As a Distribution Network Service Provider (DNSP), we are required to publish this information under Rule 5.13 and Schedule 5.8 of the National Electricity Rules (NER).
Peak Load Forecast and Capacity Tables
These tables show information about the substation’s customer category, transformer capacity, including emergency cyclic capacity and normal cyclic capacity, load at risk, and the compliance of each substation with its security standard.
Definition of Terms - Feeder Capacity and Forecast Tables
Peak Risk Period
The time period over which the load is highest (Day/Night).
NCC Rating (MVA)
Normal Cyclic Capacity - the total capacity with all network components and equipment in service.
Contracted non-network (MVA)
The amount of embedded generation and contracted curtailed demand management capacity available within the supply area of a substation during peak times. The impacts of these have been incorporated into the load forecasts. Solar PV connections are not included in the reported figure.
10 PoE Load (MVA)
Peak load forecast with 10% probability of being exceeded (one in every 10 years will be exceeded). Based on normal expected growth rates and weather corrected starting loads.
LARn (MVA)
Security standard load at risk under system normal condition, expressed in MVA.
LARn (MW)
Security standard load at risk under system normal condition, expressed in MW.
Power Factor at Peak Load
Compensated power factor at 50 PoE Load.
ECC Rating (MVA)
Emergency Cyclic Capacity – the long term firm delivery capacity under a single contingent condition.
50 PoE Load (MVA)
Peak load forecast with 50% probability of being exceeded (one in every two years will be exceeded). Based on normal expected growth rates & weather corrected starting loads.
Hours PA > 95% Peak Load
The amount of load greater than 95% 50 PoE Load.
Raw LAR (MVA)
The amount of load exceeding ECC rating. (Load – ECC Rating)
2-Hour Rating (MVA)
Two Hour Emergency Capacity (2HEC) – the short term or firm delivery capacity under single contingency conditions.
Auto Trans Avail (MVA)
SCADA or automatically controlled load transfers that can be implemented within one minute.
Remote Trans Avail (MVA)
Load transfers that can be implemented through SCADA switching procedures by the network control officer. It is assumed that this can generally be achieved within 30 minutes.
Manual Trans Avail (MVA)
Load transfers can also be deployed via manually controlled switchgear locally by field staff.
Mobile Plant Avail (MVA)
The capacity of mobile substation or mobile generation that can be deployed within the timeframe and capacity prescribed by the security standard.
POPS
Plant Overload Protection Scheme (POPS) consists of several applications which continuously monitor specific items of plant for overload conditions. If overload conditions are detected and validated, POPS will initiate predefined actions in order to relieve the overload condition.
LARc (MVA)
Security standard load at risk for single contingent conditions.
LARc (MW)
Estimated generation / load reduction required to defer the forecast system limitation. This is the security standard load at risk under single contingency condition, expressed in MW.
Customer Category
For security standard application, the general type of customer a substation or feeder supplying the area.
For further information, please refer to Appendix E of Energex Distribution Annual Planning Report.
The tables show information for Jointly Owned Substations in the Energex network. These are typically substations that Powerlink own, and are Transmission Connection Points to the Energex network. It should be noted that for Jointly Owned substations, Energex typically only owns the switchgear at the connection point, and as such the Energex ratings will not reflect the rating of upstream equipment not owned by Energex.
And then include the following:
Definition of Terms - Feeder Capacity and Forecast Tables
Peak Risk Period
The time period over which the load is highest (Day/Night).
NCC Rating (MVA)
Normal Cyclic Capacity - the total capacity with all network components and equipment in service.
Contracted non-network (MVA)
The amount of embedded generation and contracted curtailed demand management capacity available within the supply area of a substation during peak times. The impacts of these have been incorporated into the load forecasts. Solar PV connections are not included in the reported figure.
10 PoE Load (MVA)
Peak load forecast with 10% probability of being exceeded (one in every 10 years will be exceeded). Based on normal expected growth rates and weather corrected starting loads.
