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Arizona Corporation Commission 5 th Biennial Transmission Assessment Docket E-00000D-07-0376. Regional Renewable Energy Transmission Initiatives. Laurie Woodall K.R. Saline and Associates, PLC. Overview. Increasing public policy interest in renewable development

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regional renewable energy transmission initiatives

Arizona Corporation Commission

5th Biennial Transmission Assessment

Docket E-00000D-07-0376

Regional Renewable Energy Transmission Initiatives

Laurie Woodall

K.R. Saline and Associates, PLC

ACC BTA Workshop May 22-23, 2008

overview
Overview
  • Increasing public policy interest in renewable development
  • Need for more transmission in evidence
  • Specific initiatives addressing integration of renewable energy sources into system

ACC BTA Workshop May 22-23, 2008

public policy interest in renewables
Public PolicyInterest in Renewables
  • Climate change / greenhouse gas concerns
  • Regulatory requirements-renewable portfolio standards
  • Diversity of fuel sources for growing load
  • Potential for federal regulation of conventional fuel sources - “Carbon Tax”

ACC BTA Workshop May 22-23, 2008

need for transmission
Need for Transmission
  • Growing loads, transmission limitations
  • Renewables may be remotely located without access to available transmission
  • Financing of transmission can be expensive and difficult for smaller intermittent renewable generators
  • Some studies, governmental/NGO private initiatives to address these issues

ACC BTA Workshop May 22-23, 2008

westconnect planning biennial long range study
WestConnect PlanningBiennial Long Range Study
  • A Westconnect–wide long range, conceptual study of transmission improvements needed to integrate renewables in the 10th year and beyond
  • Study will include findings of NREL wind/solar integration study, Colorado Resource Energy Zones Study, New Mexico collector study, and SWAT Renewable Task Force
  • Complete initial study in 2009

ACC BTA Workshop May 22-23, 2008

other initiatives wga west wide renewable energy zones
Other InitiativesWGA West-wide Renewable Energy Zones
  • Regional initiative to identify best renewable resources and designate Renewable Energy Zones, based upon commercial potential and cost-performed by consultant
  • Inclusive stakeholder process to establish criteria to designate and validate zones for development
  • Develop conceptual transmission plans through WECC and subregional planning groups to deliver from highest ranking zones
  • Report to WGA re: commercial obstacles
  • Identify options for interstate cooperation of planning and permitting
  • Kick off meeting May 28, 2008 in Salt Lake City

ACC BTA Workshop May 22-23, 2008

california renewable energy transmission initiative reti
CaliforniaRenewable Energy Transmission Initiative (“RETI”)
  • PG&E, SCE, and SDG&E filed renewable transmission reports with CPUC in September 2007
  • RETI formed with collaborating agencies and entities: CPUC, CEC, CAISO, Utilities, and other stakeholders
  • Purpose - identify transmission necessary for California to achieve its renewable energy goals in cost-effective and environmentally sensitive manner. Final B&V report 5/16/08
  • Study area includes CA, BC,WA, NV, OR, AZ and Baja Norte
  • Phases: Identify zones, identify conceptual transmission, assist in development of detailed plans

ACC BTA Workshop May 22-23, 2008

colorado initiatives
Colorado Initiatives

Clean Energy Development Authority (“CEDA”) to develop three year plan, work with Colorado PUC & Colorado Coordinated Planning Group (“CCPG”)

SB 07-100 requires each regulated utility to:

Designate Resource Energy Zones,

Develop needed transmission plans,

Encourage locally owned renewables, and

Submit plans and CPCN applications

Utilities working with CCPG in phases:

