CBM is an amount of firm transmission preserved for Load Serving Entities (LSEs) on the host transmission system where their load is located. This emergency transfer capability is needed to enable access to generation from interconnected systems to meet generation reliability requirements. Preservation of CBM for a LSE allows that entity to reduce its installed generating capacity below what may otherwise have been necessary without interconnections to meet its generation reliability requirements. Progress Energy Florida (PEF) complies with the Florida Reliability Coordinating Council (FRCC) CBM methodology to assess its CBM needs:
"FRCC Transmission Providers make an assessment of the CBM needed on their respective systems by using either deterministic or probabilistic generation reliability analysis. The appropriate amount of transmission interface capability is then reserved for CBM on a per interface basis, taking into account the amount of generation available on other interconnected systems, the respective load peaking diversities of those systems, and TRM. Operating reserves may be included if appropriate in TRM and subsequently subtracted from the CBM needed."
Measurement Criteria:
PEF utilizes a multi-area probabilistic analysis to assess generation system reliability. A multi-area analysis takes into consideration the capacity assistance available through interconnections with neighboring electric utilities. Generating reliability depends on the strength of the interconnections, the generation reserves available from the neighboring systems, and also the diversity in loads throughout the interconnected area. Thus, the interconnected system analysis shows the overall level of generation reliability and reflects the expected risk of capacity deficient conditions for supplying load.
Reliability Criteria:
A Loss-of-Load Expectation (LOLE) of a maximum of 1 day in 10 years is a widely accepted criterion for establishing system reliability. PEF utilizes a target reliability of a maximum of 1 day in 10 years LOLE for generation reliability assessment. LOLE can be viewed as the expected number of days that the load will exceed available capacity. Thus, LOLE gives a physical sense of reliability and indicates the number of days that a capacity deficient condition could occur, resulting in the inability to supply customer demand.
CBM Requirement:
Based on probabilistic multi-area analysis, PEF determines the emergency transfer capability needed to achieve the target reliability of a maximum of 1 day in 10 years LOLE. PEF performs this analysis for the PEF native load and for all network loads. The emergency transfer capability needed to meet the needs of the total network load is then compared to the total TRM value reserved. If the TRM value is less than the CBM required, then the difference is reserved as CBM; if not, then a CBM reservation is not required.
Who Performs the CBM Assessment?
The Resource Planning Unit of the Transmission Operations & Planning Department is responsible for conducting generation reliability analyses and determining the CBM transfer capability needed to achieve the target reliability of a maximum of 1 day in 10 years LOLE. The CBM assessment is performed annually as part of the preparation and submission of the Regional Load & Resource Plan filing with the Florida Public Service Commission.
CBM Reservation in the ATC Process:
The Power System Operations staff of the Transmission Operations & Planning Department is responsible for reserving CBM transfer capability in the ATC process based on the CBM requirements determined by the Resource Planning Unit. PEF currently has zero CBM reserved on each of its interfaces (posted paths).
CBM Use Procedure:
This section of this procedure supports compliance with NERC standards MOD-006 and MOD-007. Currently there is no need for a CBM use procedure on the PEF system since the past and current CBM reservation is zero. In the event that CBM is reserved and energy is scheduled against a CBM reservation by a network customer on the PEF system in the future, CBM use will be subject to the following requirements:
CBM will only be used if the Load-Serving Entity calling for its use is experiencing a generation deficiency and PEF, as its Transmission Service Provider, is also experiencing Transmission Constraints relative to imports of energy on its transmission system. CBM will be used only after the following steps have been taken (as time permits): (1) all non-firm sales have been terminated, (2) Direct-Control Load Management has been implemented, and (3) customer interruptible demands have been interrupted. CBM may be used to reestablish Operating Reserves. CBM will not be made available on the PEF system as Non-Firm
Transmission Service.
