Wind Turbine Specifications Report DRAFT

Transcription

1 DRAFT Prepared by: AECOM Goderich Road tel Hamilton, ON, Canada L8E 4W fax October, 2016 Project Number:

2 Statement of Qualifications and Limitations The attached Report (the Report ) has been prepared by AECOM Canada Ltd. ( AECOM ) for the benefit of Otter Creek Wind Limited Partnership (the Client ) in accordance with the agreement between AECOM and Client, including the scope of work detailed therein (the Agreement ). The information, data, recommendations and conclusions contained in the Report (collectively, the Information ): is subject to the scope, schedule, and other constraints and limitations in the Agreement and the qualifications contained in the Report (the Limitations ); represents AECOM s professional judgement in light of the Limitations and industry standards for the preparation of similar reports; may be based on information provided to AECOM which has not been independently verified; has not been updated since the date of issuance of the Report and its accuracy is limited to the time period and circumstances in which it was collected, processed, made or issued; must be read as a whole and sections thereof should not be read out of such context; was prepared for the specific purposes described in the Report and the Agreement; and in the case of subsurface, environmental or geotechnical conditions, may be based on limited testing and on the assumption that such conditions are uniform and not variable either geographically or over time. AECOM shall be entitled to rely upon the accuracy and completeness of information that was provided to it and has no obligation to update such information. AECOM accepts no responsibility for any events or circumstances that may have occurred since the date on which the Report was prepared and, in the case of subsurface, environmental or geotechnical conditions, is not responsible for any variability in such conditions, geographically or over time. AECOM agrees that the Report represents its professional judgement as described above and that the Information has been prepared for the specific purpose and use described in the Report and the Agreement, but AECOM makes no other representations, or any guarantees or warranties whatsoever, whether express or implied, with respect to the Report, the Information or any part thereof. Except (1) as agreed to in writing by AECOM and Client; (2) as required by-law; or (3) to the extent used by governmental reviewing agencies for the purpose of obtaining permits or approvals, the Report and the Information may be used and relied upon only by Client. AECOM accepts no responsibility, and denies any liability whatsoever, to parties other than Client who may obtain access to the Report or the Information for any injury, loss or damage suffered by such parties arising from their use of, reliance upon, or decisions or actions based on the Report or any of the Information ( improper use of the Report ), except to the extent those parties have obtained the prior written consent of AECOM to use and rely upon the Report and the Information. Any injury, loss or damages arising from improper use of the Report shall be borne by the party making such use. This Statement of Qualifications and Limitations is attached to and forms part of the Report and any use of the Report is subject to the terms hereof. AECOM: AECOM Canada Ltd. All Rights Reserved. ( )

3 Table of Contents 1. Introduction... 1 page 1.1 Name of Applicant Summary of Requirements The Proponent Project Location Technical Specifications Description of the Energy Source, Nameplate Capacity and Class of the Facility Summary of Key Project Information and Wind Turbine Specifications Turbine Components Acoustic Emissions Data References List of Figures Figure 1-1: Project Boundary... 3 Figure 2-1: Basic Wind Turbine Generator Specifications... 6 Figure 2-2: Nacelle Arrangement... 7 List of Tables Table 1-1: Adherence to Wind Turbine Specification Report Requirements under O. Reg.359/09, as Amended... 1 Table 2-1: Summary of Key Project Information... 5 Table 3-1: Enercon E-141 Turbines Linear Octave Band Sound Power Levels... 9 Acronyms and Abbreviations dba... Decibels km... Kilometres kv... Kilovolts m... Metres m/s... Metres per second m 2... Metres squared MOECC... Ontario Ministry of the Environment and Climate Change MW... Megawatts Otter Creek... Otter Creek Wind Farm LP O. Reg.... Ontario Regulation PDR... Project Description Report Project... Otter Creek Wind Farm REA... Renewable Energy Approval RES Canada... Renewable Energy Systems Canada ( )

4 1. Introduction 1.1 Name of Applicant The Otter Creek Wind Farm (the Project) is being proposed by Otter Creek Wind Farm Limited Partnership (Otter Creek), a partnership of Renewable Energy Systems Canada (RES Canada) and Boralex Inc. In close proximity to the Project is Walpole Island First Nation who is a participant of this project. The Project is also grateful to have received support from the Municipality of Chatham-Kent which has been granted an option to participate in the Project. This was prepared in accordance with the requirements of the Renewable Energy Approval (REA) process outlined in Ontario Regulation (O. Reg.) 359/09, as amended, and the Technical Guide to Renewable Energy Approvals (Ontario Ministry of the Environment and Climate Change (MOECC), MOECC, 2013). The following sections outline the specifications of the turbine technology selected for this Project. 1.2 Summary of Requirements The requirements for the as defined under O. Reg. 359/09, as amended, and where those requirements are addressed in this report are provided in the following table (Table 1-1). Table 1-1: Adherence to Wind Turbine Specification Report Requirements under O. Reg.359/09, as Amended Requirement The make, model, name plate capacity, hub height above grade and rotational speeds. The acoustic emissions data, determined and reported in accordance with standard CAN/CSA-C , Wind Turbine Generator Systems Part 11: Acoustic Noise Measurement Techniques, dated October 2007, including the overall sound power level, measurement uncertainty value, octave-band sound power levels (linear weighted) and tonality and tonal audibility. Completed Corresponding Section Yes Section 2 (Table 2-1) Yes Section 3 This will be provided to Municipality of Chatham-Kent 90 days in advance of the second public meeting. It will also be provided to Aboriginal communities, government agencies and the public for review 60 days in advance of the second public meeting. These timelines align with the distribution requirements outlined in O. Reg. 359/09, as amended, and the Technical Guide to Renewable Energy Approvals (MOECC, 2013). ( ) 1