April-July transmission planning groups,

November issue study plans,

Nov-Jan 09 prepare CPCN studies,

March 09 file CPCN applications,

Oct 09 file transmission plans

ACC BTA Workshop May 22-23, 2008

colorado resource energy zones
Colorado Resource Energy Zones

ACC BTA Workshop May 22-23, 2008

nevada s initiative retaac renewable energy transmission access authority
Nevada’s Initiative (“RETAAC”)Renewable Energy Transmission Access Authority
  • Created by Executive Order of the Governor
  • RPS - Nevada is a net importer
  • Purpose:
    • Identify and rank commercially developable locations for renewable energy
    • Assess existing and planned transmission access to these resources
    • Make recommendations for additional transmission
  • Phase 1 Report identified REZ, transmission required for access to grid, recommended transmission lines
  • Future phases will include more detailed environmental review

ACC BTA Workshop May 22-23, 2008

nevada retaac plan
NevadaRETAACPlan
  • Circles/Ovals Identify Renewable Energy Zones
  • Conceptual Transmission Plan Shown By Brown / Purple Lines

Per NPC/SPPC 5/19/08 SWAT presentation

ACC BTA Workshop May 22-23, 2008

new mexico s initiatives
New Mexico’s Initiatives
  • SWAT New Mexico Study Group performed 2007 Cluster Study of Potential Wind Projects in Central NM
  • 2007 Legislature created the New Mexico Renewable Energy Transmission Authority (RETA)
  • RETA’s Purpose:
    • Orchestrate multistate, multi-electric utility negotiations to facilitate development of NM transmission infrastructure for renewable energy development and export
    • Focus is on electric system transmission infrastructure planning, financing, and implementation
    • A onetime only $1 million general startup fund authorized
  • 2008 SWAT Renewable Task Force Study Participant

ACC BTA Workshop May 22-23, 2008

nm wind collector system integrated with hpx
NM Wind Collector System Integrated with HPX
  • Conceptual 345 kV Collector System in Central NM
  • Cluster Study performed by PNM
  • Per 2007 SWAT NM Study Group

ACC BTA Workshop May 22-23, 2008

sources
Sources
  • Nevada RETAAC: http://gov.state.nv.us/Energy/FinalReport.htm
  • National Renewable Energy Lab Resource Center http://www.nrel.gov/renewable_resources/
  • New Mexico Renewable Energy Transmission Authority: http://www.emnrd.state.nm.us/MAIN/RETA2.htm
  • US Dept of Energy Efficiency and Renewable Energy: http://www.eere.energy.gov/
  • WestConnect: http://www.westconnect.com/
  • AZ Climate Change: http://www.azclimatechange.gov/index.html
  • California RETI: http://www.energy.ca.gov/reti/index.html
  • Colorado: http://www.colorado.gov/energy/utilities/clean-energy-development-authority.asp
  • WGA: http://www.westgov.org/wga/initiatives/wrez/index.htm
  • Clean Electric Resource Strategy: http://www.westernresourceadvocates.org/media/pdf/Clean%20Electric%20Energy%20Strategy%20for%20Arizona.pdf

ACC BTA Workshop May 22-23, 2008

sources continued
Sources (Continued)
  • TRANSMISSION RANKING COST REPORT OF SAN DIEGO GAS & ELECTRIC COMPANY (U 902 E) FOR RENEWABLE PORTFOLIO STANDARD PROCUREMENT: http://www.sdge.com/regulatory/tariff/svc%20TRCR%20Filing.pdf
  • TRANSMISSION RANKING COST REPORT OF PACIFIC GAS AND ELECTRIC (U 902 E) FOR RENEWABLE PORTFOLIO STANDARD PROCUREMENT: http://www.pge.com/includes/docs/pdfs/b2b/energysupply/wholesaleelectricsuppliersolicitation/renewableportfoliostdsori-ii_other-doc_pge_20070907-01.pdf
  • TRANSMISSION RANKING COST REPORT OF EDISON ELECTRIC COMPANY (U 902 E) FOR RENEWABLE PORTFOLIO STANDARD PROCUREMENT: http://www.sce.com/nrc/rfp/2008_RPS_Appendix_D_SCE_TRCR.pdf

ACC BTA Workshop May 22-23, 2008

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