ANNEXE L COURBES D ÉMISSION ACOUSTIQUE DES ÉOLIENNES CONSIDÉRÉES

Transcription

1 ANNEXE L COURBES D ÉMISSION ACOUSTIQUE DES ÉOLIENNES CONSIDÉRÉES Projet de parc éolien à Lobbes et Merbes-le-Château

2 Power Curve & Sound Power Level REpower MM92 [2050 kw] The REguard Grid Station B in conjunction with the optional component REguard Power Management can dynamically control the effective power The REguard Grid Station B in conjunction with the optional component REguard Power Management can dynamically control the effective power Power Curve & Sound Power Level REpower MM92 [2050 kw] Document-No.: SD-2.9-WT.PC.03-B-C-EN Page 1 of 8 Date of Release: ISO protective note to be attended-

3 Power Curve & Sound Power Level REpower MM92 [2050 kw] REpower Systems AG Überseering Hamburg Tel.: Fax: Copyright 2010 REpower Systems AG Disclaimer All rights reserved. Protection Notice DIN ISO 16016: The reproduction, distribution and utilization of this document as well as the communication of its contents to others without explicit authorization in writing of REpower Systems AG is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design. Please ensure to use the applicable specifications in their latest versions. Images do not necessarily reflect the exact scope of supply and are subject to technical alterations at any time. Please note that this document can not necessarily correspond with the projectspecific requirements. Possible work procedures shown in this product description comply with German and the REpower s own safety provisions and regulations. The national laws of other countries may provide for further safety specifications. It is essential that all precautionary measures, both project- and country-specific, be strictly complied with. It is the duty of each customer to inform itself, implement and observe these measures. The applicability and validity of the relevant legal and/or contractual provisions, the technical guidelines, DIN standards and other comparable regulations is not excluded by the contents or demonstrations contained in product description. Moreover these provisions and regulations shall continue to apply without any limitation. All information contained in this product description are subject to change at any time without notice or approval by the customer. REpower Systems AG assumes no liability for any errors or omissions in the content of this product description. Legal claims against REpower Systems AG based on damage caused by the use or non-use of the information offered here or the use of erroneous or incomplete information are excluded. All brands or product names mentioned in this document are the property of their respective holders. Document-No.: SD-2.9-WT.PC.03-B-C-EN Page 2 of 8 Date of Release: ISO protective note to be attended-

4 Power Curve & Sound Power Level REpower MM92 [2050 kw] Table of Content Applicable Documents...4 List of Abbreviations and Units Introduction Conditions for guarantee and measurement of power curve and sound power level General information Conditions for power curve guarantee and measurement Conditions for sound power level guarantee and measurement Guaranteed electrical power curve und guaranteed sound power level Sound power level according to IEC for wind speed at hub height Sound power level according to IEC for wind speed at 10 m height Sound power level according to FGW Guideline at 95% of rated power...8 Document-No.: SD-2.9-WT.PC.03-B-C-EN Page 3 of 8 Date of Release: ISO protective note to be attended-

5 Power Curve & Sound Power Level REpower MM92 [2050 kw] Applicable Documents The documents referred to in the table below are included for information only. Reference to them in this product description does not make them part of the contract. Title Document no. * If the products referred to in the table above are to be included within the project, the relevant product descriptions in their current version will be amended to the contract. List of Abbreviations and Units Abbreviation/Unit cp ct FGW IEC WEC Description Power coefficient Thrust coefficient Fördergesellschaft Windenergie e.v. International Electrotechnical Commission Wind Energy Converter Document-No.: SD-2.9-WT.PC.03-B-C-EN Page 4 of 8 Date of Release: ISO protective note to be attended-

6 Power Curve & Sound Power Level REpower MM92 [2050 kw] 1 Introduction This document shows the guaranteed power curve and sound power level of the REpower MM92 [2050kW] and the corresponding guarantee and measurement conditions. 2 Conditions for guarantee and measurement of power curve and sound power level 2.1 General information Rotor diameter: Air density: Cut in wind speed: Cut out wind speed: Wind speed at hub height: Blades: 92.5 m kg/m³ approx. 3.0 m/s 24 m/s 10 minutes mean values clean, no ice/snow formation 2.2 Conditions for power curve guarantee and measurement Verification according to IEC : Turbulence intensity: 6 to 12 % Terrain: not complex according to IEC : Vertical wind shear coefficient (measured between hub height and hub height minus rotor diameter divided by 2): 0.2 air density at location (10 minutes mean value): 1.13 kg/m³ Temperature range: 35 C Power factor: cos phi ~ 1 Anemometer type: Thies First Class Voltage level for measurement: 690 V (50 Hz) / 575 V (60Hz) 1 For obstacle assessment according to : 2005 Annex A.2 the following condition applies: No obstacles with a height greater than 1/3 of the distance between the ground and the lower blade tip shall exist in the measurement sector within 0-4 rotor diameters of the wind turbine or met mast. Document-No.: SD-2.9-WT.PC.03-B-C-EN Page 5 of 8 Date of Release: ISO protective note to be attended-

7 Power Curve & Sound Power Level REpower MM92 [2050 kw] Arrangement of a measuring unit for the power curve measurement of a REpower MM Conditions for sound power level guarantee and measurement Verification according to IEC : A1: Roughness length (average peak): 0.05 m 2 Method 1, as outlined in section 7.3 of the IEC standard Document-No.: SD-2.9-WT.PC.03-B-C-EN Page 6 of 8 Date of Release: ISO protective note to be attended-

