Date post: | 31-Dec-2015 |
Category: |
Documents |
Upload: | leon-mcbride |
View: | 214 times |
Download: | 0 times |
WestConnect Activities
Charles ReinholdWestConnect Project Manager
2008 ACC BTA Workshop
Phoenix, AZ
May 22, 2008
ACC BTA Workshop May 22, 2008
WestConnect Organization
• A Group of Transmission Owners in the Western Grid
• Organized under a Memorandum of Understanding
• Purposes:– Continue investigation of feasibility of cost-effective
wholesale market enhancements– Work cooperatively with other Western Grid
Organizations and market participants– Address seams issues in appropriate forums
2
WestConnect
Arizona Public Service
El Paso Electric
Imperial Irrigation District
Nevada Power Company
Public Service Colorado
Public Service New Mexico
Sacramento Municipal Utility District
Salt River Project
Sierra Pacific Power Company
TOTALS Jan. 2007
46,000 MW of Load
34,000 Miles of Transmission Line
7.0 Million Retail Customers Served
Southwest Transmission Cooperative
Transmission Agency of Northern California
Tri-State G & T Association
Tucson Electric Power
Western Area Power Administration- Rocky Mountain Region
- Desert Southwest Region-Sierra Nevada Region-CRSP Management Office
ACC BTA Workshop May 22, 2008
3
ACC BTA Workshop May 22, 2008
Market Enhancement Initiatives Active Work Groups
• Regional Pricing Experiment
• Virtual Control Area
• Transmission Products (Conditional Firm)
• TTC/ATC Process
• Flow Based Market Initiatives
• Regional Transmission Planning5
ACC BTA Workshop May 22, 2008
Regional Pricing Experiment
• Developed a proposed two-year experiment to eliminate rate pancaking for hourly non-firm transactions
• Preparing FERC filing package for submittal June 1 or shortly after
• Experiment to begin in early 2009
6
ACC BTA Workshop May 22, 2008
Virtual Control Area Activities
• Joining NTTG Ace Diversity Interchange (ADI) Program – Q3 2008
• Western Wind & Solar Integration Study conducted by NREL to determine additional regulation enhancements
• Contingency reserve sharing analysis7
Virtual Control Area ActivitiesADI
• ADI is the pooling of individual Area Control Errors (ACE) to take advantage of control area diversity
• By pooling ACE, participants will likely be able to:– Reduce control burden on individual control areas;– Reduce unnecessary generator control movement;– Reduce sensitivity to resources with potentially
volatile output, such as wind projects, and,– Realize improvements in Control Performa.nce
Standards
8
ACC BTA Workshop May 22, 2008
Virtual Control Area ActivitiesADI
• Hosted on British Columbia Transmission Corp EMS System
• Some WestConnect BAs have executed contract documents to join the program:APS NPC PNM
PSCO SPPC SRP9
ACC BTA Workshop May 22, 2008
Virtual Control Area ActivitiesADI
• Projected Operation Date:
July 1, 2008
• Additional WestConnect BAs considering participation
• See: http://www.nationalwind.org/pdf/OpatrnyADI_FtCollins_091907.pdf
• for more detail on ADI operations 10
Virtual Control Area ActivitiesContingency Reserves
• Two existing reserve sharing groups in WestConnect footprint– Southern Reserve Sharing Group– Rocky Mountain Reserve Sharing Group
• Sharing between the groups historically limited by transfer capability
• Analysis of current potential under consideration
11
ACC BTA Workshop May 22, 2008
Transmission Products
• Developed regional business practices for conditional firm transmission service
• Early stages of assessment of potential for standardization of planning redispatch practices
12
ACC BTA Workshop May 22, 2008
TTC/ATC Process
• Annual workshop held May 21, 2008
• Continuing efforts to make information available and responsive to stakeholders’ needs
13
14
WestConnect Subregional Planning Groups
ColoradoCoordinated
PlanningGroup
SouthwestArea
Transmission
CCPGCCPG
SWATSWAT
SIERRASIERRANew Area ?
CCPG and SWAT act as WestConnect technical planning work groups for WestConnect planning area
•Coordinate Base Cases for use by all study participants
•Define subregional study plans, provide study resources, and perform studies
•Provide forum for coordination and peer review of planning studies and 10-year plans
ACC BTA Workshop May 22, 2008
Jun Jul Aug Sep Oct Nov DecJan Feb Mar Apr MaySep Oct Nov Dec Jan Feb Mar Apr
Database Preparation
Request WindowStudy Plan Development
Study Execution
Analysis
Report PreparationReport Approvals
Historical Data Analysis
2007 2008 2009
2008 Synchronized Study Plan
TEPPC
WESTCONNECT
BASE CASE 2013 & 2018
EXHIBIT 5
EXHIBIT 9
EXHIBIT 10
EXHIBIT 12
EXIHIBIT 13
NREL STUDY
SCWG
SUBREGIONAL PLANING GROUPS
NREL
SCWG
CRT
AZNM
CCPG
SPPG
SATS
ADEQUACY STUDY
BIENNIAL L. R. STUDY
CATS-EHV
CATS-HV
TO BE DETERMINED
NM STUDY GRP
Request Window
Report Preparation
EXHIBIT 4
Annual Adequacy Study • Purpose – test the adequacy of most recently published
WestConnect Transmission Plan (excluding conceptual projects)
• A WestConnect-wide study utilizing the 5th and 10th year coordinated base cases
• Perform traditional N-0, N-1 and N-2 contingency outages
• Establish reliability risk of potential corridor outages with planned transmission projects in 10th year
• Complete studies by August joint CCPG/SWAT meeting
• Deficiencies in plan noted with sufficient lead time for subregional planning participants to investigate solutions for inclusion in the 2008 WestConnect Transmission Plan
17
Biennial Long Range Study
• Purpose – Biennially explore conceptual long range transmission needs within WestConnect Planning Area.
• A Westconnect –wide study of contemporary issues facing the industry in the 10th year and beyond.
• Utilizes the 10th year coordinated base case with load forecasts and generation scenarios representative of the study time period. Study limited to power flow and only considers N-1 outages.
• Initial study has two fold objective:– Provide traditional transmission reliability oriented studies in
response to the TEPPC economic transmission study results,
– Study WestConnect-wide integration of renewable energy projects
• Complete initial study in 2009
18
Planned Projects by State
StateNo.
ProjectsTotal
MilesEstimated Cost
(2008 $M)
Arizona 66 1,403 2,331
California 10 759 1,593
Colorado 16 1,892 2,016
Nevada 5 415 864
New Mex. 4 117 141
Texas 5 50 24
Multi-State 0 0 0
TOTAL 106 4,636 $ 6,969
19
Conceptual Projects by State
StateNo.
ProjectsTotal
MilesEstimated Cost
(2008 $M)
Arizona 15 286 185
California 1 18 27
Colorado 0 0 0
Nevada 1 31 70
New Mex. 2 71 122
Texas 0 0 0
Multi-State 3 3,850 5,800
TOTAL 22 4,256 $ 6,204
ACC BTA Workshop May 22, 2008
Contacts and Information
• WestConnect (www.westconnect.com)• Charles Reinhold – Project Manager
• [email protected]• 208-253-6916
20