805 0.809 0.813 0.817 0.821 0.825 4.5 0.787 0.792 0.797 0.801 0.806 0.811 0.816 0.820 0.825 5.0 0.776 0.780 0.785 0.789 0.793 0.797 0.801 0.805 0.809 5.5 0.839 0.839 0.839 0.839 0.839 0.839 0.839 0.839 0.838 6.0 0.838 0.838 0.838 0.838 0.838 0.838 0.838 0.838 0.838 6.5 0.837 0.837 0.837 0.837 0.837 0.837 0.837 0.837 0.837 7.0 0.796 0.798 0.799 0.801 0.802 0.804 0.804 0.805 0.806 7.5 0.738 0.741 0.743 0.745 0.748 0.751 0.751 0.752 0.753 8.0 0.685 0.688 0.691 0.694 0.697 0.701 0.702 0.704 0.705 8.5 0.633 0.636 0.639 0.643 0.646 0.650 0.652 0.654 0.656 9.0 0.584 0.587 0.591 0.595 0.598 0.603 0.605 0.606 0.608 9.5 0.540 0.543 0.546 0.550 0.554 0.558 0.561 0.562 0.564 10.0 0.499 0.503 0.506 0.510 0.514 0.518 0.520 0.522 0.524 10.5 0.463 0.467 0.470 0.474 0.477 0.481 0.484 0.486 0.465 11.0 0.431 0.434 0.437 0.441 0.444 0.430 0.412 0.397 0.385 11.5 0.402 0.405 0.408 0.387 0.372 0.359 0.348 0.338 0.329 12.0 0.376 0.355 0.341 0.328 0.318 0.309 0.301 0.293 0.286 12.5 0.316 0.304 0.294 0.285 0.277 0.270 0.263 0.256 0.250 13.0 0.275 0.266 0.258 0.251 0.244 0.238 0.232 0.226 0.221 13.5 0.243 0.235 0.229 0.222 0.216 0.211 0.206 0.201 0.196 14.0 0.216 0.210 0.204 0.198 0.193 0.188 0.184 0.180 0.175 14.5 0.193 0.188 0.183 0.178 0.173 0.169 0.165 0.161 0.158 15.0 0.174 0.169 0.165 0.160 0.156 0.153 0.149 0.146 0.142 15.5 0.157 0.153 0.149 0.145 0.142 0.138 0.135 0.132 0.129 16.0 0.143 0.139 0.136 0.132 0.129 0.126 0.123 0.120 0.118 16.5 0.130 0.127 0.124 0.121 0.118 0.115 0.112 0.110 0.108 17.0 0.119 0.116 0.113 0.111 0.108 0.105 0.103 0.101 0.099 17.5 0.110 0.107 0.104 0.102 0.099 0.097 0.095 0.093 0.091 18.0 0.101 0.098 0.096 0.094 0.092 0.089 0.087 0.086 0.084 18.5 0.093 0.091 0.089 0.087 0.085 0.083 0.081 0.079 0.078 19.0 0.086 0.084 0.082 0.080 0.078 0.077 0.075 0.073 0.072 19.5 0.080 0.078 0.076 0.075 0.073 0.071 0.070 0.068 0.067 20.0 0.075 0.073 0.071 0.069 0.068 0.066 0.065 0.064 0.062 F008_246_A12_EN Revision 00, 2014-02-20 24 / 81

