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Advisory Working Groups Advisory Working Groups

Advisory Working Groups - PowerPoint Presentation

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Advisory Working Groups - PPT Presentation

Advisory Working Groups Town of Dover December 16 2014 Agenda Introductions Recap About Advisory Working Groups AWG Project Overview amp Update AWG Recap Tonights topics Project Benefits short and long term ID: 769194

transmission construction valley project construction transmission project valley line areas cve con recap edison design awg energy cables restoration

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Advisory Working Groups Town of DoverDecember 16, 2014

Agenda IntroductionsRecapAbout Advisory Working Groups (AWG)Project Overview & UpdateAWG Recap Tonight’s topics Project Benefits (short and long term) Design FactorsPlanning for next AWG 2

Tonight’s Speakers Bob De Meyere – Cricket Valley Energy (CVE)Project Manager – Cricket Valley Energy Center David Klinch – Epsilon Associates, Inc. Project environmental consultant Nora Madonick – Arch Street Communications Public information and outreach 3

What is an Advisory Working Group (AWG)? Informal, unofficial opportunities for the public and project experts to share information and ideasNot required by the public process – additional outreach by Cricket Valley Energy – comments are not part of the official public record No specialized knowledge is needed – technical information will be presented in plain language If you are attending as a member of an organization, please share what you learn tonight with your members Announced via website, postcards, email blast, calendar listing, posters, advertising, posting on town websites 4

AWGs are self-determined. The group:Chose the topics for tonight’s meetingRequested use of microphones as neededRequested longer question/answer period All meeting materials will be posted on the web following tonight’s meeting Please visit cricketvalleytransmission.com for updates and to sign up for email notifications 5

Recap: Project Overview Cricket Valley Energy is a 1000 MW energy generation facility in Dover, NYFully approved and permitted Completed State Environmental Quality Review (SEQR) process Restoration of abandoned industrial site 6

Recap: New York Independent System Operator Requirement CVE has been required by NYISO to increase transmission/transfer capacity, redundancy, and operational capacities by:Funding and installing 14.6-mile transmission line in existing right-of-way between CVE in Dover and Con Edison substation in Pleasant Valley Reconductoring 3.4-mile segment of existing line between CVE substation and the NY/CT border Upgrading Pleasant Valley substation (within existing footprint) security/communication infrastructure 7 NOT part of any of the following transmission line projects: NY Transco Edic to Pleasant Valley; NEXTERA New Scotland to Pleasant Valley; North American Transmission; or Boundless Energy Transmission

Project Status 8

AWG Recap (October meeting)Visual ImpactThe CVE team identified an option to reduce the proposed pole height by as much as 40 ft by using H-frame poles, replacing monopoles in certain key locations, and modifying the original design of the monopolesDesign changes have been submitted for approval to Con Edison Underground Construction Based on the significant environmental and other potential impacts, the underground option failed to satisfy the project design requirements set forth by Con Edison and NYISO 9

AWG Recap (October meeting)Noise Restrictions will be in place to limit noise-producing construction activity to standard daylight working hoursShort intervals of work along the right-of-way over a total schedule of 24 months Standard construction equipment, such as drill rigs, rough terrain cranes, cable pulling rigs Helicopters (heavy lift and light duty) Trucks to deliver materials, bring workers to and from active construction areas 10

AWG Recap (October meeting)SafetySafety is our highest priorityCVE will address all considerations in order to meet safety standards, including: construction, monopoles, and operations Clearances: vegetation and trees, if not properly maintained, can be a source of outages Aviation: structure heights, locations, and lighting in accordance with FAA requirements will ensure safe operation of the transmission line in Sky Acres Airport area 11

Benefits (Short & Long Term) Tonight we will cover:Labor and workforceSourcing local businessLow impact design Restoration of impacted areas 12

Labor and Workforce 13Direct and indirect positive impacts to regional economy of over $1 billion over 20 years Power Plant Up to 750 direct construction jobs – averaging around 300 per year for the estimated 3 year construction period (Approx. $147 million) More than 1500 indirect, and induced jobs56 direct, indirect, and induced jobs supporting operations (post construction phase) Transmission Line 60 to 80 direct construction jobs Up to 80 additional Indirect and induced jobs in support of project

Sourcing Local Business 14Indirect and induced employmentLocal purchases during construction Materials and services For construction work force (meals, fuel, incidentals, lodging, etc.) Local services to support construction and operationSky Acres Airport and other sites to support construction Tax Revenue to State, County, Towns, and School district

Low Impact Design15Minimal footprint Proposed transmission line will be constructed entirely within the existing right-of-way Existing Con Edison right-of-way is presently more than 90% free of tree growth For safety and reliability, some trees along the southern edge of the right-of-way will be cleared in accordance with industry standard safety requirements ( less than 8% of the total right-of-way area) Construction to be limited Pole locations – 4-5 per mile

Low Impact Design (continued)16Construction measures Protective measures such as hay bale and silt fence barriers between the resource areas and work areas to prevent inadvertent impacts to wetlands and streams H ighly-trained construction monitors to oversee work; including particular attention to sensitive areas to prevent any damage to wetlands and streams along the right-of-wayProtection of threatened and endangered species habitats per DEC approval Physical avoidance, time of year restrictions Use of rock anchors in most locations Selective use of helicopters to set poles

Restoration of Impacted Areas 17Wetland restoration plan and remediation at CVE site in Dover Transmission line – restoration of work areas Natural buffers Landscaping to screen the Pleasant Valley substation, along Rt. 44 Natural tree buffer at CVE site in Dover

Questions 18

Design Factors Tonight we will cover:Revised pole heightsInsulated cables Ice and wind loads that can affect the line 19

Revised Pole Heights Reviewed technical requirementsNational Electric Safety Code (NESC)Con EdisonNew York State Department of Public Service (DPS) 20

Revised Pole Heights Key ConsiderationsCon Edison phase-to-phase electrical clearance: 15 ft. minimum (displaced conductors)Con Edison phase-to-ground electrical clearance: 9 ft. minimum (displaced conductors)35 foot electrical clearance to ground under maximum operating temperature of 180ºC (356ºF)EMF requirements Distance to ground for EMF analysis: determined under winter normal temperature of 95ºC (203ºF) For example: the span between CV-07 to CV-08 is 44 ft EMF: Electric field < 1.6kV/m at edge of right-of-wayEMF: Magnetic field < 200 mG at edge of right-of-way 21

Why not use insulated cables? Technically impractical for overhead high voltage transmission linesInsulated cables would be 8 -10 inches in diameter changing the weight from 2.5 lbs/ft to 44.7 lbs/ftWould require 3 cables for each phase – 9 cables totalRequires cable bridge supports, abutments and additional wires to support the cable More massive and intrusive than overhead bare cables 22

What are the ice and wind loads? Designs exceed NESC Code minimums100-year wind loading of 25 psf wind pressure (100 mph) wind 100-year ice loading of 1” radial ice with a concurrent 8 psf (56 mph) windUnbalanced ½ inch ice 23

Questions 24

Topics for our next Advisory Working Group 25