Transmission Coordination
and Planning Committee
2014 Q1 Stakeholder
Meeting
March 26, 2014
Agenda
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Introductions
Background
Transmission Planning Process
2014 TCPC Study Scope
Stakeholder Input and Questions
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Energy Delivery 101
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Meeting Objectives
• Plan the expansion of the transmission system to ensure
reliable, efficient delivery of energy to customers at a
reasonable cost.
• Develop and coordinate plans with interested stakeholders at
the local, state, and regional level to identify and address
concerns in the early stages of project development.
• Ensure openness and transparency while addressing
applicable regulatory requirements.
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Transmission Planning
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What is Transmission Planning?
The process of evaluating the transmission
system to identify transmission facilities required
to deliver existing and future generating
resources to existing and future customer loads
while balancing reliability, societal impact and
cost.
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Types of Planning Studies
• System Interconnection Requests
o Generator, Load or Transmission Interconnection
• Feasibility Study
• System Impact Study
• Facilities Study
• Transmission Service Study
• Reliability Study
• Economic Study
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Transmission Planning Process
Major factors in the process:
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Future planning periods (5, 10, 20+ years)
Load forecasts (existing + future growth scenarios)
Generation output (serve local load vs. off-system sales)
Generation types (thermal, hydro, wind, solar, etc.)
Planned projects (local and regional)
System disturbances (consider all relevant outages)
Reliability criteria (the measuring stick for adequate
transmission system performance)
• Transmission system commitments (capacity availability)
• Local, state, and federal regulatory requirements
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Transmission Planning Groups
Transmission Coordination & Planning Committee (local)
ohttp://www.oasis.oati.com/CLPT/index.html
oSelect “Transmission Planning” folder
Colorado Coordinated Planning Group (sub-regional)
owww.westconnect.com/planning_ccpg.php
WestConnect (regional)
owww.westconnect.com/planning.php
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Transmission Planning Process
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Multi-Year Transmission Plan
PROJECT
ESTIMATED
ISD
STATUS
South Cheyenne 115 kV Substation
2014
Planned
North Range 115 kV Substation
2013
In-Service
North Range 115 kV Transmission Line
2013
In-Service
Corlett-South Cheyenne 115 kV Line
2014
Planned
Swan Ranch 115 kV Substation
2014
Planned
North Range-Swan Ranch-South Cheyenne 115 kV
Circuit
2014
Planned
Cheyenne Prairie Generation Interconnection
2014
Planned
Data Center 115 kV Substation and Transmission
2015
Planned
Second South Cheyenne 230/115 kV Transformer
2015
Planned
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CLFP Transmission Plan
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2014 Study Scope: 5 and 10-Year Scenarios
• 2019 Heavy Winter Load
o Power flow, transient stability, voltage stability
• 2019 Light Winter Load
o High Renewable Generation Output
o Power flow, transient stability, voltage stability
• 2025 Heavy Summer Load
o Power flow (transient stability as needed)
• 10-year off-peak case undecided at this time
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Data Collection
• Requested data due: Friday April 11, 2014
• Peak and Off-Peak Load Data by POD
o Monthly demand data for study years is critical
o Monthly demand for 10 year planning horizon is
preferred
• Resource Data
o Demand requirement + reserves
• Reservation Data
o Forecasted monthly transfer values on a per path basis,
including rollover rights
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Requesting Scenarios and Alternatives
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Use CCPG Request Form at any time
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Ensures all stakeholder suggestions are considered
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Form will be submitted to CCPG and directed to the
appropriate group
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All requests will be acknowledged and responded to
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www.westconnect.com/filestorage/ccpg_request_for
m.xls
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Next Meetings
• Q2 Meeting: May 15, 2014 2:30-3:30 p.m.
o Review stakeholder comments following Q1 meeting, submitted
data, planned project status, other regional planning updates
• Q3 Meeting: August 21, 2014 9:30-11:00 a.m.
o Review stakeholder comments following Q2 meeting, study results,
identified solutions and alternatives, planned project status, other
regional planning updates
• Q4 Meeting: November 20, 2014 9:30-11:00 a.m.
o Review final comments to draft LTP report, preferred project
alternatives, planned project status, other regional planning updates
• Additional stakeholder discussions may be held as necessary
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Questions?
Wes Wingen, PE
Manager of Transmission Planning
wes.wingen@blackhillscorp.com
(605) 721-2268
Dan Baye
Transmission Planning Engineer
daniel.baye@blackhillscorp.com
(605) 721-2471
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List of Acronyms
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CCPG = Colorado Coordinated Planning Group
CPCN= Certificate of Public Convenience and Necessity
FERC = Federal Energy Regulatory Commission
KV = Kilovolt (1,000 volts)
LTP = Local Transmission Plan
MW = Megawatts (millions of watts)
NERC = North American Electric Regulatory Corporation
OASIS = Open Access Same-time Information System
POD = Point of Delivery
TCPC = Transmission Coordination & Planning Committee
WECC = Western Electricity Coordinating Council
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