In the event that CBM is reserved and used on the PEF system, PEF will report the use of CBM by the Load-Serving Entities’ Loads on its system to the FRCC,
NERC and the transmission users. In addition, PEF will post the following information on its OASIS within 15 calendar days after the use of CBM for an Energy Emergency: (1) the circumstances of the CBM use, (2) the duration of CBM use, and (3) the amount of CBM used.
PEF’s TRM is based on short-term operating reserve requirements in accordance with NERC standard MOD-008. PEF is a member of the FRCC Reserve Sharing Group. The operating reserve requirements of PEF and it’s neighboring interconnected systems in Florida are defined by the FRCC Operating Reserve Policy. FRCC operating reserves are maintained at a level equal to or greater than the loss of generation that would result from the largest single contingency, currently 910 MW. Each reserve group member is required to maintain their share of operating reserves based on a formula related to peak hour net energy for load and the capability of its largest unit in gross MW. PEF’s TRM provides for PEF to reliably call for and provide required operating reserves.
PEF calculates and applies TRM to specific interfaces based on operating reserve requirements, resulting in a reduction in transfer capability. PEF does not allow TRM to be sold on a firm basis, but does allow for TRM to be sold on a non-firm basis. TRM may be utilized by Load Serving Entities in the PEF Balancing Authority area under the following conditions; (1) Presence of a disturbance (loss of firm resource) resulting in an operating reserve call, and (2) Declaration of an Energy Emergency Alert (EEA) due to insufficient resources.
|
Path |
POR |
POD |
Path TRM |
|
F/FPC/FMPP-FPC// |
FMPP |
FPC |
97 |
|
F/FPC/FMPP-SEC/FMPP-FPCS/ |
FMPP |
FPCS |
97 |
|
F/FPC/FMPP-FPL// |
FMPP |
FPL |
187 |
|
F/FPC/FMPP-GVL// |
FMPP |
GVL |
47 |
|
F/FPC/FMPP-NSB// |
FMPP |
NSB |
