1

Colorado Coordinated Planning Group

PCC UpdateMarch 6-7, 2008

PCC Presentation 2

CCPG

The CCPG is a forum to bring reliability study ideas for joint study purposes. Website: www.westconnect.com Alternate: www.ccpg.basinelectric.com

PCC Presentation 3

Map

ColoradoCoordinated

PlanningGroup

SouthwestArea

Transmission

CCPGCCPG

SWATSWAT

SIERRASIERRANew Area

PCC Presentation 4

Transmission Participants Arkansas River Power Authority Aquila Basin Electric Black Hills Power Colorado Springs Utilities Pacificorp Platte River Power Authority Public Service Company of Colorado Tri-State Generation & Transmission Western Area Power Administration

PCC Presentation 5

2008 GOALSEstablish CharterSubcommittee Formation StudiesData CoordinationSchedule Synchronization

PCC Presentation 6

08 Goals - Charter Subgroup Organization

Re-Name Subgroup? Formalize Structure

Defined Responsibilities Voting Rights Stakeholder Processes (“Attendees” vs. “Participants”) Formal Agreements?

Subcommittee Organization Existing

Long-Range, NERC Compliance, Foothills, Voltage Coordination New:

Additional Sub-Sub-Regions (Denver-metro, SECO, SWCO,WY, etc.) Area Coordination 890 Issues WECC Liaison (TEPPC)

890 Compliance

PCC Presentation 7

08 Goals - Subcommittees Existing:

Long Range Transmission Planning NERC Compliance Foothills (Sub-subregion) Voltage Coordination Rocky Mountain Area Coordinator

NEW: Additional Sub-subregions: e.g. Wyoming, Denver-metro,

SECO, SWCO, etc. SB100 890 Base Case Coordination

PCC Presentation 8

08 Goals - Studies

Long Range Transmission PlanningNERC ComplianceSenate Bill 100Sub-subregionsMega Projects

PCC Presentation 9

Long Range Planning Study

SC: Long Range Transmission Planning GroupPurpose:

Develop 10 Year Transmission Plans (2018 Models) Consider RPS & up to 30% Renewable Re-evaluate the Eastern Plains Transmission Project

Lead:TSGTKicked off December 19, 2007

PCC Presentation 10

NERC Compliance Study

SC: NERCPurpose:

Meet TPL-001,2,3,4 Requirements Near (5 yr) & Far (10yr) Windows Consider RPS & up to 30% Renewable

Lead:BEPC

PCC Presentation 11

SB100 StudySC: SB100Purpose:

Meet requirements of Colorado Senate Bill 100 Identify “Energy Resource Zones” Plan Transmission to Serve the ERZ’s File CPCN’s with CPUC

Lead:PSCo Kicked off March 4, 2008 2015 Models (Correspond to PSCo Resource Plan)

PCC Presentation 12

Sub-subregion StudiesSC: VariousPurpose:

Analyze transmission requirements for specific regions within the CCPG FootprintFoothills, Tot 3, Wyoming Joint Q, Denver-Metro, SECO,

SWCO, Front Range, etc

Lead:Various

PCC Presentation 13

Mega-Project StudiesSC: VariousPurpose:

Evaluate impacts of mega-projects on CCPG Subregion:High Plains ExpressWyoming – Colorado IntertieEPTP

Lead:Various

PCC Presentation 14

08 Goals - Area Coordination

SC: WECCPurpose:

Address Issues associated with preparation of cases for WECC Annual Study Program

Rocky Mountain Area Coordinator

Lead:PSCo

PCC Presentation 15

08 Goals - Synchronization

WestConnectSWATWECC (TEPPC)890 Requirements

PCC Presentation 16

NextNext CCPG meeting

March 25, 2008 TSGT

Contact Thomas Green 303-571-7223 thomas.green@xcelenergy.com

Or Jared Griffiths (Co-chair) Phone 970-461-7603 Email jgriffit@wapa.gov

PCC Presentation 17

2008 CCPG Study Plan Kicked Off the next Colorado Long-Range Transmission

Planning Group study effort on December 19, 2007

Will look at updated L&R’s for 2018 and 2013

Take into Account State Renewable Portfolio Standards

Address Some of the Renewable Resource Generation Development Areas Outlined in the Senate Bill 07-091 Report

Complete Initial Feasibility Study Report for the High Plains Express Project

Re-structure the CCPG Charter