This Meeting Tri-State is committed to an open, transparent, and - - PowerPoint PPT Presentation

This Meeting

• Tri-State is committed to an open, transparent, and

meaningful transmission planning process and welcomes input from all stakeholders.

• These efforts may be supplemented by additional

stakeholder outreach activities in connection with individual transmission projects or overall programmatic needs, as necessary.

• Final outreach meeting for 2015.
• Same information as discussed at previous Colorado

Coordinated Planning Group (CCPG) meetings.

This Meeting

• Your input will be considered and included in the

biennial transmission plans submitted to the CO PUC pursuant to Rule 3627.

• The Rule 3627 transmission plan is due February 2016.

 Alternatives proposed at this meeting may be referenced

in the 2016 filing, but will be incorporated in the 2016/2017 study cycle.

• More information:

 www.tristategt.org/TransmissionPlanning  You can also provide comments, alternatives, or submit

questions through the website.

What are Tri-State’s Transmission Planning Objectives?

• Provide Transmission Service to all network

customers.

• Provide Reliable Service under NERC/WECC

Reliability Standards.

• Provide Low Cost Service to Member owners.
• Provide Access to other stakeholders for the

efficient planning, utilization and development

• f the transmission system.

Who is Tri-State?

Founded in 1952, Tri-State is a not-for-profit, wholesale power supplier owned by 44 electric cooperatives and public power districts serving a population of approximately 1.4 million people. Tri-State's mission is to provide

• ur member systems a reliable,

cost-based supply of electricity in accordance with cooperative principles.

Tri-State Statistics

• 5,396 miles of transmission in which Tri-State has an
• wnership or capacity interest:

 1220 miles - 345 kV  1001 miles - 230 kV  184 miles - 138 kV  2942 miles - 115 kV  49 miles - 69 kV

• Over 220 Transmission Substations
• David A. Hamil DC Tie at Stegall, NE (110 MW)
• July 2015 Coincident Peak

= 2,596 MW

• TS All-Time Peak July 2014

= 2,813 MW

Transmission System

This meeting

How is Tri-State’s transmission plan developed?

• Network Customers identify load and resource

requirements annually.

• Other Transmission Providers update base case

assumptions (system topology, loads and resources).

• Tri-State Member Systems request new delivery

points throughout the year.

• Stakeholder requests, comments, and alternatives.

Transmission Plan Development (continued)

• Generation Interconnection customers submit

applications (January – February and July - August).

• Regulatory and governmental agencies introduce

policy initiatives.

• Tri-State’s Board of Directors make decisions on

capital expenditures.

Transmission Project Categories

• Under Construction
• Planned
• Conceptual

Transmission Projects: Under Construction

Burlington – Lamar 230 kV Transmission Project

Burlington – Lamar 230 kV Transmission Project

Description: Construct a 230 kV transmission line from Burlington to Lamar. Voltage: 230 kV Length: 107 miles Type: Line Status: Under Construction Planned ISD: 2020 Purpose: Reliability, improve load-serving capability, remove generation operating restrictions, and support renewable resource development in eastern Colorado. 10yr plan: 2012, 2014 (as an element of Lamar Front Range)

Burlington – Wray 230 kV Line

Burlington – Wray 230 kV Line

Description: Construct new 230 kV line from the existing Burlington Substation to the existing Wray Substation Voltage: 230 kV Length: 72 miles Type: Line Status: Under Construction Planned ISD: 2016 Purpose: Improve load-serving capability, remove generation operating restrictions and support renewable resource development in eastern Colorado. 10yr plan: 2012, 2014

Western Colorado Transmission Upgrade Project

Western Colorado Transmission Upgrade Project

Description: Upgrade existing transmission line and facilities from Montrose Substation to Cahone Substation from 115 kV operation to 230 kV. Voltage: 230 kV Length: 80 miles Type: Line Status: Under Construction Planned ISD: 2018 Purpose: Reliability – eliminate need for existing Nucla Remedial Action Scheme and replace failing structures. 10yr plan: 2014

Pueblo West Tap Line Uprate

Pueblo West Tap Line Uprate

Description: Upgrade existing 115 kV line conductor Voltage: 115 kV Length: 0.3 miles Type: Line Status: Under Construction Planned ISD: 2016 Purpose: Reliability, eliminate overloading of existing line for NERC Category B contingency 10yr plan: 2014

