wind turbine specifications report - Capital Power Corporation

PORT DOVER AND NANTICOKE WIND PROJECT WIND TURBINE SPECIFICATIONS REPORT

File No. 160960584 March 2011

Prepared for: Capital Power L.P. 200 University Avenue, Suite 1301 Toronto, ON M5H 3C6

Prepared by: Stantec Consulting Ltd. Suite 1 - 70 Southgate Drive Guelph ON N1G 4P5


Table of Contents 1.0 INTRODUCTION ..............................................................................................................1.1 1.1 PROJECT OVERVIEW .....................................................................................................1.1 1.2 REPORT REQUIREMENTS .............................................................................................1.2 2.0 TECHNICAL SPECIFICATIONS.......................................................................................2.1 2.1 VESTAS V90-1.8MW WIND TURBINE .............................................................................2.1 2.2 ACOUSTIC EMISSIONS DATA ........................................................................................2.2 3.0 CLOSURE ........................................................................................................................3.1

List of Tables

Table 2.1: Basic Wind Turbine Specifications ..........................................................................2.1

List of Appendices

Appendix A Vestas General Specification Brochure

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1.0 Introduction

1.1

PROJECT OVERVIEW

Capital Power GP Holdings Inc., in its capacity as General Partner of Capital Power L.P. (Capital Power), is proposing to develop, construct, and operate the 104.4 megawatt (MW) Port Dover and Nanticoke Wind Project (the Project) in the Counties of Norfolk and Haldimand (the Counties), Ontario, in response to the Government of Ontario’s initiative to promote the development of renewable electricity in the province. The Project Study Area is bordered on the north by Highway 3 and Concession 6, on the west by Cockshutt Road, on the east by Kohler Road, and on the south by Lake Erie. The proposed Project Location for this report includes all parts of the land in, on or over which the Project is proposed. The basic components of the Project include 58 Vestas model V90-1.8 MW wind turbine generators with a total installed nameplate capacity of 104.4 MW, a 34.5 kilovolt (kV) underground and overhead electrical power line collector system, fibre optic data lines from each turbine, a substation, an operation and maintenance building, a stormwater management pond, a meteorological tower (met tower) and associated underground power and data cabling, and turbine access roads with culvert installations at associated watercourse crossings. Temporary components during construction include staging areas at the turbine locations, crane pads or mats, staging areas along access roads, delivery truck turnaround areas, a central laydown area, access route to the met tower site, and crane paths and associated watercourse crossings. The electrical power line collector system would transport the electricity generated from each turbine to the substation, located adjacent to an existing Hydro One Networks Inc. 230 kV transmission line. Capital Power has elected to assess and seek approval for some alternative Project configurations. The Renewable Energy Approval (REA) application considers 60 potential turbine sites (58 preferred turbine locations with two alternate sites), three potential met tower locations (three possible locations for one met tower), and several alternate access road alignments. Final selection of sites to be used would be based on the results of the consultations, detailed design and engineering work, as well as the conditions experienced during construction. Capital Power retained Stantec Consulting Ltd. (Stantec) to prepare the REA application with input from AMEC Americas Limited, Archaeological Research Associates Ltd., and Zephyr North Canada. The REA application is a requirement under Ontario Regulation 359/09 Renewable Energy Approvals under Part V.0.1 of the Act of the Environmental Protection Act (O.Reg.359/09). According to subsection 6.(3) of O.Reg. 359/09, the Project is classified as a


1.1

PORT DOVER AND NANTICOKE WIND PROJECT WIND TURBINE SPECIFICATIONS REPORT Introduction March 2011

Class 4 Wind Facility and will follow the requirements identified in O.Reg.359/09 for such a facility. This Wind Turbine Specifications Report has been prepared in accordance with O. Reg. 359/09, and is one component of the REA application for the Project.

1.2

REPORT REQUIREMENTS

The purpose of the Wind Turbine Specifications Report is to provide specific technical information regarding the wind turbines proposed to be used for the Project. The Wind Turbine Specifications Report has been prepared in accordance with Item 13, Table 1 of O.Reg.359/09 which sets out specific content requirements for the Report as provided in the Ministry of the Environment’s (MOE’s) Checklist for Requirements under O.Reg.359/09, which has been included as a supplement to the REA application for the Project.