Thrust curves - Nordex N131/3000 Mode 2 / Sound optimized mode - 103.5 db(a) wind speed v hub [m/s] Thrust coefficients c T [-] at air density ρ [kg/m³] 1.125 1.150 1.175 1.200 1.225 1.250 1.275 1.300 3.0 0.883 0.884 0.885 0.886 0.887 0.888 0.889 0.890 3.5 0.845 0.847 0.848 0.850 0.852 0.853 0.855 0.856 4.0 0.828 0.832 0.836 0.840 0.844 0.848 0.852 0.855 4.5 0.829 0.832 0.836 0.839 0.843 0.846 0.850 0.853 5.0 0.813 0.817 0.822 0.828 0.833 0.838 0.843 0.848 5.5 0.838 0.838 0.838 0.838 0.838 0.838 0.838 0.838 6.0 0.837 0.837 0.837 0.837 0.837 0.837 0.837 0.837 6.5 0.837 0.837 0.837 0.837 0.837 0.837 0.837 0.837 7.0 0.807 0.807 0.808 0.809 0.810 0.811 0.812 0.812 7.5 0.755 0.756 0.757 0.758 0.758 0.759 0.760 0.760 8.0 0.706 0.708 0.709 0.710 0.710 0.711 0.712 0.712 8.5 0.657 0.659 0.661 0.662 0.663 0.664 0.665 0.665 9.0 0.610 0.612 0.614 0.615 0.616 0.616 0.617 0.618 9.5 0.566 0.568 0.570 0.572 0.573 0.574 0.573 0.551 10.0 0.526 0.528 0.518 0.498 0.482 0.469 0.456 0.445 10.5 0.447 0.433 0.421 0.410 0.399 0.390 0.381 0.373 11.0 0.375 0.365 0.356 0.347 0.339 0.332 0.325 0.318 11.5 0.321 0.313 0.306 0.299 0.292 0.286 0.280 0.274 12.0 0.279 0.272 0.266 0.260 0.255 0.249 0.244 0.239 12.5 0.244 0.239 0.233 0.228 0.224 0.219 0.215 0.211 13.0 0.216 0.211 0.206 0.202 0.198 0.194 0.190 0.187 13.5 0.192 0.188 0.184 0.180 0.176 0.173 0.169 0.166 14.0 0.172 0.168 0.164 0.161 0.158 0.155 0.152 0.149 14.5 0.154 0.151 0.148 0.145 0.142 0.139 0.137 0.134 15.0 0.139 0.136 0.134 0.131 0.128 0.126 0.124 0.121 15.5 0.126 0.124 0.121 0.119 0.117 0.115 0.112 0.110 16.0 0.115 0.113 0.111 0.108 0.106 0.104 0.103 0.101 16.5 0.105 0.103 0.101 0.099 0.097 0.096 0.094 0.092 17.0 0.097 0.095 0.093 0.091 0.089 0.088 0.086 0.085 17.5 0.089 0.087 0.086 0.084 0.082 0.081 0.079 0.078 18.0 0.082 0.081 0.079 0.077 0.076 0.075 0.073 0.072 18.5 0.076 0.075 0.073 0.072 0.070 0.069 0.068 0.067 19.0 0.071 0.069 0.068 0.067 0.065 0.064 0.063 0.062 19.5 0.066 0.064 0.063 0.062 0.061 0.060 0.059 0.058 20.0 0.061 0.060 0.059 0.058 0.057 0.056 0.055 0.054 F008_246_A12_EN Revision 00, 2014-02-20 25 / 81

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: Rotor diameter: Mode 3 / Sound optimized mode - 103.0 db(a) 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 K TN 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 K TN 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 - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 db(a) Maximum sound power level L WA [db(a)] over the complete operating range of the turbine 103.0 F008_246_A12_EN Revision 00, 2014-02-20 27 / 81

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: Rotor diameter: Mode 3 / Sound optimized mode - 103.0 db(a) 131 m Determinations for the power curve verification: Verification according to: IEC 61400-12-1:2005 Type of anemometer: Measurement of power: Air density: Thies First Class (Advanced), Risø P2546A or Vector A100 low voltage side, 660 VAC Filter of turbulence: 9 % TI 15 % Filter of wind shear: Filter of temperature: 2 C θ 25 C Status signal: normalization to the nearest air density shown in the table 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 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