187 |
|
F/FPC/FMPP-RC// |
FMPP |
RC |
8 |
|
F/FPC/FMPP-SEC// |
FMPP |
SEC |
187 |
|
F/FPC/FMPP-SOCO// |
FMPP |
SOCO |
438 |
|
F/FPC/FMPP-TAL// |
FMPP |
TAL |
50 |
|
F/FPC/FMPP-TEC// |
FMPP |
TEC |
187 |
|
F/FPC/FPC-FMPP// |
FPC |
FMPP |
187 |
|
F/FPC/FPC-SEC/FPC-FPCS/ |
FPC |
FPCS |
0 |
|
F/FPC/FPC-FPL// |
FPC |
FPL |
187 |
|
F/FPC/FPC-GVL// |
FPC |
GVL |
47 |
|
F/FPC/FPC-NSB// |
FPC |
NSB |
187 |
|
F/FPC/FPC-FMPP/FPC-PFW/ |
FPC |
PFW |
0 |
|
F/FPC/FPC-RC// |
FPC |
RC |
8 |
|
F/FPC/FPC-SEC// |
FPC |
SEC |
187 |
|
F/FPC/FPC-SOCO// |
FPC |
SOCO |
438 |
|
F/FPC/FPC-TAL// |
FPC |
TAL |
50 |
|
F/FPC/FPC-TEC// |
FPC |
TEC |
187 |
|
F/FPC/FPL-FMPP// |
FPL |
FMPP |
386 |
|
F/FPC/FPL-FPC// |
FPL |
FPC |
386 |
|
F/FPC/FPL-SEC/FPL-FPCS/ |
FPL |
FPCS |
386 |
|
F/FPC/FPL-GVL// |
FPL |
GVL |
47 |
|
F/FPC/FPL-FMPP/FPL-PFW/ |
FPL |
PFW |
386 |
|
F/FPC/FPL-RC// |
FPL |
RC |
8 |
|
F/FPC/FPL-SOCO// |
FPL |
SOCO |
438 |
|
F/FPC/FPL-TAL// |
FPL |
TAL |
50 |
|
F/FPC/GVL-FMPP// |
GVL |
FMPP |
187 |
|
F/FPC/GVL-FPC// |
GVL |
FPC |
28 |
|
F/FPC/GVL-SEC/GVL-FPCS/ |
GVL |
FPCS |
28 |
|
F/FPC/GVL-FPL// |
GVL |
FPL |
187 |
|
F/FPC/GVL-NSB// |
GVL |
NSB |
187 |
|
F/FPC/GVL-FMPP/GVL-PFW/ |
GVL |
PFW |
28 |
|
F/FPC/GVL-RC// |
GVL |
RC |
28 |
|
F/FPC/GVL-SEC// |
GVL |
SEC |
187 |
|
F/FPC/GVL-SOCO// |
GVL |
SOCO |
438 |
|
F/FPC/GVL-TAL// |
GVL |
TAL |
50 |
|
F/FPC/GVL-TEC// |
GVL |
TEC |
187 |
|
F/FPC/FPC-FMPP/MUL-FMPP/ |
MUL |
FMPP |
187 |
|
F/FPC/FPC-FPC/MUL-FPC/ |
MUL |
FPC |
0 |
|
F/FPC/FPC-SEC/MUL-FPCS/ |
MUL |
FPCS |
0 |
|
F/FPC/FPC-FPL/MUL-FPL/ |
MUL |
FPL |
187 |
|
F/FPC/FPC-GVL/MUL-GVL/ |
MUL |
GVL |
47 |
|
F/FPC/FPC-NSB/MUL-NSB/ |
MUL |
NSB |
187 |
|
F/FPC/FPC-FMPP/MUL-PFW/ |
MUL |
PFW |
0 |
|
F/FPC/FPC-RC/MUL-RC/ |
MUL |
RC |
8 |
|
F/FPC/FPC-SEC/MUL-SEC/ |
MUL |
SEC |
187 |
|
F/FPC/FPC-SOCO/MUL-SOCO/ |
MUL |
SOCO |
438 |
|
F/FPC/FPC-TAL/MUL-TAL/ |
MUL |
TAL |
50 |
|
F/FPC/FPC-TEC/MUL-TEC/ |
MUL |
TEC |
187 |
|
F/FPC/NSB-FMPP// |
NSB |
FMPP |