5 1.3 The Proponent Applicant: As noted above, Otter Creek Wind Farm LP is a joint venture limited partnership owned by affiliates of RES Canada and Boralex Inc. The contacts for the Project are as follows: Asier Ania Project Manager, Development Boralex Inc Mill Street, Milton, ON L9T 1S2 Phone: ext asier.ania@boralex.com Consultant: Mark van der Woerd Senior Project Manager AECOM 45 Goderich Road, Hamilton, ON L8E 4W8 Phone: (905) mark.vanderwoerd@aecom.com Project: Project Phone: Project info@ottercreekwindfarm.ca Project Website: Project Location Otter Creek is proposing to develop a wind energy project located north of the community of Wallaceburg in the Municipality of Chatham-Kent, Ontario. The location of the Project was determined based on interest expressed by local landowners, municipal support for the Project, the availability of wind resources, and the availability of existing infrastructure to facilitate a connection to the electrical grid. Under Ontario Regulation (O. Reg.) 359/09, as amended, the Project Location is a part of land and all or part of any building or structure in, on, or over which a person is engaging in or proposes to engage in the project and any air space in which a person is engaging in or proposes to engage in the project. As described therein, the project location boundary is the outer limit of where site preparation and construction activities will most likely occur (i.e., disturbance areas described below) and where permanent infrastructure will most likely be located, including the air space occupied by turbine blades. The Project Boundary is generally bounded by Whitebread Line and Kent Line to the north, Payne Road to the west, Stewart Line and McCreary Line to the south and Mandaumin Road / County Road 44 to the east. Figure 1-1 shows a map of the Project Boundary. The following co-ordinates define corners of the external boundaries of the Project Boundary: Longitude Latitude ( ) 2

6 Figure 1-1: Project Boundary ( ) 3

7 The Project Boundary encompasses approximately 11,400 acres 1 of land that is predominantly designated for agricultural use according to the Municipality of Chatham-Kent s Official Plan (2016) and Zoning By-law (2015). The Project Boundary also consists of fragmented areas of forest and riparian habitat associated with the Sydenham River, which bisects the Project flowing in a north-south direction, as well as other small creeks and/or farm drains. The majority of the Project will be located on privately owned land with some components (e.g., electrical collector lines and entrances to access roads) being placed along public RoW. Otter Creek has entered into lease agreements with private land owners within the Project Boundary and will enter into a road user agreement with the Municipality of Chatham-Kent as part of the Project. Legal descriptions of the land parcels to be used for the Project are provided in Appendix A of the Project Description Report (PDR). 1. Metric units are used throughout REA documentation when describing the size of Project infrastructure, except in instances describing areas of land. When describing land size, acres (imperial) will be used rather than hectares (metric) because it is the measuring unit most commonly used by the local community. It is assumed that 1 hectare of land is equal to 2.47 acres of land. ( ) 4

8 2. Technical Specifications 2.1 Description of the Energy Source, Nameplate Capacity and Class of the Facility The Project will use wind to generate energy through the use of commercial wind turbine technology. The proposed wind turbine technology for this project is the Enercon E-141 turbine. The Project s nameplate capacity is up to 50 megawatts (MW) and the wind farm will consist of 12 turbines consisting of Enercon E MW and Enercon E MW turbines. The Project is categorized as a Class 4 wind facility and will be in compliance with the requirements outlined for such facilities. 2.2 Summary of Key Project Information and Wind Turbine Specifications A summary of key Project information is presented in the table below. Table 2-1: Summary of Key Project Information General Project Name: Otter Creek Wind Farm Project Ownership and Operation: Otter Creek Wind Farm LP Project Lifespan (commercial operation): 20 Years Project Nameplate Capacity: Up to 50 Megawatts (MW) Project Location Area Location of Project: Privately-owned land and public road allowances in the Municipality of Chatham-Kent Total Project Boundary Area Approximately 11,400 acres Project Location Area/ Construction Disturbance Area (CDA) Approximately 840 acres Wind Turbine Make and Model: Enercon E-141 Generators Total Number Permitted: 12 turbines Approximate Number to be Constructed: 12 turbines Nominal Turbine Power: Up to 4.2 MW Number of Blades: 3 Blade Length: 66.7 meters (m) Rotational Speed: rotations per minute Hub Height: 129 m Rotor Diameter: 141 m Cut-in Wind Speed: 2.5 metres per second (m/s) Cut-out Wind Speed: 28.0 m/s (reduced mode up to 34.0 m/s) Swept Area: 15,614.5 metres squared (m 2 ) Foundation Dimensions: Approximately 30 m diameter Turbine Components As shown on Figure 2-1, the Enercon E-141 wind turbine is made up of four main components: the foundation, tower, nacelle (e.g., hub) and blades (Enercon, 2016a). The nacelle will be mounted on a tubular steel and/or concrete tower which contains an internal personnel hoists and lifts for maintenance access. A prefabricated power module is located at the bottom of the tower and provides the platform for the power converter. The turbine collector transformer will be located within the wind turbines and as the Enercon E-141 is a direct drive machine ( ) 5