8 Power Curve & Sound Power Level REpower MM92 [2050 kw] 3 Guaranteed electrical power curve und guaranteed sound power level 3 The sound power level guaranteed by REpower includes a measurement uncertainty of approx. 1 db(a). REpower warrants that there is no tonal audibility > 0 db. 3.1 Sound power level according to IEC for wind speed at hub height Wind speed v [m/s] Power P [kw] 4 Sound Power Level L WA [db(a)] 5 Thrust coefficient ct [-] Power coefficient cp [-] Valid for unrestricted operation only. During sound reduced operation different power and sound levels are effective. 4 Guaranteed on 690 V (for 50 Hz) / 575 V (for 60Hz) voltage level 5 Sound power level at hub height Document-No.: SD-2.9-WT.PC.03-B-C-EN Page 7 of 8 Date of Release: ISO protective note to be attended-

9 Power Curve & Sound Power Level REpower MM92 [2050 kw] 3.2 Sound power level according to IEC for wind speed at 10 m height HH v 10 [m/s] m L 5 WA [db(a)] m L 5 WA [db(a)] m L 5 WA [db(a)] All sound power levels above are based on wind speeds of v 10 at 10 m height. The data of the noise level are based on the requirements of the IEC : A1: The calculation of the wind speed in 10 m height is based on a roughness length of 0.05m. 3.3 Sound power level according to FGW Guideline at 95% of rated power The sound power level measured according to the Technische Richtlinie für Windenergieanlagen Teil 1: Rev. 18 der FGW at 95 % of the rated power is independent of the hub height: L WA, 95% = db(a) Document-No.: SD-2.9-WT.PC.03-B-C-EN Page 8 of 8 Date of Release: ISO protective note to be attended-

10 Preliminary Power Curve & Sound Power Level Sound Management II Type C [MM92/50Hz] Do not use as appendix to contract Power Curve & Sound Power Level Sound Management II Type C [MM92/50Hz] Preliminary Version Document-No.: SD-2.9-WT.PO.02-C-A-EN Page 1 of 8 Date of Release: ISO protective note to be attended-

11 Preliminary Power Curve & Sound Power Level Sound Management II Type C [MM92/50Hz] Do not use as appendix to contract The contents of this document are exclusively provided for informative purposes and of a descriptive and general nature only. The contents, in particular included product information for the wind turbine, statements regarding energy yields or regarding the wind survey as well as prepared documents/publications etc., are provided for information only. They represent neither an offer, nor investment, legal, or tax advice, nor a recommendation of any type. While gathered and provided with care, REpower Systems AG provides the information available in this document without warranty for the correctness / completeness, timeliness, accuracy, or availability of the retrievable and displayed information, prices, indices, general market data, evaluations, assessments, and other accessible contents only. It is also impossible to provide a guarantee regarding the accuracy, reliability, or completeness of the information. This also applies to contents provided by third parties. Assessments and evaluations reflect the opinion of REpower Systems AG at the time when this document was prepared. These may have become outdated or been changed in another manner due to current developments without the provided assessments, evaluations, prepared documents, and information having been and/or being changed. Any examples of use are non-binding and without claim for completeness. They do not demonstrate (customer) specific solutions, but rather provide an example for one general description of a possible application. REpower reserves the right to modify these examples of use at any time. REpower Systems AG is only responsible for products and services in accordance with the explicit provisions detailed in a separate written agreement for the respective products and services. REpower Systems AG Überseering Hamburg Tel.: Fax: Copyright 2011 REpower Systems AG All rights reserved. Protection Notice DIN ISO 16016: The reproduction, distribution and utilization of this document as well as the communication of its contents to others without explicit authorization in writing of REpower Systems AG is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design. Document-No.: SD-2.9-WT.PO.02-C-A-EN Page 2 of 8 Date of Release: ISO protective note to be attended-

12 Preliminary Power Curve & Sound Power Level Sound Management II Type C [MM92/50Hz] Do not use as appendix to contract Table of content Applicable Documents...4 List of Abbreviations and Units Introduction Conditions for guarantee and measurement of power curve and sound power level General information Conditions for power curve guarantee and measurement Conditions for sound power level guarantee and measurement Preliminary electrical power curve and sound power level Sound power level according to IEC for wind speed at hub height Sound power level according to IEC for wind speed at 10 m height...8 Document-No.: SD-2.9-WT.PO.02-C-A-EN Page 3 of 8 Date of Release: ISO protective note to be attended-

13 Preliminary Power Curve & Sound Power Level Sound Management II Type C [MM92/50Hz] Do not use as appendix to contract Applicable Documents The documents referred to in the table below are included for information only. Reference to them in this product description does not make them part of the contract. Titel Product Description Sound Management II Dokumenten-Nr. PD-2.5-WT.PO.02-D-* * If the products referred to in the table above are to be included within the project, the relevant product descriptions in their current version will be amended to the contract. List of Abbreviations and Units Abbreviation/Unit cp ct FGW IEC WEC Description Power coefficient Thrust coefficient Fördergesellschaft Windenergie e.v. International Electrotechnical Commission Wind Energy Converter Document-No.: SD-2.9-WT.PO.02-C-A-EN Page 4 of 8 Date of Release: ISO protective note to be attended-