Power curves - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 db(a) wind speed v hub [m/s] Power P el [kw] at air density ρ [kg/m³] 0.900 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 11 13 15 16 18 19 21 23 24 3.5 63 66 69 73 76 79 82 85 88 4.0 128 133 138 143 148 153 158 163 168 4.5 210 217 225 232 239 247 254 261 269 5.0 310 320 331 341 351 361 371 381 391 5.5 431 445 458 471 485 498 511 525 538 6.0 575 592 609 627 644 661 679 696 713 6.5 739 761 783 805 827 849 872 894 916 7.0 918 945 973 1001 1029 1057 1084 1112 1140 7.5 1105 1138 1173 1207 1241 1276 1310 1344 1378 8.0 1293 1333 1374 1415 1456 1498 1539 1580 1620 8.5 1479 1526 1574 1622 1670 1719 1767 1814 1862 9.0 1662 1715 1770 1825 1880 1936 1990 2045 2100 9.5 1840 1901 1961 2023 2085 2148 2208 2267 2326 10.0 2015 2082 2150 2218 2283 2347 2402 2451 2500 10.5 2188 2262 2330 2398 2452 2505 2549 2589 2628 11.0 2354 2425 2481 2537 2580 2622 2656 2685 2714 11.5 2492 2551 2596 2641 2673 2705 2729 2748 2767 12.0 2599 2646 2680 2714 2737 2758 2772 2781 2790 12.5 2679 2715 2739 2762 2774 2785 2789 2790 2790 13.0 2735 2761 2774 2787 2789 2790 2790 2790 2790 13.5 2771 2786 2788 2790 2790 2790 2790 2790 2790 14.0 2787 2790 2790 2790 2790 2790 2790 2790 2790 14.5 2790 2790 2790 2790 2790 2790 2790 2790 2790 15.0 2790 2790 2790 2790 2790 2790 2790 2790 2790 15.5 2790 2790 2790 2790 2790 2790 2790 2790 2790 16.0 2790 2790 2790 2790 2790 2790 2790 2790 2790 16.5 2790 2790 2790 2790 2790 2790 2790 2790 2790 17.0 2790 2790 2790 2790 2790 2790 2790 2790 2790 17.5 2790 2790 2790 2790 2790 2790 2790 2790 2790 18.0 2790 2790 2790 2790 2790 2790 2790 2790 2790 18.5 2790 2790 2790 2790 2790 2790 2790 2790 2790 19.0 2790 2790 2790 2790 2790 2790 2790 2790 2790 19.5 2790 2790 2790 2790 2790 2790 2790 2790 2790 20.0 2790 2790 2790 2790 2790 2790 2790 2790 2790 F008_246_A12_EN Revision 00, 2014-02-20 29 / 81

Power curves - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 db(a) wind speed v hub [m/s] Power P el [kw] at air density ρ [kg/m³] 1.125 1.150 1.175 1.200 1.225 1.250 1.275 1.300 3.0 26 28 29 31 32 34 36 37 3.5 91 94 97 101 104 107 110 113 4.0 173 178 183 188 193 198 203 208 4.5 276 283 290 298 305 312 319 327 5.0 401 411 421 431 441 451 461 471 5.5 551 565 578 592 605 618 632 645 6.0 731 748 765 782 800 817 834 851 6.5 938 960 982 1004 1026 1048 1069 1091 7.0 1167 1195 1223 1250 1277 1304 1331 1359 7.5 1412 1446 1480 1514 1546 1579 1612 1645 8.0 1661 1703 1744 1784 1823 1862 1901 1941 8.5 1910 1958 2007 2054 2100 2146 2192 2231 9.0 2154 2209 2263 2308 2347 2387 2427 2459 9.5 2373 2419 2465 2501 2532 2563 2595 2618 10.0 2537 2574 2610 2637 2660 2683 2706 2721 10.5 2655 2682 2709 2727 2741 2756 2770 2777 11.0 2732 2750 2767 2775 2780 2785 2790 2790 11.5 2775 2782 2789 2790 2790 2790 2790 2790 12.0 2790 2790 2790 2790 2790 2790 2790 2790 12.5 2790 2790 2790 2790 2790 2790 2790 2790 13.0 2790 2790 2790 2790 2790 2790 2790 2790 13.5 2790 2790 2790 2790 2790 2790 2790 2790 14.0 2790 2790 2790 2790 2790 2790 2790 2790 14.5 2790 2790 2790 2790 2790 2790 2790 2790 15.0 2790 2790 2790 2790 2790 2790 2790 2790 15.5 2790 2790 2790 2790 2790 2790 2790 2790 16.0 2790 2790 2790 2790 2790 2790 2790 2790 16.5 2790 2790 2790 2790 2790 2790 2790 2790 17.0 2790 2790 2790 2790 2790 2790 2790 2790 17.5 2790 2790 2790 2790 2790 2790 2790 2790 18.0 2790 2790 2790 2790 2790 2790 2790 2790 18.5 2790 2790 2790 2790 2790 2790 2790 2790 19.0 2790 2790 2790 2790 2790 2790 2790 2790 19.5 2790 2790 2790 2790 2790 2790 2790 2790 20.0 2790 2790 2790 2790 2790 2790 2790 2790 F008_246_A12_EN Revision 00, 2014-02-20 30 / 81

