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SWAT New Mexico Subgroup

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Increased generation in southern New Mexico ... Study Scope: 'New Mexico Wind Transmission Expansion for Wind Generation' (October 2006) ... – PowerPoint PPT presentation

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Title: SWAT New Mexico Subgroup


1
SWAT New Mexico Subgroup
  • Subgroup Studies
  • Regional Studies
  • NM IRP

SWAT Oversight Committee May 15-16 2007,
Albuquerque, NM
2
Current Studies
  • Path 47/48 Upgrades
  • Wind Transmission Expansion
  • Central NM Transmission Expansion

3
Path 47/48 Upgrade
  • Evaluate options to enhance Path 48 import
    capability
  • Explore sensitivity to
  • Increased generation in southern New Mexico
  • PNM Path 48 transmission expansion plan (OJ East
    project)
  • Study Scope New Mexico Transmission Expansion
    Alternatives

4
SNM Generation
  • Recent SNM Generation
  • 570 MW LEF CC
  • 232 MW Afton CC
  • 160 MW Pyramid CT
  • 80 MW Lordsburg CT
  • 1080 MW total

5
Study Options
  • Option 1 Bypass existing Arroyo PST
  • Option 2 Schedule Arroyo PST northbound
  • 200 MW, 400 MW schedule
  • Option 3 - Tie existing SpringervilleLuna (VL)
    and West MesaArroyo (EP) 345 kV lines
  • With and without series compensation
  • Option 4 Add a PST to Option 3 to schedule flow
    northbound
  • 200 MW, 400 MW schedule

6
Preliminary ResultsSNM Import 0 MW
7
Preliminary ResultsSNM Import 300 MW
8
Preliminary Observations
  • Option 3 and 4 look promising
  • Further evaluation needed for attractive options
  • Path 47 and underlying system impacts
  • Transmission opportunities (e.g., development of
    345/115 kV sources in central NM)
  • ROW, permitting issues
  • Cost-benefit analysis
  • Drivers?

9
NM Transmission Expansion Options for Wind
Generation
10
Objectives
  • Evaluate transmission expansion scenarios to
    harness up to 3000 MW of wind generation in
    Eastern NM
  • Study Scope New Mexico Wind Transmission
    Expansion for Wind Generation (October 2006)

11
TSGT 1320 MW total PNM 1457 MW total LGIA 455
MW Feasibility 500 MW Sys. Imp. 400
MW Facility 102 MW EPE 500 MW total Grand
Total 3,277 MW
12
Wind Generation Scenarios
  • Study Plan
  • Reality

13
Transmission Options
14
Regional Studies
  • High Plains Express
  • SunZia
  • How do we bridge study gap?

15
New Mexico IRP
  • IRP Rule Effective 3/30/07
  • Gas and Electric
  • Considerations include
  • Load Forecasts
  • Supply and demand-side resources, renewable, PPA
    resources, other
  • Resource Needs
  • Identification of Options (Cost, Attributes)
  • Modeling and risk assumptions
  • Development of optimal resource portfolio
  • Transmission
  • Energy Efficiency
  • Filing subject to NMPRC processes.
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