14 Preliminary Power Curve & Sound Power Level Sound Management II Type C [MM92/50Hz] Do not use as appendix to contract 1 Introduction This document is intended to provide information only and therefore acts only as a preliminary non-committal guide. All values mentioned below can be subject to change based on subsequent calculations or measurements. No rights and obligations of any nature whatever can be derived from the general information given in this document. REpower is not responsible for any claims in conjunction with this information. This document shows the preliminary power curve and the preliminary sound power level of the REpower Sound Management II Type C [MM92/50Hz] and the corresponding guarantee and measurement conditions. 2 Conditions for guarantee and measurement of power curve and sound power level 2.1 General information Rotor diameter: Air density: Cut in wind speed: Cut out wind speed: Wind speed at hub height: Blades: 92.5 m kg/m³ ca. 3.0 m/s 24 m/s 10 minutes mean values clean, no ice/snow formation 2.2 Conditions for power curve guarantee and measurement Verification according to IEC : Turbulence intensity: 6 to 12 % Terrain: not complex according to IEC : Vertical wind shear coefficient (measured between hub height and hub height minus rotor diameter divided by 2): 0.2 Air density at location (10 minutes mean value): 1.13kg/m³ Temperature range: 35 C 1 For obstacle assessment according to : 2005 Annex A.2 the following condition applies: No obstacles with a height greater than 1/3 of the distance between the ground and the lower blade tip shall exist in the measurement sector within 0-4 rotor diameters of the wind turbine or met mast. Document-No.: SD-2.9-WT.PO.02-C-A-EN Page 5 of 8 Date of Release: ISO protective note to be attended-

15 Preliminary Power Curve & Sound Power Level Sound Management II Type C [MM92/50Hz] Do not use as appendix to contract Power factor: cos phi ~ 1 Anemometer type: Thies First Class Voltage level for measurement: 690 V (50 Hz) Arrangement of a measuring unit for the power curve measurement of a REpower MM Conditions for sound power level guarantee and measurement Verification according to IEC : A1: Roughness length (average peak): 0.05 m 2 Method 1, as outlined in section 7.3 of the IEC standard Document-No.: SD-2.9-WT.PO.02-C-A-EN Page 6 of 8 Date of Release: ISO protective note to be attended-

16 Preliminary Power Curve & Sound Power Level Sound Management II Type C [MM92/50Hz] Do not use as appendix to contract 3 Preliminary electrical power curve and sound power level 3 The sound power level guaranteed by REpower includes a measurement uncertainty of approx. 1 db(a). REpower warrants that there is no tonal audibility > 1 db. 3.1 Sound power level according to IEC for wind speed at hub height Wind speed v [m/s] Power P [kw] 4 Sound power level L WA [db(a)] 5 Thrust coefficient ct[-] Power coefficient cp [-] 3, Valid for Sound Management II Type C only. During other operation modes different power and sound levels are effective. 4 Guaranteed on 690 V (for 50 Hz) voltage level 5 Sound power level at hub height Document-No.: SD-2.9-WT.PO.02-C-A-EN Page 7 of 8 Date of Release: ISO protective note to be attended-

17 Preliminary Power Curve & Sound Power Level Sound Management II Type C [MM92/50Hz] Do not use as appendix to contract 3.2 Sound power level according to IEC for wind speed at 10 m height HH v 10 [m/s] m L 5 WA [db(a)] m L 5 WA [db(a)] m L 5 WA [db(a)] All sound power levels above are based on wind speeds of v 10 at 10 m height. The data of the noise level are based on the requirements of the IEC : A1: The calculation of the wind speed in 10m height is based on a roughness length of 0.05m. Document-No.: SD-2.9-WT.PO.02-C-A-EN Page 8 of 8 Date of Release: ISO protective note to be attended-

18 Power Curve & Sound Power Level Sound Management II Type A [MM92/50Hz] Power Curve & Sound Power Level Sound Management II Type A [MM92/50Hz] Document-No.: SD-2.9-WT.PO.02-A-A-EN Page 1 of 8 Date of Release: ISO protective note to be attended-

19 Power Curve & Sound Power Level Sound Management II Type A [MM92/50Hz] REpower Systems AG Überseering Hamburg Tel.: Fax: Copyright 2011 REpower Systems AG Disclaimer All rights reserved. Protection Notice DIN ISO 16016: The reproduction, distribution and utilization of this document as well as the communication of its contents to others without explicit authorization in writing of REpower Systems AG is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design. Please ensure to use the applicable specifications in their latest versions. Images do not necessarily reflect the exact scope of supply and are subject to technical alterations at any time. Please note that this document can not necessarily correspond with the projectspecific requirements. Possible work procedures shown in this product description comply with German and the REpower s own safety provisions and regulations. The national laws of other countries may provide for further safety specifications. It is essential that all precautionary measures, both project- and country-specific, be strictly complied with. It is the duty of each customer to inform itself, implement and observe these measures. The applicability and validity of the relevant legal and/or contractual provisions, the technical guidelines, DIN standards and other comparable regulations is not excluded by the contents or demonstrations contained in product description. Moreover these provisions and regulations shall continue to apply without any limitation. All information contained in this product description are subject to change at any time without notice or approval by the customer. REpower Systems AG assumes no liability for any errors or omissions in the content of this product description. Legal claims against REpower Systems AG based on damage caused by the use or non-use of the information offered here or the use of erroneous or incomplete information are excluded. All brands or product names mentioned in this document are the property of their respective holders. Document-No.: SD-2.9-WT.PO.02-A-A-EN Page 2 of 8 Date of Release: ISO protective note to be attended-

20 Power Curve & Sound Power Level Sound Management II Type A [MM92/50Hz] Table of content Applicable Documents...4 List of Abbreviations and Units Introduction Conditions for guarantee and measurement of power curve and sound power level General information Conditions for power curve guarantee and measurement Conditions for sound power level guarantee and measurement Guaranteed electrical power curve and guaranteed sound power level Sound power level according to IEC for wind speed at hub height Sound power level according to IEC for wind speed at 10 m height...8 Document-No.: SD-2.9-WT.PO.02-A-A-EN Page 3 of 8 Date of Release: ISO protective note to be attended-