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: Blade regulation: Air density: Mode 3 / Sound optimized mode - 103.0 db(a) Pitch to the nearest air density shown in the table F008_246_A12_EN Revision 00, 2014-02-20 31 / 81

Thrust curves - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 db(a) wind speed v hub [m/s] Thrust coefficients c T [-] at air density ρ [kg/m³] 0.900 0.925 0.950 0.975 1.000 1.025 1.050 1.075 1.100 3.0 0.874 0.875 0.876 0.877 0.878 0.879 0.880 0.881 0.882 3.5 0.831 0.832 0.834 0.835 0.837 0.839 0.840 0.842 0.843 4.0 0.795 0.797 0.801 0.805 0.809 0.813 0.817 0.821 0.824 4.5 0.787 0.792 0.797 0.801 0.806 0.811 0.815 0.820 0.825 5.0 0.776 0.780 0.784 0.789 0.793 0.797 0.801 0.805 0.809 5.5 0.839 0.839 0.839 0.839 0.839 0.838 0.838 0.838 0.838 6.0 0.838 0.838 0.838 0.838 0.838 0.837 0.837 0.837 0.837 6.5 0.830 0.831 0.832 0.833 0.834 0.835 0.836 0.836 0.836 7.0 0.764 0.766 0.768 0.770 0.772 0.775 0.776 0.778 0.779 7.5 0.706 0.709 0.711 0.714 0.717 0.720 0.723 0.725 0.727 8.0 0.651 0.654 0.658 0.661 0.665 0.668 0.671 0.673 0.676 8.5 0.598 0.601 0.605 0.608 0.612 0.617 0.619 0.622 0.625 9.0 0.551 0.554 0.558 0.561 0.565 0.570 0.572 0.575 0.578 9.5 0.508 0.511 0.515 0.518 0.522 0.527 0.530 0.532 0.535 10.0 0.469 0.473 0.476 0.480 0.484 0.488 0.491 0.493 0.496 10.5 0.435 0.439 0.442 0.445 0.449 0.453 0.456 0.459 0.461 11.0 0.405 0.408 0.411 0.414 0.418 0.422 0.403 0.387 0.375 11.5 0.377 0.380 0.383 0.387 0.364 0.350 0.338 0.329 0.320 12.0 0.353 0.356 0.333 0.321 0.310 0.301 0.292 0.285 0.277 12.5 0.310 0.297 0.287 0.278 0.270 0.262 0.255 0.249 0.243 13.0 0.268 0.259 0.252 0.244 0.237 0.231 0.225 0.220 0.215 13.5 0.237 0.229 0.223 0.216 0.211 0.205 0.200 0.195 0.191 14.0 0.210 0.204 0.198 0.193 0.188 0.183 0.179 0.175 0.171 14.5 0.188 0.183 0.178 0.173 0.169 0.165 0.161 0.157 0.153 15.0 0.170 0.165 0.160 0.156 0.152 0.149 0.145 0.142 0.139 15.5 0.153 0.149 0.145 0.141 0.138 0.135 0.132 0.129 0.126 16.0 0.139 0.136 0.132 0.129 0.126 0.123 0.120 0.117 0.115 16.5 0.127 0.124 0.120 0.117 0.115 0.112 0.109 0.107 0.105 17.0 0.116 0.113 0.110 0.108 0.105 0.103 0.100 0.098 0.096 17.5 0.107 0.104 0.101 0.099 0.097 0.094 0.092 0.090 0.088 18.0 0.098 0.096 0.094 0.091 0.089 0.087 0.085 0.083 0.082 18.5 0.091 0.089 0.086 0.084 0.082 0.081 0.079 0.077 0.076 19.0 0.084 0.082 0.080 0.078 0.076 0.075 0.073 0.072 0.070 19.5 0.078 0.076 0.074 0.073 0.071 0.069 0.068 0.067 0.065 20.0 0.073 0.071 0.069 0.068 0.066 0.065 0.063 0.062 0.061 F008_246_A12_EN Revision 00, 2014-02-20 32 / 81