LARn (MVA)
Security standard load at risk under system normal condition, expressed in MVA.
LARn (MW)
Security standard load at risk under system normal condition, expressed in MW.
Power Factor at Peak Load
Compensated power factor at 50 PoE Load.
ECC Rating (MVA)
Emergency Cyclic Capacity – the long term firm delivery capacity under a single contingent condition.
50 PoE Load (MVA)
Peak load forecast with 50% probability of being exceeded (one in every two years will be exceeded). Based on normal expected growth rates & weather corrected starting loads.
Hours PA > 95% Peak Load
The amount of load greater than 95% 50 PoE Load.
Raw LAR (MVA)
The amount of load exceeding ECC rating. (Load – ECC Rating)
2-Hour Rating (MVA)
Two Hour Emergency Capacity (2HEC) – the short term or firm delivery capacity under single contingency conditions.
Auto Trans Avail (MVA)
SCADA or automatically controlled load transfers that can be implemented within one minute.
Remote Trans Avail (MVA)
Load transfers that can be implemented through SCADA switching procedures by the network control officer. It is assumed that this can generally be achieved within 30 minutes.
Manual Trans Avail (MVA)
Load transfers can also be deployed via manually controlled switchgear locally by field staff.
Mobile Plant Avail (MVA)
The capacity of mobile substation or mobile generation that can be deployed within the timeframe and capacity prescribed by the security standard.
POPS
Plant Overload Protection Scheme (POPS) consists of several applications which continuously monitor specific items of plant for overload conditions. If overload conditions are detected and validated, POPS will initiate predefined actions in order to relieve the overload condition.
LARc (MVA)
Security standard load at risk for single contingent conditions.
LARc (MW)
Estimated generation / load reduction required to defer the forecast system limitation. This is the security standard load at risk under single contingency condition, expressed in MW.
Customer Category
For security standard application, the general type of customer a substation or feeder supplying the area.
For further information, please refer to Appendix E of Energex Distribution Annual Planning Report.
Peak Load Forecast and Capacity Tables
These tables show information about the substation’s customer category, transformer capacity, including emergency cyclic capacity and normal cyclic capacity, load at risk, and the compliance of each substation with its security standard.
Definition of Terms - Feeder Capacity and Forecast Tables
Peak Risk Period
The time period over which the load is highest (Day/Night).
NCC Rating (MVA)
Normal Cyclic Capacity - the total capacity with all network components and equipment in service.
Contracted non-network (MVA)
The amount of embedded generation and contracted curtailed demand management capacity available within the supply area of a substation during peak times. The impacts of these have been incorporated into the load forecasts. Solar PV connections are not included in the reported figure.
10 PoE Load (MVA)
Peak load forecast with 10% probability of being exceeded (one in every 10 years will be exceeded). Based on normal expected growth rates and weather corrected starting loads.
LARn (MVA)
Security standard load at risk under system normal condition, expressed in MVA.
LARn (MW)
Security standard load at risk under system normal condition, expressed in MW.
Power Factor at Peak Load
Compensated power factor at 50 PoE Load.
ECC Rating (MVA)
Emergency Cyclic Capacity – the long term firm delivery capacity under a single contingent condition.
50 PoE Load (MVA)
Peak load forecast with 50% probability of being exceeded (one in every two years will be exceeded). Based on normal expected growth rates & weather corrected starting loads.
Hours PA > 95% Peak Load
The amount of load greater than 95% 50 PoE Load.
Raw LAR (MVA)
The amount of load exceeding ECC rating. (Load – ECC Rating)
2-Hour Rating (MVA)
Two Hour Emergency Capacity (2HEC) – the short term or firm delivery capacity under single contingency conditions.
Auto Trans Avail (MVA)
SCADA or automatically controlled load transfers that can be implemented within one minute.
Remote Trans Avail (MVA)
Load transfers that can be implemented through SCADA switching procedures by the network control officer. It is assumed that this can generally be achieved within 30 minutes.