21 Power Curve & Sound Power Level Sound Management II Type A [MM92/50Hz] Applicable Documents The documents referred to in the table below are included for information only. Reference to them in this product description does not make them part of the contract. Titel Product Description Sound Management II Dokumenten-Nr. PD-2.5-WT.PO.02-D-* * If the products referred to in the table above are to be included within the project, the relevant product descriptions in their current version will be amended to the contract. List of Abbreviations and Units Abbreviation/Unit cp ct FGW IEC WEC Description Power coefficient Thrust coefficient Fördergesellschaft Windenergie e.v. International Electrotechnical Commission Wind Energy Converter Document-No.: SD-2.9-WT.PO.02-A-A-EN Page 4 of 8 Date of Release: ISO protective note to be attended-

22 Power Curve & Sound Power Level Sound Management II Type A [MM92/50Hz] 1 Introduction This document shows the guaranteed power curve and sound power level of the REpower Sound Management II Type A [MM92/50Hz] and the corresponding guarantee and measurement conditions. 2 Conditions for guarantee and measurement of power curve and sound power level 2.1 General information Rotor diameter: Air density: Cut in wind speed: Cut out wind speed: Wind speed at hub height: Blades: 92.5 m kg/m³ ca. 3.0 m/s 24 m/s 10 minutes mean values clean, no ice/snow formation 2.2 Conditions for power curve guarantee and measurement Verification according to IEC : Turbulence intensity: 6 to 12 % Terrain: not complex according to IEC : Vertical wind shear coefficient (measured between hub height and hub height minus rotor diameter divided by 2): 0.2 Air density at location (10 minutes mean value): 1.13kg/m³ Temperature range: 35 C Power factor: cos phi ~ 1 Anemometer type: Voltage level for measurement: Thies First Class 690 V (50 Hz) 1 For obstacle assessment according to : 2005 Annex A.2 the following condition applies: No obstacles with a height greater than 1/3 of the distance between the ground and the lower blade tip shall exist in the measurement sector within 0-4 rotor diameters of the wind turbine or met mast. Document-No.: SD-2.9-WT.PO.02-A-A-EN Page 5 of 8 Date of Release: ISO protective note to be attended-

23 Power Curve & Sound Power Level Sound Management II Type A [MM92/50Hz] Arrangement of a measuring unit for the power curve measurement of a REpower MM Conditions for sound power level guarantee and measurement Verification according to IEC : A1: Roughness length (average peak): 0.05 m 2 Method 1, as outlined in section 7.3 of the IEC standard Document-No.: SD-2.9-WT.PO.02-A-A-EN Page 6 of 8 Date of Release: ISO protective note to be attended-

24 Power Curve & Sound Power Level Sound Management II Type A [MM92/50Hz] 3 Guaranteed electrical power curve and guaranteed sound power level 3 The sound power level guaranteed by REpower includes a measurement uncertainty of approx. 1 db(a). REpower warrants that there is no tonal audibility > 1 db. 3.1 Sound power level according to IEC for wind speed at hub height Wind speed v [m/s] Power P [kw] 4 Sound power level L WA [db(a)] 5 Thrust coefficient ct[-] Power coefficient cp [-] 3, , Valid for Sound Management II Type A only. During other operation modes different power and sound levels are effective. 4 Guaranteed on 690 V (for 50 Hz) voltage level 5 Sound power level at hub height Document-No.: SD-2.9-WT.PO.02-A-A-EN Page 7 of 8 Date of Release: ISO protective note to be attended-

25 Power Curve & Sound Power Level Sound Management II Type A [MM92/50Hz] 3.2 Sound power level according to IEC for wind speed at 10 m height HH v 10 [m/s] 4,0 5,0 6,0 7,0 8,0 9,0 10, ,5 m L 5 WA [db(a)] m L 5 WA [db(a)] m L 5 WA [db(a)] All sound power levels above are based on wind speeds of v 10 at 10 m height. The data of the noise level are based on the requirements of the IEC : A1: The calculation of the wind speed in 10m height is based on a roughness length of 0.05m. Document-No.: SD-2.9-WT.PO.02-A-A-EN Page 8 of 8 Date of Release: ISO protective note to be attended-

26 Preliminary Power Curve & Sound Power Level Sound Management II Type B [MM92/50Hz] Do not use as appendix to contract Power Curve & Sound Power Level Sound Management II Type B [MM92/50Hz] Preliminary Version Document-No.: SD-2.9-WT.PO.02-B-A-EN Page 1 of 8 Date of Release: ISO protective note to be attended-

27 Preliminary Power Curve & Sound Power Level Sound Management II Type B [MM92/50Hz] Do not use as appendix to contract The contents of this document are exclusively provided for informative purposes and of a descriptive and general nature only. The contents, in particular included product information for the wind turbine, statements regarding energy yields or regarding the wind survey as well as prepared documents/publications etc., are provided for information only. They represent neither an offer, nor investment, legal, or tax advice, nor a recommendation of any type. While gathered and provided with care, REpower Systems AG provides the information available in this document without warranty for the correctness / completeness, timeliness, accuracy, or availability of the retrievable and displayed information, prices, indices, general market data, evaluations, assessments, and other accessible contents only. It is also impossible to provide a guarantee regarding the accuracy, reliability, or completeness of the information. This also applies to contents provided by third parties. Assessments and evaluations reflect the opinion of REpower Systems AG at the time when this document was prepared. These may have become outdated or been changed in another manner due to current developments without the provided assessments, evaluations, prepared documents, and information having been and/or being changed. Any examples of use are non-binding and without claim for completeness. They do not demonstrate (customer) specific solutions, but rather provide an example for one general description of a possible application. REpower reserves the right to modify these examples of use at any time. REpower Systems AG is only responsible for products and services in accordance with the explicit provisions detailed in a separate written agreement for the respective products and services. REpower Systems AG Überseering Hamburg Tel.: Fax: Copyright 2011 REpower Systems AG All rights reserved. Protection Notice DIN ISO 16016: The reproduction, distribution and utilization of this document as well as the communication of its contents to others without explicit authorization in writing of REpower Systems AG is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design. Document-No.: SD-2.9-WT.PO.02-B-A-EN Page 2 of 8 Date of Release: ISO protective note to be attended-