Thrust curves - Nordex N131/3000 Mode 3 / Sound optimized mode - 103.0 db(a) wind speed v hub [m/s] Thrust coefficients c T [-] at air density ρ [kg/m³] 1.125 1.150 1.175 1.200 1.225 1.250 1.275 1.300 3.0 0.883 0.884 0.885 0.886 0.887 0.888 0.889 0.890 3.5 0.845 0.847 0.848 0.850 0.851 0.853 0.855 0.856 4.0 0.828 0.832 0.836 0.840 0.844 0.848 0.851 0.855 4.5 0.829 0.832 0.836 0.839 0.843 0.846 0.850 0.853 5.0 0.813 0.817 0.822 0.827 0.832 0.838 0.843 0.848 5.5 0.838 0.838 0.838 0.838 0.838 0.838 0.838 0.837 6.0 0.837 0.837 0.837 0.837 0.837 0.837 0.837 0.837 6.5 0.836 0.836 0.836 0.836 0.836 0.836 0.836 0.836 7.0 0.781 0.782 0.784 0.785 0.785 0.785 0.786 0.787 7.5 0.729 0.731 0.734 0.734 0.734 0.735 0.735 0.736 8.0 0.679 0.681 0.684 0.686 0.686 0.686 0.687 0.688 8.5 0.628 0.631 0.634 0.635 0.636 0.637 0.638 0.639 9.0 0.581 0.584 0.588 0.589 0.590 0.591 0.592 0.593 9.5 0.538 0.541 0.545 0.546 0.548 0.549 0.550 0.533 10.0 0.499 0.503 0.506 0.484 0.468 0.454 0.442 0.431 10.5 0.437 0.421 0.409 0.397 0.387 0.378 0.369 0.361 11.0 0.364 0.354 0.345 0.337 0.329 0.322 0.315 0.308 11.5 0.312 0.304 0.297 0.290 0.284 0.278 0.272 0.266 12.0 0.271 0.264 0.258 0.253 0.247 0.242 0.237 0.232 12.5 0.237 0.232 0.227 0.222 0.217 0.213 0.209 0.204 13.0 0.210 0.205 0.200 0.196 0.192 0.188 0.185 0.181 13.5 0.186 0.182 0.178 0.175 0.171 0.168 0.165 0.162 14.0 0.167 0.163 0.160 0.157 0.153 0.150 0.148 0.145 14.5 0.150 0.147 0.144 0.141 0.138 0.135 0.133 0.130 15.0 0.136 0.133 0.130 0.127 0.125 0.123 0.120 0.118 15.5 0.123 0.120 0.118 0.116 0.114 0.111 0.109 0.107 16.0 0.112 0.110 0.108 0.106 0.104 0.102 0.100 0.098 16.5 0.103 0.100 0.098 0.097 0.095 0.093 0.091 0.090 17.0 0.094 0.092 0.090 0.089 0.087 0.085 0.084 0.082 17.5 0.087 0.085 0.083 0.082 0.080 0.079 0.077 0.076 18.0 0.080 0.078 0.077 0.075 0.074 0.073 0.071 0.070 18.5 0.074 0.073 0.071 0.070 0.069 0.067 0.066 0.065 19.0 0.069 0.067 0.066 0.065 0.064 0.063 0.062 0.061 19.5 0.064 0.063 0.062 0.060 0.059 0.058 0.057 0.056 20.0 0.060 0.058 0.057 0.056 0.055 0.054 0.054 0.053 F008_246_A12_EN Revision 00, 2014-02-20 33 / 81

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: Rotor diameter: Mode 4 / Sound optimized mode - 102.5 db(a) 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 K TN 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 K TN 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