Transcript Power Supply Study Phase III

APPA RELIABILITY STANDARDS
& COMPLIANCE SYMPOSIUM
Case Study:
City Utilities of Springfield, MO
January 11, 2007
Overview
• Introduction
• NERC Functional Responsibilities
• Documentation and Review of Transmission
Operator Function
• Conclusion
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Service Area
– Population
222,000
– Size (in square miles)
320
Electric System
– Customers
104,853
– Hourly Peak demand
801 MWh
– MWh Annual Growth
2.1%
Natural Gas
– Customers
81,610
– 2006 System Sales
10,434,889 Dth
Water
– Customers
78,943
– 2005 System Sales
10,015,838,000 Gal
Transit
– 2005 Riders
1,708,824
– Miles of Route
175
Telecommunications (Springnet)
– High Level/Commercial Broadband Supplier
– Secure Server/Remote Site Backup Service
Transmission System
• 345 kV Transmission - 44.2 miles
– 1 Substation
– 2 Points of Interconnection
• 161 kV Transmission
– 74 miles of 161 kV Transmission Circuits
– 13 Substations
– 4 Points of Interconnection
• 69 kV Transmission
– 90 miles of 69 kV Transmission Circuits
– 26 Substations
Distribution System
• 13.2 kV Distribution
– 1,934 Miles of 13.2 kV Distribution Circuits
• 1,437 Miles Overhead
• 497 Miles Underground
– 31 Distribution Substations
City Utilities’
Power System
Control
Power Generation
5 Generating Sites
450 MW Coal-Fired
367 MW Oil & Gas-Fired
3.2 MW Landfill Gas
14 Generators
Market Agent
TEA
Transmission &
Distribution
Security
Coordinator
SPP
40 Substations
208 Miles of Transmission Line
1,934 Miles of Distribution
104,853 Customers
Balancing
Authority
SWPA
City Utilities’ NERC Registered Functions
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Distribution Provider
Generation Owner
Generation Operator
Load-Serving Entity
Purchasing-Selling Entity
Resource Planner
Transmission Owner
Transmission Operator
Transmission Planner
Board of Public
Utilities
John Twitty
General Manager
Operations
-T&D
- Maintenance
- Testing
- Vegetation
Management
Electric Supply
- Dispatch
- Generation
- Transmission
Planning
Administration
- Information
Technology
- Cyber Security
Finance
- Risk Management
- Physical Security
Examples of Cross Area Responsibilities
• Standard EOP-004-0 — Disturbance Reporting
– 3. Purpose: Disturbances or unusual occurrences that jeopardize the
operation of the Bulk Electric System, or result in system equipment
damage or customer interruptions, need to be studied and understood to
minimize the likelihood of similar events in the future.
– 4. Applicability
• 4.1. Reliability Coordinators.
• 4.2. Balancing Authorities.
• 4.3. Transmission Operators.
• 4.4. Generator Operators.
• 4.5. Load Serving Entities.
• 4.6. Regional Reliability Organizations.
Examples of Cross Area Responsibilities
• Standard FAC-002-0 — Coordination of Plans for
New Facilities
– 3. Purpose: To avoid adverse impacts on reliability, Generator Owners
and Transmission Owners and electricity end-users must meet facility
connection and performance requirements.
– 4. Applicability
• 4.1. Generator Owner
• 4.2. Transmission Owner
• 4.3. Distribution Provider
• 4.4. Load-Serving Entity
• 4.5. Transmission Planner
• 4.6. Planning Authority
Examples of Cross Area Responsibilities
• Standard IRO-004-0 — Reliability Coordination —
Operations Planning
– 3. Purpose: Each Reliability Coordinator must conduct next-day reliability analyses
for its Reliability Coordinator Area to ensure the Bulk Electric System can be
operated reliably in anticipated normal and Contingency conditions. System studies
must be conducted to highlight potential interface and other operating limits,
including overloaded transmission lines and transformers, voltage and stability
limits, etc. Plans must be developed to alleviate System Operating Limit (SOL) and
Interconnection Reliability Operating Limit (IROL) violations.
– 4. Applicability
• 4.1. Reliability Coordinators
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4.2. Balancing Authorities
4.3. Transmission Operators
4.4. Transmission Service Providers
4.5. Transmission Owners
4.6. Generator Owners
4.7. Generator Operators
4.8. Load-Serving Entities
Preparation
• Late Start
– Company organization structure led to fractured approach
• Attended SPP Compliance Workshop
• Preparation for SPP and NERC Transmission Operation
Audit in 2006
– Developed cross-area team to prepare all documentation
• Corporate-Wide Standards Review
– Critical Assets
– Division of Standards
Ongoing
• Identifying Overlap/Gaps in Standards Management
• NERC Standards Education
• Training Program Enhancement
Future
• Develop job description and hire/transfer new
Standards Administrator
• Select Sr. Manager to oversee and manage CIP
Standards
• Incorporate Corporate-wide Standards, update
meetings to ensure compliance without overlap
• Determining level of compliance
Lessons Learned
• Start now
• System Operator certification, training and documentation
are essential
• Internal and external training should be used
• Identify responsible area(s) for each applicable standard
• Document, document, document……
• Establish formal document management program including
management review and approval