28 Preliminary Power Curve & Sound Power Level Sound Management II Type B [MM92/50Hz] Do not use as appendix to contract Table of content Applicable Documents...4 List of Abbreviations and Units Introduction Conditions for guarantee and measurement of power curve and sound power level General information Conditions for power curve guarantee and measurement Conditions for sound power level guarantee and measurement Preliminary electrical power curve and sound power level Sound power level according to IEC for wind speed at hub height Sound power level according to IEC for wind speed at 10 m height...8 Document-No.: SD-2.9-WT.PO.02-B-A-EN Page 3 of 8 Date of Release: ISO protective note to be attended-

29 Preliminary Power Curve & Sound Power Level Sound Management II Type B [MM92/50Hz] Do not use as appendix to contract Applicable Documents The documents referred to in the table below are included for information only. Reference to them in this product description does not make them part of the contract. Titel Product Description Sound Management II Dokumenten-Nr. PD-2.5-WT.PO.02-D-* * If the products referred to in the table above are to be included within the project, the relevant product descriptions in their current version will be amended to the contract. List of Abbreviations and Units Abbreviation/Unit cp ct FGW IEC WEC Description Power coefficient Thrust coefficient Fördergesellschaft Windenergie e.v. International Electrotechnical Commission Wind Energy Converter Document-No.: SD-2.9-WT.PO.02-B-A-EN Page 4 of 8 Date of Release: ISO protective note to be attended-

30 Preliminary Power Curve & Sound Power Level Sound Management II Type B [MM92/50Hz] Do not use as appendix to contract 1 Introduction This document is intended to provide information only and therefore acts only as a preliminary non-committal guide. All values mentioned below can be subject to change based on subsequent calculations or measurements. No rights and obligations of any nature whatever can be derived from the general information given in this document. REpower is not responsible for any claims in conjunction with this information This document shows the preliminary power curve and the preliminary sound power level of the REpower Sound Management II Type B [MM92/50Hz] and the corresponding guarantee and measurement conditions. 2 Conditions for guarantee and measurement of power curve and sound power level 2.1 General information Rotor diameter: Air density: Cut in wind speed: Cut out wind speed: Wind speed at hub height: Blades: 92.5 m kg/m³ ca. 3.0 m/s 24 m/s 10 minutes mean values clean, no ice/snow formation 2.2 Conditions for power curve guarantee and measurement Verification according to IEC : Turbulence intensity: 6 to 12 % Terrain: not complex according to IEC : Vertical wind shear coefficient (measured between hub height and hub height minus rotor diameter divided by 2): 0.2 Air density at location (10 minutes mean value): 1.13kg/m³ Temperature range: 35 C 1 For obstacle assessment according to : 2005 Annex A.2 the following condition applies: No obstacles with a height greater than 1/3 of the distance between the ground and the lower blade tip shall exist in the measurement sector within 0-4 rotor diameters of the wind turbine or met mast. Document-No.: SD-2.9-WT.PO.02-B-A-EN Page 5 of 8 Date of Release: ISO protective note to be attended-

31 Preliminary Power Curve & Sound Power Level Sound Management II Type B [MM92/50Hz] Do not use as appendix to contract Power factor: cos phi ~ 1 Anemometer type: Thies First Class Voltage level for measurement: 690 V (50 Hz) Arrangement of a measuring unit for the power curve measurement of a REpower MM Conditions for sound power level guarantee and measurement Verification according to IEC : A1: Roughness length (average peak): 0.05 m 2 Method 1, as outlined in section 7.3 of the IEC standard Document-No.: SD-2.9-WT.PO.02-B-A-EN Page 6 of 8 Date of Release: ISO protective note to be attended-

32 Preliminary Power Curve & Sound Power Level Sound Management II Type B [MM92/50Hz] Do not use as appendix to contract 3 Preliminary electrical power curve and sound power level 3 The sound power level guaranteed by REpower includes a measurement uncertainty of approx. 1 db(a). REpower warrants that there is no tonal audibility > 1 db. 3.1 Sound power level according to IEC for wind speed at hub height Wind speed v [m/s] Power P [kw] 4 Sound power level L WA [db(a)] 5 Thrust coefficient ct[-] Power coefficient cp [-] 3, , Valid for Sound Management II Type B only. During other operation modes different power and sound levels are effective. 4 Guaranteed on 690 V (for 50 Hz) voltage level 5 Sound power level at hub height Document-No.: SD-2.9-WT.PO.02-B-A-EN Page 7 of 8 Date of Release: ISO protective note to be attended-

33 Preliminary Power Curve & Sound Power Level Sound Management II Type B [MM92/50Hz] Do not use as appendix to contract 3.2 Sound power level according to IEC for wind speed at 10 m height HH v 10 [m/s] 4,0 5,0 6,0 7,0 8,0 9,0 10, ,5 m L 5 WA [db(a)] m L 5 WA [db(a)] m L 5 WA [db(a)] All sound power levels above are based on wind speeds of v 10 at 10 m height. The data of the noise level are based on the requirements of the IEC : A1: The calculation of the wind speed in 10m height is based on a roughness length of 0.05m. Document-No.: SD-2.9-WT.PO.02-B-A-EN Page 8 of 8 Date of Release: ISO protective note to be attended-