9 that does not contain a gearbox. The turbine will be constructed on a foundation that will be up to 30 m in diameter. The foundation consists of poured concrete, steel rebar, and piles, if necessary, to provide added strength. Figure 2-1: Basic Wind Turbine Generator Specifications Blade Swept Area ( m 2 ) Blade Length (66.7 m) Nacelle Tower Hub Height (129 m) Image Not to Scale Foundation The three 66.7 m blades of the Enercon E-141 wind turbine will generate electricity between the wind speeds of 2.5 m/s (i.e., the cut-in wind speed) and 34.0 m/s (i.e., the cut-out wind speed). Most of the equipment used to convert wind energy into electricity is contained in the nacelle of the turbine. The nacelle also acts as a sound enclosure to reduce sound emissions. Another feature that reduces sound emission is the trailing edge serrations ( ) 6

10 or saw-tooth shaped plates which are added to the trailing edge of the turbine blades. These saw-tooth features help break up the air flow around the turbine blades and decrease turbulence, reducing turbulence and in turn reducing the aerodynamic noise generated by the turbines. Figure 2-2: Nacelle Arrangement Legend: 1 Slip ring unit 2 Hub 3 Hub adapter 4 Blade adapter 5 Generator rotor 6 Generator stator 7 Stator support 8 Beacon system (optional) 9 Generator stator water cooling system chiller 10 Wind measuring unit with lightning rods 11 Winch 12 Yaw drives 13 Main carrier 14 Nacelle casing Source: Enercon, 2016a In order to maximize electricity production, the wind turbine is designed to automatically rotate (yaw) into the wind and adjust the pitch of the blades. In low and medium wind speed conditions, the blade pitch setting is slowly adjusted to provide maximum power output. In high wind conditions, the power output can be limited on all wind turbines in order to prevent the generator from overloading. The nacelle includes major wind turbine components such as the main shaft, bearing, brake disc and generator but does not include a gearbox, as other turbines often do. The nacelle casing is made of aluminium. It consists of multiple sections that attach to the generator stator, the frame (in the machine house) and the hub (in the rotor area) via extruded profiles. The wind turbine is equipped with a lightning protection system to protect from the effects of direct and nearby strikes. ( ) 7

11 The wind turbine generators are equipped with lightning safeguards which protect the wind turbines from the tip of the blades to the foundation. The safeguards enable the lightning current to by-pass all vital wind turbine components within the blade, nacelle and tower, limiting the potential for damage. An additional safeguard installed in each wind turbine includes a shielding system around the control units and processors that are located within the nacelle. The lightning safeguards for Project wind turbine generator are designed according to International Electrotechnical Commission (IEC) Lightning Protection Level I. ( ) 8

12 3. Acoustic Emissions Data The turbine array uses Enercon E MW and Enercon E MW wind turbines. The Enercon E-141 wind turbine generator has a maximum broadband sound power level of dba where the same turbine at 4.0MW has a maximum broadband sound power level of dba. The turbine at both MW levels has a +/- 1 dba measurement uncertainty, a tonal audibility of <2dB and a maximum tonality across the entire power range of 1dB. Further information regarding the octave band spectra can be found in Table 3-1. Table 3-1: Enercon E-141 Turbines Linear Octave Band Sound Power Levels Frequency (Hertz) 4.2MW Type of Turbine 4.0MW db db db db db db db db db db db 98.8 db db 94.6 db db 86.5 db db 67.7 db Note: The above levels were calculated based on a wind speed emission of 7.5 m/s ( ) 9

13 4. References Enercon, 2016a: Technical Description- Enercon Wind Energy Converter E-141 EP4. 1 st ed. Aurich, Germany: ENERCON GmbH, Enercon, 2016b: Data Sheet- Enercon Wind Energy Converter E-141 EP$ / 4200kW One Third Octave Operating Modes 0 s, I s, II s and Power-Reduced Operation with TES (Trailing Edge Serrations). 1 st ed. Aurich, Germany: ENERCON GmbH, Municipality of Chatham-Kent, 2014: Municipality of Chatham-Kent Official Plan. Consolidated May 20, Ontario Ministry of the Environment and Climate Change (MOECC), 2012: Ontario Regulation 359/09. Renewable Energy Approvals under Part V.0.1 of the Environmental Protection Act. Consolidated May 2, Ontario Ministry of the Environment and Climate Change (MOECC), 2013: Technical Guide to Renewable Energy Approvals. Accessed July Available: energy/technical-guide-renewable-energy-approvals. ( ) 10

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