San Juan Basin Energy Connect Project

San Juan Basin Energy Connect Project

Description: New 230 kV transmission line between existing WAPA Shiprock Substation in New Mexico to a new 230 kV Iron Horse

• Substation. A new 230 kV Kiffen Canyon

Substation will also be required Voltage: 230 kV Length: 70 miles Type: Line Status: Under Construction Planned ISD: 2018 Purpose: Reliability for loss of Hesperus 345 kV source and to serve approximately 100 MW of new industrial load in SW Colorado 10yr plan: 2012, 2014

Southwest Weld Expansion Project

Southwest Weld Expansion Project

Description: Construct approximately 49 aggregated miles

• f 115 kV and 230 kV transmission lines with

six potential load-serving substations and/or line taps. Voltage: 115/230 kV Length: 49 miles Type: Line Status: Under Construction Planned ISD: 2018 Purpose: Load Serving 10yr plan:

Transmission Projects: Planned

Big Sandy - Calhan

Big Sandy - Calhan

Description: New 230 kV line between Big Sandy and Calhan Substations Voltage: 230 kV Length: 55 miles Type: Line Status: Planned Planned ISD: 2021 Purpose: Support Member load between Denver and Colorado Springs 10yr plan: 2012, 2014

Falcon – Midway 115 kV Line Uprate Project

Falcon – Midway 115 kV Line Uprate Project

Description: Planned uprate of existing 115 kV line between Falcon and Midway Voltage: 115 kV Length: 27miles Type: Distribution Status: Planned Planned ISD: 2019 Purpose: Increase conductor thermal rating 10yr plan: 2012, 2014

Lost Canyon – Main Switch 115 kV Project

Lost Canyon – Main Switch 115 kV

Description: New transmission line between Lost Canyon and Main Switch Voltage: 115kV Length: 20 miles Type: Line Status: Planned Planned ISD: 2018 Purpose: Increase load serving capability 10yr plan:

San Luis Valley – Poncha 230 kV Project

San Luis Valley – Poncha 230 kV Project

Description: Construct approximately 60 mile 230 kV transmission line from the San Luis Valley to Poncha 230 kV. Voltage: 230 kV Length: 60 miles Type: Line Status: Planned Planned ISD: 2022 Purpose: Reliability 10yr plan: SLV-Calumet-Comanche: 2012 Valley Corridor: 2014

Transmission Projects: Conceptual

Boone – Walsenburg 230 kV Line

Boone – Walsenburg 230 kV Line

Description: Construct a 230 kV transmission line from Boone Substation to Walsenburg Substation Voltage: 230 kV Length: 69 miles Type: Line Status: Conceptual Planned ISD: To be determined Purpose: Reliability – eliminate the need for the existing Walsenburg Remedial Action Scheme (RAS) 10yr plan: 2014

Lamar – Front Range Project

Lamar – Front Range Project

Description: Two high voltage transmission paths from Lamar Substation to Pueblo area and a second path from Lamar to substations near Brush and/or Deer Trail Voltage: 345 kV Length: 300 – 350 miles Type: Line Status: Conceptual Planned ISD: To be determined Purpose: Tri-State reliability, system load-serving connectivity as regional power provider and future resources. Xcel Senate Bill07-100 and reliability. 10yr plan: 2012, 2014

Lamar – Boone 230 kV Line

Lamar – Boone 230 kV Line

Description: Construct a 230 kV transmission line from Boone Substation to Lamar Substation Voltage: 230 kV Length: 100 miles Type: Line Status: Conceptual Planned ISD: To be determined Purpose: Accommodate potential increased resource injection at Lamar. Subset of Lamar Front Range. 10yr plan: Lamar Front Range: 2012, 2014

Impacts of the Clean Pow er Plan

• Colorado is in the early stages of formulating its plan

for complying with the Clean Power Plan (CPP).

• Tri-State is engaged with the relevant state agencies in

the development of Colorado’s compliance plan, which is due September 6, 2016.

• While Tri-State anticipates that aspects of the Colorado

CPP compliance plan may impact transmission plans, those impacts are not yet known and it is premature to include in the 2016 Plan specific transmission projects related to the CPP.

• Tri-State will continue to coordinate with stakeholders

with respect to the transmission planning implications

• f the CPP and expects to address this issue in the next

Ten-Year Plan planning cycle.

For more information

www.tristategt.org

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