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37 Summary of Test Report (Conversion of hub height of 108 m to 98 m) /1/ Basic sheet "Geräusche" (Noise), according to the "Technische Richtlinien für Windenergieanlagen, Teil 1: Bestimmung der Schallemissionswerte" (Technical Guidelines for Wind Energy Converters, Part 1: Determination of sound emission values) Rev. 18 of February 1, 2008 (Editor: Fördergesellschaft Windenergie e.v. Stresemannplatz 4, D Kiel) Extract of Test Report IEC on noise emission of wind energy converter of type E-82 E2 General Data Technical Data (manufacturer s specifications) Manufacturer of WEC: Enercon GmbH Rated power (generator): kw Serial number: Diameter of rotor: 82 m Location of WEC (ca.): Großefehn Hub height above ground: 98 m *** Geographic co-ordinates: GK longitude: Type of tower: conical tube tower GK latitude: Power control: Pitch Complementary rotor data (manufacturer s specifications) Complementary data of gear unit and generator (manufacturer s specifications) Manufacturer of rotor blade: Enercon Manufacturer of gear unit: not applicable Type of rotor blade: E-82 E2 Type of gear unit: not applicable Blade setting angle: variable Manufacturer of generator: Enercon Number of rotor blades: 3 Type of generator: E-82 E2 Rotor speed range: 6 to 18 r.p.m. (mode OM I) Generator speed range: 6 to 18 r.p.m. (mode OM I) sound power level L WA,P tonal audibility L a,k impulse adjustment for small distances K IN Third-octave band sound power level Calculated Performance Chart ENERCON E-82 E2; calculated by ENERCON (Rev. 3.0) Reference Point Noise emission standardized wind speed in true electrical power parameters 10 m height Observations 5 ms kw 96.0 db(a) (*) 6 ms -1 1,049 kw db(a) 7 ms -1 1,567 kw db(a) 8 ms -1 2,001 kw db(a) 9 ms -1 2,235 kw db(a) 10 ms -1 2,300 kw db(a) 5 ms -1 kw db 6 ms -1 kw <- 3.0 db 7 ms -1 kw db 8 ms -1 kw db 9 ms -1 kw 0.2 db 10 ms -1 kw db 5 ms -1 kw 0 db 6 ms -1 kw 0 db 7 ms -1 kw 0 db 8 ms -1 kw 0 db 9 ms -1 kw 0 db 10 ms -1 kw 0 db for v s = 5 ms -1 in db(a) Frequency L WA,P * Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P * 59.9* Octave band sound power level for v s = 5 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P Third-octave band sound power level for v s = 6 ms -1 in db(a) Frequency L WA,P 78.0** 78.9* * 89.3* 93.0 Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P

38 Octave band sound power level for v s = 6 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P 84.7* Third-octave band sound power level for v s = 7 ms -1 in db(a) Frequency L WA,P 78.5** Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P Octave band sound power level for v s = 7 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P 85.4* Third-octave band sound power level for v s = 8 ms -1 in db(a) Frequency L WA,P 77.4* * 94.8 Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P Octave band sound power level for v s = 8 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P Third-octave band sound power level for v s = 9 ms -1 in db(a) Frequency L WA,P * 94.0 Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P * Octave band sound power level for v s = 9 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P * Third-octave band sound power level for v s = 10 ms -1 in db(a) Frequency L WA,P * * 92.8* Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P Octave band sound power level for v s = 10 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P * This summary of the test report is valid only in combination with the certification of the manufacturer of 03/05/2010. These specifications do not replace the test report mentioned above (particularly for noise immission predictions). Observations: * Difference between working and background noise < 6 db, correction by 1.3 db ** Difference between working and background noise < 3 db, values shall not be presented *** Conversion of hub height of 108 m to 98 m /1/ Wind turbine generator systems Part 11: Acoustic noise; measurement techniques (IEC :2002 and A1:2006); German version DIN EN :2007 Measured by: Date: 08/02/2010 KÖTTER Consulting Engineers - Rheine - i. V. Dipl.-Ing. O. Bunk i. A. Dipl.-Ing. J. Weinheimer