187 |
|
F/FPC/NSB-FPC// |
NSB |
FPC |
3 |
|
F/FPC/NSB-SEC/NSB-FPCS/ |
NSB |
FPCS |
3 |
|
F/FPC/NSB-GVL// |
NSB |
GVL |
47 |
|
F/FPC/NSB-FMPP/NSB-PFW/ |
NSB |
PFW |
3 |
|
F/FPC/NSB-RC// |
NSB |
RC |
8 |
|
F/FPC/NSB-SEC// |
NSB |
SEC |
187 |
|
F/FPC/NSB-SOCO// |
NSB |
SOCO |
438 |
|
F/FPC/NSB-TAL// |
NSB |
TAL |
50 |
|
F/FPC/NSB-TEC// |
NSB |
TEC |
187 |
|
F/FPC/FPC-FMPP/ORG-FMPP/ |
ORG |
FMPP |
187 |
|
F/FPC/FPC-FPC/ORG-FPC/ |
ORG |
FPC |
0 |
|
F/FPC/FPC-SEC/ORG-FPCS/ |
ORG |
FPCS |
0 |
|
F/FPC/FPC-FPL/ORG-FPL/ |
ORG |
FPL |
187 |
|
F/FPC/FPC-GVL/ORG-GVL/ |
ORG |
GVL |
47 |
|
F/FPC/FPC-NSB/ORG-NSB/ |
ORG |
NSB |
187 |
|
F/FPC/FPC-FMPP/ORG-PFW/ |
ORG |
PFW |
0 |
|
F/FPC/FPC-RC/ORG-RC/ |
ORG |
RC |
8 |
|
F/FPC/FPC-SEC/ORG-SEC/ |
ORG |
SEC |
187 |
|
F/FPC/FPC-SOCO/ORG-SOCO/ |
ORG |
SOCO |
438 |
|
F/FPC/FPC-TAL/ORG-TAL/ |
ORG |
TAL |
50 |
|
F/FPC/FPC-TEC/ORG-TEC/ |
ORG |
TEC |
187 |
|
F/FPC/FPC-FMPP/ORL-FMPP/ |
ORL |
FMPP |
187 |
|
F/FPC/FPC-FPC/ORL-FPC/ |
ORL |
FPC |
0 |
|
F/FPC/FPC-SEC/ORL-FPCS/ |
ORL |
FPCS |
0 |
|
F/FPC/FPC-FPL/ORL-FPL/ |
ORL |
FPL |
187 |
|
F/FPC/FPC-GVL/ORL-GVL/ |
ORL |
GVL |
47 |
|
F/FPC/FPC-NSB/ORL-NSB/ |
ORL |
NSB |
187 |
|
F/FPC/FPC-FMPP/ORL-PFW/ |
ORL |
PFW |
0 |
|
F/FPC/FPC-RC/ORL-RC/ |
ORL |
RC |
8 |
|
F/FPC/FPC-SEC/ORL-SEC/ |
ORL |
SEC |
187 |
|
F/FPC/FPC-SOCO/ORL-SOCO/ |
ORL |
SOCO |
438 |
|
F/FPC/FPC-TAL/ORL-TAL/ |
ORL |
TAL |
50 |
|
F/FPC/FPC-TEC/ORL-TEC/ |
ORL |
TEC |
187 |
|
F/FPC/FPC-FMPP/OSL-FMPP/ |
OSL |
FMPP |
187 |
|
F/FPC/FPC-FPC/OSL-FPC/ |
OSL |
FPC |
0 |
|
F/FPC/FPC-SEC/OSL-FPCS/ |
OSL |
FPCS |
0 |
|
F/FPC/FPC-FPL/OSL-FPL/ |
OSL |
FPL |
187 |
|
F/FPC/FPC-GVL/OSL-GVL/ |
OSL |
GVL |
47 |
|
F/FPC/FPC-NSB/OSL-NSB/ |
OSL |
NSB |
187 |
|
F/FPC/FPC-FMPP/OSL-PFW/ |
OSL |
PFW |
0 |
|
F/FPC/FPC-RC/OSL-RC/ |
OSL |
RC |
8 |
|
F/FPC/FPC-SEC/OSL-SEC/ |
OSL |
SEC |
187 |
|
F/FPC/FPC-SOCO/OSL-SOCO/ |
OSL |
SOCO |
438 |
|
F/FPC/FPC-TAL/OSL-TAL/ |
OSL |
TAL |
50 |
|
F/FPC/FPC-TEC/OSL-TEC/ |
OSL |
TEC |