Manual Trans Avail (MVA)
Load transfers can also be deployed via manually controlled switchgear locally by field staff.
Mobile Plant Avail (MVA)
The capacity of mobile substation or mobile generation that can be deployed within the timeframe and capacity prescribed by the security standard.
POPS
Plant Overload Protection Scheme (POPS) consists of several applications which continuously monitor specific items of plant for overload conditions. If overload conditions are detected and validated, POPS will initiate predefined actions in order to relieve the overload condition.
LARc (MVA)
Security standard load at risk for single contingent conditions.
LARc (MW)
Estimated generation / load reduction required to defer the forecast system limitation. This is the security standard load at risk under single contingency condition, expressed in MW.
Customer Category
For security standard application, the general type of customer a substation or feeder supplying the area.
For further information, please refer to Appendix E of Energex Distribution Annual Planning Report.
Peak Load Forecast and Capacity Tables
These tables show information about the feeder capacity, load at risk, and the compliance of each feeder with its security standard.
Interconnected or feeders that supply multiple customers are examined in the following tables. Feeders exclusively supplying a customer owned substation or dedicated to a customer are not included in these tables.
Definition of Terms - Feeder Capacity and Forecast Tables
NCC Rating (A)
Normal Cyclic Capacity - the total capacity with all network components and equipment intact.
10 PoE Load (A)
Peak load forecast with 10% probability of being exceeded (one in every 10 years will be exceeded). Based on normal expected growth rates and weather corrected starting loads.
Power Factor (System Normal)
Lowest power factor along the feeder at 10 PoE Peak Load.
LARn (A)
Security standard load at risk under system normal condition, expressed in Amps.
LARn (MW)
Security standard load at risk under system normal condition, expressed in MW, assuming the nominal system voltages and lowest power factor.
ECC Rating (A)
Emergency Cyclic Capacity – the long term firm delivery capacity under single contingency conditions.
50 PoE Load (A)
Peak load forecast with 50% probability of being exceeded (one in every two years will be exceeded). Based on normal expected growth rates & weather corrected starting loads.
Hours PA > 95% Peak Load
The forecast number of hours per annum where the load exceeded 95% of the peak 50 PoE demand.
Raw LAR (A)
The amount of load exceeding ECC rating. (Load – ECC Rating)
2-Hour Rating (A)
Two Hour Emergency Capacity (2HEC) – the short term firm delivery capacity under single contingency conditions.
Auto Trans Avail (A)
SCADA or automatically controlled load transfers that can be implemented within one minute.
A blank entry indicates that this type of transfer is not considered as available in the evaluation of security standard compliance.
Remote Trans Avail (A)
Load transfers that can be implemented through SCADA switching procedures by the network control officer. It is assumed that this can generally be achieved within 30 minutes.
A blank entry indicates that this type of transfer is not considered as available in the evaluation of security standard compliance.
Manual Trans Avail (A)
Load transfers can also be deployed via manually controlled switchgear locally by field staff.
A blank entry indicates that this type of transfer is not considered as available in the evaluation of security standard compliance.
POPS
Plant Overload Protection Scheme (POPS) consists of several applications which continuously monitor specific items of plant for overload conditions. If overload conditions are detected and validated, POPS will initiate predefined actions in order to relieve the overload condition.
Mobile Gen Reqd (A)
The amount of generation required under the contingency, capped at the maximum MVA allowable under the security standard requirements.
LARc (A)
Security standards load at risk under single contingency condition, expressed in Amps.
LARc (MW)
Estimated generation / load reduction required to defer the forecast system limitation. This is the security standard load at risk under single contingency condition, expressed in MW, assuming the nominal system voltages and the lowest power factor on the feeder under system normal condition.
Customer Category
For security standard application, the general type of customer a sub-transmission, or transmission feeder is supplying.