39 Auszug aus dem Prüfbericht Stammblatt "Geräusche", entsprechend den "Technischen Richtlinien für Windenergieanlagen, Teil 1: Bestimmung der Schallemissionswerte" Rev. 18 vom 01.Februar 2008 (Herausgeber: Fördergesellschaft Windenergie e.v. Stresemannplatz 4, D Kiel) Auszug aus dem Prüfbericht zur Schallemission der Windenergieanlage vom Typ E-82 E2 Allgemeine Angaben Technische Daten (Herstellerangaben) Anlagenhersteller Enercon GmbH Nennleistung (Generator): kw Seriennummer: Rotordurchmesser: 82 m WEA-Standort (ca.): Großefehn Nabenhöhe über Grund: 108,4 m Standortkoordinaten: RW: Turmbauart: Konischer Rohrturm HW: Leistungsregelung: Pitch Ergänzende Daten zum Rotor (Herstellerangaben) Ergänzende Daten zu Getriebe und Generator (Herstellerangaben) Rotorblatthersteller Enercon Getriebehersteller entfällt Typenbezeichnung Blatt: E-82-2 Typenbezeichnung Getriebe: entfällt Blatteinstellwinkel: variabel Generatorhersteller Enercon Rotorblattanzahl: 3 Typenbezeichnung Generator: E-82 E2 Rotordrehzahlbereich: 6-18 U/min (Betrieb I) Generatornenndrehzahl: 18 U/min (Betrieb I) Schallleistungs-Pegel L WA,P Tonzuschlag für den Nahbereich K TN Impulszuschlag für den Nahbereich K IN Terz-Schallleistungspegel Leistungskurve: Kennlinie E-82 E2, 2.3 MW, berechnet Rev 3_0 Referenzpunkt Normierte Windgeschwindigkeit in 10 m Höhe Elektrische Wirkleistung Schallemissions- Parameter Bemerkungen 5 ms kw 96,4 db(a) 6 ms kw 100,6 db(a) 7 ms kw 102,5 db(a) 8 ms kw 103,2 db(a) 9 ms kw 103,3 db(a) 10 ms kw 102,9 db(a) 8,6 ms kw 103,4 db(a) (1) 5 ms kw 0 db 6 ms kw 0 db 7 ms kw 0 db 8 ms kw 0 db 9 ms kw 1 db bei 130 Hz (2) 10 ms kw 0 db 8,6 ms kw 1 db bei 130 Hz (1) (2) 5 ms kw 0 db 6 ms kw 0 db 7 ms kw 0 db 8 ms kw 0 db 9 ms kw 0 db 10 ms kw 0 db 8,6 ms kw 0 db (1) für v s = 8,6 ms -1 in db(a) entsprechend dem maximalen Schallleistungspegel Frequenz L WA,P,max 78,6 81,6 84,1 85,9 92,7 88,3 86,5 90,4 90,8 91,9 91,6* 94,0 Frequenz L WA,P,max 94,1 94,5 93,5 91,6 88,5 84,7 80,0 75,5 69,4 65,6* 66,5 71,6 Oktav-Schallleistungspegel für v s = 8,6 ms -1 in db(a) entsprechend dem maximalen Schallleistungspegel Frequenz L WA,P,max 86,7 94,7 94,4 97* 98,8 93,9 81,6 73,5 Dieser Auszug aus dem Prüfbericht gilt nur in Verbindung mit der Herstellerbescheinigung vom Die Angaben ersetzen nicht den o. g. Prüfbericht (insbesondere bei Schallimmissionsprognosen). Bemerkungen: (1) Die normierte Windgeschwindigkeit von v s = 8,6 ms -1 entspricht 95 % der Nennleistung. (2) nach dem subjektiven Höreindruck K TN = 0 db * Abstand zwischen Anlagengeräusch und Fremdgeräusch < 6 db, Pegelkorrektur um 1,3 db Gemessen durch: Datum: KÖTTER Consulting Engineers KG - Rheine - i. V. Dipl.-Ing. Oliver Bunk i. A. Dipl.-Ing. Jürgen Weinheimer

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42 Auszug aus dem Prüfbericht Stammblatt "Geräusche", entsprechend den "Technischen Richtlinien für Windenergieanlagen, Teil 1: Bestimmung der Schallemissionswerte" Rev. 18 vom 01.Februar 2008 (Herausgeber: Fördergesellschaft Windenergie e.v. Stresemannplatz 4, D Kiel) Auszug aus dem Prüfbericht zur Schallemission der Windenergieanlage vom Typ E-82 E2 Allgemeine Angaben Technische Daten (Herstellerangaben) Anlagenhersteller Enercon GmbH Nennleistung (Generator): kw (reduziert) Seriennummer: Rotordurchmesser: 82 m WEA-Standort (ca.): Großefehn Nabenhöhe über Grund: 108,4 m Standortkoordinaten: RW: Turmbauart: Konischer Rohrturm HW: Leistungsregelung: Pitch Ergänzende Daten zum Rotor (Herstellerangaben) Ergänzende Daten zu Getriebe und Generator (Herstellerangaben) Rotorblatthersteller Enercon Getriebehersteller entfällt Typenbezeichnung Blatt: E-82-2 Typenbezeichnung Getriebe: entfällt Blatteinstellwinkel: variabel Generatorhersteller Enercon Rotorblattanzahl: 3 Typenbezeichnung Generator: E-82 E2 Rotordrehzahlbereich: 6 15,5 U/min (Leistungsreduzierter Betrieb, kw) Generatornenndrehzahl: 15,5 U/min (reduziert) Schallleistungs-Pegel L WA,P Tonzuschlag für den Nahbereich K TN Impulszuschlag für den Nahbereich K IN Leistungskurve: Kennlinie E-82 E2, kw, berechnet Rev. 1_3 Referenzpunkt Normierte Windgeschwindigkeit in 10 m Höhe Elektrische Wirkleistung Schallemissions- Parameter Bemerkungen 5 ms kw 96,5 db(a) 6 ms kw 98,8 db(a) 7 ms kw 98,7 db(a) 8 ms kw 98,2 db(a) (*) 9 ms kw 98,5 db(a) (*) (3) 10 ms kw -- (2) 6,6 ms kw 98,9 db(a) (1) 5 ms kw 0 db 6 ms kw 0 db 7 ms kw 0 db 8 ms kw 0 db 9 ms kw 0 db (3) 10 ms kw -- (2) 6,6 ms kw 0 db (1) 5 ms kw 0 db 6 ms kw 0 db 7 ms kw 0 db 8 ms kw 0 db 9 ms kw 0 db (3) 10 ms kw -- (2) 6,6 ms kw 0 db (1) für v s = 6,6 ms -1 in db(a) entsprechend dem maximalen Schallleistungspegel Terz-Schallleistungspegel Frequenz L WA,P,max 78,0** 79,0* 81,6 85,6 86,6 83,5* 84,5* 85,6* 86,5* 87,4** 88,3** 89,4* Frequenz L WA,P,max 88,9* 89,2 88,6 86,7 83,1 79,8 75,4 70,9 66,9 63,7 65,5 -- 3) Oktav-Schallleistungspegel für v s = 6,6 ms -1 in db(a) entsprechend dem maximalen Schallleistungspegel Frequenz L WA,P,max 84,6* 90,2 90,4* 93,2* 93,7 88,8 77,2 -- 3) Dieser Auszug aus dem Prüfbericht gilt nur in Verbindung mit der Herstellerbescheinigung vom Die Angaben ersetzen nicht den o. g. Prüfbericht (insbesondere bei Schallimmissionsprognosen). Bemerkungen: (1) Die normierte Windgeschwindigkeit von v s = 6,6 ms -1 entspricht 95 % der Nennleistung. (2) Witterungsbedingt keine Daten bei WEA-Betrieb vorhanden (3) Terzfrequenzpegel durch Einstreuung erhöht, Gesamtpegel dadurch unverändert * Abstand zwischen Anlagengeräusch und Fremdgeräusch < 6 db, Pegelkorrektur um 1,3 db ** Abstand zwischen Anlagengeräusch und Fremdgeräusch < 3 db, keine Pegelkorrektur Gemessen durch: Datum: KÖTTER Consulting Engineers KG - Rheine - i. V. Dipl.-Ing. Oliver Bunk i. A. Dipl.-Ing. Jürgen Weinheimer