187 |
|
F/FPC/RC-FMPP// |
RC |
FMPP |
187 |
|
F/FPC/RC-FPC// |
RC |
FPC |
8 |
|
F/FPC/RC-SEC/RC-FPCS/ |
RC |
FPCS |
8 |
|
F/FPC/RC-FPL// |
RC |
FPL |
187 |
|
F/FPC/RC-GVL// |
RC |
GVL |
47 |
|
F/FPC/RC-NSB// |
RC |
NSB |
187 |
|
F/FPC/RC-FMPP/RC-PFW/ |
RC |
PFW |
8 |
|
F/FPC/RC-SEC// |
RC |
SEC |
187 |
|
F/FPC/RC-SOCO// |
RC |
SOCO |
438 |
|
F/FPC/RC-TAL// |
RC |
TAL |
50 |
|
F/FPC/FPC-FPC/RDGS-FPC/ |
RDGS |
FPC |
97 |
|
F/FPC/FPC-SEC/RDGS-FPCS/ |
RDGS |
FPCS |
97 |
|
F/FPC/FPC-FPL/RDGS-FPL/ |
RDGS |
FPL |
187 |
|
F/FPC/FPC-GVL/RDGS-GVL/ |
RDGS |
GVL |
97 |
|
F/FPC/FPC-NSB/RDGS-NSB/ |
RDGS |
NSB |
187 |
|
F/FPC/FPC-FMPP/RDGS-PFW/ |
RDGS |
PFW |
97 |
|
F/FPC/FPC-RC/RDGS-RC/ |
RDGS |
RC |
97 |
|
F/FPC/FPC-SEC/RDGS-SEC/ |
RDGS |
SEC |
187 |
|
F/FPC/FPC-SOCO/RDGS-SOCO/ |
RDGS |
SOCO |
438 |
|
F/FPC/FPC-TAL/RDGS-TAL/ |
RDGS |
TAL |
97 |
|
F/FPC/FPC-TEC/RDGS-TEC/ |
RDGS |
TEC |
187 |
|
F/FPC/TEC-FPC/RECK-FPC/ |
RECK |
FPC |
86 |
|
F/FPC/TEC-FPC/RECK-FPCS/ |
RECK |
FPCS |
86 |
|
F/FPC/TEC-GVL/RECK-GVL/ |
RECK |
GVL |
47 |
|
F/FPC/TEC-NSB/RECK-NSB/ |
RECK |
NSB |
187 |
|
F/FPC/TEC-FPC/RECK-PFW/ |
RECK |
PFW |
86 |
|
F/FPC/TEC-RC/RECK-RC/ |
RECK |
RC |
8 |
|
F/FPC/TEC-SEC/RECK-SEC/ |
RECK |
SEC |
187 |
|
F/FPC/TEC-SOCO/RECK-SOCO/ |
RECK |
SOCO |
438 |
|
F/FPC/TEC-TAL/RECK-TAL/ |
RECK |
TAL |
50 |
|
F/FPC/SEC-FMPP// |
SEC |
FMPP |
187 |
|
F/FPC/SEC-FPC// |
SEC |
FPC |
102 |
|
F/FPC/SEC-FPL// |
SEC |
FPL |
187 |
|
F/FPC/SEC-GVL// |
SEC |
GVL |
47 |
|
F/FPC/SEC-NSB// |
SEC |
NSB |
187 |
|
F/FPC/SEC-FMPP/SEC-PFW/ |
SEC |
PFW |
102 |
|
F/FPC/SEC-RC// |
SEC |
RC |
8 |
|
F/FPC/SEC-SOCO// |
SEC |
SOCO |
438 |
|
F/FPC/SEC-TAL// |
SEC |
TAL |
50 |
|
F/FPC/SEC-TEC// |
SEC |
TEC |
187 |
|
F/FPC/FPC-FMPP/SHD-FMPP/ |
SHD |
FMPP |
187 |
|
F/FPC/FPC-FPC/SHD-FPC/ |
SHD |
FPC |
0 |
|
F/FPC/FPC-SEC/SHD-FPCS/ |
SHD |
FPCS |
0 |
|
F/FPC/FPC-FPL/SHD-FPL/ |
SHD |
FPL |
187 |
|
F/FPC/FPC-GVL/SHD-GVL/ |
SHD |
GVL |
47 |
|
F/FPC/FPC-NSB/SHD-NSB/ |
SHD |
NSB |