1.2



2.0 Technical Specifications

2.1

VESTAS V90-1.8MW WIND TURBINE

The Project includes 58 Vestas V90-1.8 MW wind turbines. A summary of the basic specifications of the turbine model is provided in Table 2.1 below. A complete description of the general specifications for this turbine model is found in the manufacturer’s brochure provided as Appendix A. Table 2.1:

Basic Wind Turbine Specifications

Make Model Name plate capacity (MW) Hub height above grade* Blade length Full blade diameter Blade sweep area Rotational Speed Frequency spectrum Sound power**

Vestas V90-1.8 1.8 MW 95 m 44 m 90 m 2 6,362 m 9.3-16.6 rpm 60 Hz 4 m/s – 95.4 dBA 5 m/s – 100.2 dBA 6 m/s – 102.6 dBA 7 m/s – 103.5 dBA >8 m/s – 103.5 dBA

*The hub heights listed include a distance from the foundation section to the ground level of approximately 0.6 m depending on the thickness of the bottom flange and a distance from the tower top flange to the centre of the hub of 1.70 m. **10 m above ground, noise mode 0, wind shear 0.16, hub height 95 m air density 1,225 kg/m 3

Each wind turbine consists of eight key components: concrete tower foundation; four steel tower sections; nacelle (comprised of gearbox, electrical generator, step-up transformer and housing); three rotor blades; hub (the structure to where the blades attach); power convertor; and electrical wiring and grounding. The tower would be supported by a concrete foundation, approximately 3 m deep, depending upon subsurface conditions. The turbine tower consists of tubular towers with flange connections. The tower heights for the Vestas V90-1.8 MW turbine are available in heights of either 80 or 95 m. The Project would use the 95 m hub height tower.


2.1

PORT DOVER AND NANTICOKE WIND PROJECT WIND TURBINE SPECIFICATIONS REPORT Technical Specifications March 2011

The tower supports the nacelle which houses the main components of the wind turbine (comprised of gearbox, electrical generator, step-up transformer and housing). The nacelle cover is made of fibreglass and is accessible via a hatch in the floor. Wind sensors and skylights are located on the roof of the nacelle with access to the nacelle roof via the skylights. A step-up transformer, located in a separate locked room in the nacelle of each wind turbine, is required to transform the electricity created in the nacelle to a standard operating power line voltage (i.e. 690 V to 34.5 kV). The converter is also located within the nacelle and controls the energy conversion in the generator by feeding power to and from the grid. The Vestas V90-1.8 MW turbine uses unique features such as OptiTip® and OptiSpeed™ which allow the rotor to maintain output at or near rated power by operating at variable speeds. The 90 m rotor supports three blades and a hub. Each blade is constructed of two carbon and fibreglass airfoil shells bonded to a supporting beam. The blades are 44 m in length. The pitch of the blades is adjustable, allowing maximum energy input from the wind and also acting as a braking system. Electrical wiring includes a high voltage cable which runs down the turbine tower to the 34.5 kV switchgear located at the bottom of the tower. From the switchgear, underground 34.5 kV collector lines would carry the electricity from the turbines to an overhead 34.5 kV collector line system on wood poles in the municipal road allowance. Turbine tower lighting would be in accordance with Transport Canada Regulations and Standards as described in the Design and Operations Report.

2.2

ACOUSTIC EMISSIONS DATA

The Vestas V90-1.8MW wind turbine will generate a maximum overall sound power rating of 103.5 dBA. Information regarding frequency and sound power level is provided in Table 2.1. Additional information regarding the acoustic emissions of the turbine is available in the Noise Assessment Report, provided as an appendix to the Design and Operations Report.

2.2



3.0

Closure

This Wind Turbine Specifications Report for the Port Dover and Nanticoke Wind Project has been prepared by Stantec for Capital Power in accordance with Item 13, Table 1 of Ontario Regulation 359/09. This report has been prepared by Stantec for the sole benefit of Capital Power, and may not be used by any third party without the express written consent of Capital Power. The data presented in this report are in accordance with Stantec’s understanding of the Project as it was presented at the time of reporting.

STANTEC CONSULTING LTD.

David Wesenger, BES Senior Project Manager

Kara Hearne, B.Sc. Hons. Project Manager