1. Overview of Southern Company Transmission
Southern Company Transmission 2008 Customer Forum

2. Southern Companies’ Footprint
You Are Here
Southern Companies’ Footprint

3. Alabama Power Georgia Power Gulf Power Mississippi Power SBA covers
Around
122,500 sq.mi.
Alabama Power
Georgia Transmission Corporation
Georgia Power
Municipal Electric Authority of Georgia
City of Dalton
Gulf Power
Powersouth
Mississippi Power
South Mississippi Electric Municipal Authority

4. Interfaces with External Utilities
VACAR
53 Tie lines to neighboring systems
Tennessee Valley
Authority
Entergy
Duke
SCE&G
SCPSA
Southern has 53 tie lines connecting us to neighboring utilities
AEC
SMEPA
Peninsular
Florida
FPL
PEF
JEA
TAL
Interfaces with External Utilities

5. Transmission Statistics
Transmission Circuit Line Miles
2006
<100 kV
7,407
115 kV
12,628
230 kV
5,333
500 kV
1,532
Total
26,900
Trivia: The circumference of the Earth is approximately 24,900 miles.

6. Transmission Statistics
Bulk Transmission
Capital Expenditures
(budgeted)
Transmission O&M
2008
$361,627,000
$208,766,000
2009
$411,446,000
$213,603,000
2010
$389,835,000
$218,541,000
2011
$395,892,000
$222,552,000

7. Southern Company Transmission
Southern Companies
Alabama
Power
Georgia Power
Gulf
Power
Mississippi
Power
Southern Company Services
Southern Company Transmission

8. NERC Functional Roles Operating Companies
Transmission Owner
Load Serving Entity
Distribution Provider
Generator Owner
Southern Company Transmission
Transmission Operator
Transmission Service Provider
Balancing Authority
Interchange Authority
Planning Authority
Transmission Planner
Reliability Coordinator

9. PCC
PCC
PCC
PCC
SCS
OPCO
SC Gen
PCC & TCC
SCS
SCS
OPCO
OPCO
SC Gen
OPCO

10. Control Centers Power Coordination Center Alabama Control Center
Georgia Control Center
Gulf Control Center
Mississippi Control Center

11. Power Coordination Center (PCC)
Responsible for:
Monitoring the bulk system to ensure the reliability of the interconnection
Balance generation and load to maintain frequency
Verify Interchange (schedule/actual) with neighbors
Operate the system to provide reliable service and accommodate maintenance and construction

12. Power Coordination Center (PCC)
Responsible for:
Monitors transmission reliability and performs contingency analysis to identify System Operating Limits
Processing OASIS reservations for short-term transmission service
Processing Energy Transaction schedules (e-Tags)

13. Transmission Control Centers (TCC)
TCCs perform Transmission Operator
functions with focus on:
Local load service/reliability
Outage coordination
Switching
System restoration & major storms

14. Transmission Control Centers (TCC)
Any questions regarding outage requests or substation testing should be directed to the appropriate TCC
Per the Operating Committee Agreement, TCC should be contacted prior to any facility testing

15. Who you gonna call?
TCC – Prior to any time personnel will be performing testing or accessing the control house or switchyard
PCC – Questions regarding Tagging and Scheduling
OASIS Administrator – OASIS related issues or problems
Transmission Service Group - Interconnection or Delivery Service or other Tariff related issue.
Need to expand on this somewhat.

16. Question or Concern when you don’t know where to direct:
Daryl McGee
Manager, Transmission Services
Southern Company Transmission
(cell)
(fax)