187 |
|
F/FPC/FPC-FMPP/SHD-PFW/ |
SHD |
PFW |
0 |
|
F/FPC/FPC-RC/SHD-RC/ |
SHD |
RC |
8 |
|
F/FPC/FPC-SEC/SHD-SEC/ |
SHD |
SEC |
187 |
|
F/FPC/FPC-SOCO/SHD-SOCO/ |
SHD |
SOCO |
438 |
|
F/FPC/FPC-TAL/SHD-TAL/ |
SHD |
TAL |
50 |
|
F/FPC/FPC-TEC/SHD-TEC/ |
SHD |
TEC |
187 |
|
F/FPC/SOCO-FMPP// |
SOCO |
FMPP |
187 |
|
F/FPC/SOCO-FPC// |
SOCO |
FPC |
100 |
|
F/FPC/SOCO-SEC/SOCO-FPCS/ |
SOCO |
FPCS |
100 |
|
F/FPC/SOCO-FPL// |
SOCO |
FPL |
187 |
|
F/FPC/SOCO-GVL// |
SOCO |
GVL |
47 |
|
F/FPC/SOCO-NSB// |
SOCO |
NSB |
187 |
|
F/FPC/SOCO-FMPP/SOCO-PFW/ |
SOCO |
PFW |
100 |
|
F/FPC/SOCO-RC// |
SOCO |
RC |
8 |
|
F/FPC/SOCO-SEC// |
SOCO |
SEC |
187 |
|
F/FPC/SOCO-TEC// |
SOCO |
TEC |
187 |
|
F/FPC/TAL-FMPP// |
TAL |
FMPP |
187 |
|
F/FPC/TAL-FPC// |
TAL |
FPC |
36 |
|
F/FPC/TAL-SEC/TAL-FPCS/ |
TAL |
FPCS |
36 |
|
F/FPC/TAL-FPL// |
TAL |
FPL |
187 |
|
F/FPC/TAL-GVL// |
TAL |
GVL |
47 |
|
F/FPC/TAL-NSB// |
TAL |
NSB |
187 |
|
F/FPC/TAL-FMPP/TAL-PFW/ |
TAL |
PFW |
36 |
|
F/FPC/TAL-RC// |
TAL |
RC |
36 |
|
F/FPC/TAL-SEC// |
TAL |
SEC |
187 |
|
F/FPC/TAL-TEC// |
TAL |
TEC |
187 |
|
F/FPC/TEC-FMPP// |
TEC |
FMPP |
187 |
|
F/FPC/TEC-FPC// |
TEC |
FPC |
86 |
|
F/FPC/TEC-SEC/TEC-FPCS/ |
TEC |
FPCS |
86 |
|
F/FPC/TEC-GVL// |
TEC |
GVL |
47 |
|
F/FPC/TEC-NSB// |
TEC |
NSB |
187 |
|
F/FPC/TEC-FMPP/TEC-PFW/ |
TEC |
PFW |
86 |
|
F/FPC/TEC-RC// |
TEC |
RC |
8 |
|
F/FPC/TEC-SEC// |
TEC |
SEC |
187 |
|
F/FPC/TEC-SOCO// |
TEC |
SOCO |
438 |
|
F/FPC/TEC-TAL// |
TEC |
TAL |
50 |
|
F/FPC/FPC-FPC/VAN-FPC/ |
VAN |
FPC |
0 |
|
F/FPC/FPC-SEC/VAN-FPCS/ |
VAN |
FPCS |
0 |
|
F/FPC/FPC-FPL/VAN-FPL/ |
VAN |
FPL |
187 |
|
F/FPC/FPC-GVL/VAN-GVL/ |
VAN |
GVL |
47 |
|
F/FPC/FPC-NSB/VAN-NSB/ |
VAN |
NSB |
187 |
|
F/FPC/FPC-FMPP/VAN-PFW/ |
VAN |
PFW |
0 |
|
F/FPC/FPC-RC/VAN-RC/ |
VAN |
RC |
8 |
|
F/FPC/FPC-SEC/VAN-SEC/ |
VAN |
SEC |
187 |
|
F/FPC/FPC-SOCO/VAN-SOCO/ |
VAN |
SOCO |
438 |
|
F/FPC/FPC-TAL/VAN-TAL/ |
VAN |
TAL |
50 |
|
F/FPC/FPC-TEC/VAN-TEC/ |
VAN |
TEC |
187 |