43 Summary of Test Report (Measured hub height of 108 m) /1/ Basic sheet "Geräusche" (Noise), according to the "Technische Richtlinien für Windenergieanlagen, Teil 1: Bestimmung der Schallemissionswerte" (Technical Guidelines for Wind Energy Converters, Part 1: Determination of sound emission values) Rev. 18 of February 1, 2008 (Editor: Fördergesellschaft Windenergie e.v. Stresemannplatz 4, D Kiel) Extract of Test Report IEC on noise emission of wind energy converter of type E-82 E2 General Data Technical Data (manufacturer s specifications) Manufacturer of WEC: Enercon GmbH Rated power (generator): kw (reduced) Serial number: Diameter of rotor: 82 m Location of WEC (ca.): Großefehn Hub height above ground: 108 m Geographic co-ordinates: GK longitude: Type of tower: conical tube tower GK latitude: Power control: Pitch Complementary rotor data (manufacturer s specifications) Complementary data of gear unit and generator (manufacturer s specifications) Manufacturer of rotor blade: Enercon Manufacturer of gear unit: not applicable Type of rotor blade: E-82 E2 Type of gear unit: not applicable Blade setting angle: variable Manufacturer of generator: Enercon Number of rotor blades: 3 Type of generator: E-82 E2 Rotor speed range: 6 to 18 r.p.m. (mode OM I) Generator speed range: 6 to 18 r.p.m. (mode OM I) sound power level L WA,P tonal audibility L a,k impulse adjustment for small distances K IN Third-octave band sound power level Calculated Performance Chart ENERCON E-82 E2; 2,000 kw; calculated by ENERCON (Rev. 3.0) Reference Point Noise emission standardized wind speed in true electrical power parameters 10 m height Observations 5 ms kw 96.8 db(a) (1) 6 ms -1 1,077 kw db(a) 7 ms -1 1,605 kw db(a) 8 ms -1 1,925 kw db(a) 9 ms -1 2,000 kw db(a) 10 ms -1 2,000 kw db(a) (*) 5 ms kw < db (1) 6 ms -1 1,077 kw < db 7 ms -1 1,605 kw db 8 ms -1 1,925 kw db 9 ms -1 2,000 kw 0.0 db 10 ms -1 2,000 kw db 5 ms kw 0 db (1) 6 ms -1 1,077 kw 0 db 7 ms -1 1,605 kw 0 db 8 ms -1 1,925 kw 0 db 9 ms -1 2,000 kw 0 db 10 ms -1 2,000 kw 0 db for v s = 5 ms -1 in db(a) Frequency L WA,P * Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P * 60.0* Octave band sound power level for v s = 5 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P Third-octave band sound power level for v s = 6 ms -1 in db(a) Frequency L WA,P 78.8** * 88.8* 91.6 Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P

44 Octave band sound power level for v s = 6 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P 85.9* Third-octave band sound power level for v s = 7 ms -1 in db(a) Frequency L WA,P 79.9** * 85.6* * 90.6* 90.9* 93.4 Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P Octave band sound power level for v s = 7 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P 86.0* Third-octave band sound power level for v s = 8 ms -1 in db(a) Frequency L WA,P * 93.7 Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P Octave band sound power level for v s = 8 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P Third-octave band sound power level for v s = 9 ms -1 in db(a) Frequency L WA,P * 93.2 Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P Octave band sound power level for v s = 9 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P Third-octave band sound power level for v s = 10 ms -1 in db(a) Frequency L WA,P * * 90.1* 90.3* 92.2* Frequency 800 1,000 1,250 1,600 2,000 2,500 3,150 4,000 5,000 6,300 8,000 10,000 L WA,P Octave band sound power level for v s = 10 ms -1 in db(a) Frequency ,000 2,000 4,000 8,000 L WA,P * 95.7* This summary of the test report is valid only in combination with the certification of the manufacturer of 03/05/2010. These specifications do not replace the test report mentioned above (particularly for noise immission predictions). Observations: (1) Lowest wind speed measured v s = 5,02 m/s * Difference between working and background noise < 6 db, correction by 1.3 db ** Difference between working and background noise < 3 db, values shall not be presented /1/ Wind turbine generator systems Part 11: Acoustic noise; measurement techniques (IEC :2002 and A1:2006); German version DIN EN :2007 Measured by: Date: 8/06/2010 KÖTTER Consulting Engineers - Rheine - i. V. Dipl.-Ing. O. Bunk i. A. Dipl.-Ing. J. Weinheimer

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