Qualification on the information provided - for a given feeder:
- If there is no Raw LAR forecast over the period reported:
- Forecast:
- 10 PoE forecast is shown;
- 50 PoE is not shown; and
- shown as blank for feeders not normally supplying load.
- Rating:
- NCC rating is shown; and
- ECC and 2HEC ratings are not shown.
-
Transfers:
- If there is forecast Raw LAR in any year over the period reported:
- Forecast:
- 10 PoE is shown in all years; and
- 50 PoE is shown in years when Raw LAR is forecast and shown as blank in years where no Raw LAR is forecast.
- Rating:
-
NCC is shown in all years; and
ECC and 2HEC are shown in years when Raw LAR is forecast and shown as blank in years where no Raw LAR is forecast.
- Transfers – Auto, Remote and Manual:
- where available, details are provided in years where Raw LAR is forecast and shown as blank in years where no Raw LAR is forecast.
- Load at Risk:
- where available, details are provided in years where Raw LAR is forecast and shown as blank in years where no Raw LAR is forecast.
For further information, please refer to Appendix F of Energex Distribution Annual Planning Report.
Peak Load Forecast and Capacity Tables
These tables show information about the feeder capacity, load at risk, and the compliance of each feeder with its security standard.
Interconnected or feeders that supply multiple customers are examined in the following tables. Feeders exclusively supplying a customer owned substation or dedicated to a customer are not included in these tables.
Definition of Terms - Feeder Capacity and Forecast Tables
NCC Rating (A)
Normal Cyclic Capacity - the total capacity with all network components and equipment intact.
10 PoE Load (A)
Peak load forecast with 10% probability of being exceeded (one in every 10 years will be exceeded). Based on normal expected growth rates and weather corrected starting loads.
Power Factor (System Normal)
Lowest power factor along the feeder at 10 PoE Peak Load.
LARn (A)
Security standard load at risk under system normal condition, expressed in Amps.
LARn (MW)
Security standard load at risk under system normal condition, expressed in MW, assuming the nominal system voltages and lowest power factor.
ECC Rating (A)
Emergency Cyclic Capacity – the long term firm delivery capacity under single contingency conditions.
50 PoE Load (A)
Peak load forecast with 50% probability of being exceeded (one in every two years will be exceeded). Based on normal expected growth rates & weather corrected starting loads.
Hours PA > 95% Peak Load
The forecast number of hours per annum where the load exceeded 95% of the peak 50 PoE demand.
Raw LAR (A)
The amount of load exceeding ECC rating. (Load – ECC Rating)
2-Hour Rating (A)
Two Hour Emergency Capacity (2HEC) – the short term firm delivery capacity under single contingency conditions.
Auto Trans Avail (A)
SCADA or automatically controlled load transfers that can be implemented within one minute.
A blank entry indicates that this type of transfer is not considered as available in the evaluation of security standard compliance.
Remote Trans Avail (A)
Load transfers that can be implemented through SCADA switching procedures by the network control officer. It is assumed that this can generally be achieved within 30 minutes.
A blank entry indicates that this type of transfer is not considered as available in the evaluation of security standard compliance.
Manual Trans Avail (A)
Load transfers can also be deployed via manually controlled switchgear locally by field staff.
A blank entry indicates that this type of transfer is not considered as available in the evaluation of security standard compliance.
POPS
Plant Overload Protection Scheme (POPS) consists of several applications which continuously monitor specific items of plant for overload conditions. If overload conditions are detected and validated, POPS will initiate predefined actions in order to relieve the overload condition.
Mobile Gen Reqd (A)
The amount of generation required under the contingency, capped at the maximum MVA allowable under the security standard requirements.
LARc (A)
Security standards load at risk under single contingency condition, expressed in Amps.
LARc (MW)
Estimated generation / load reduction required to defer the forecast system limitation. This is the security standard load at risk under single contingency condition, expressed in MW, assuming the nominal system voltages and the lowest power factor on the feeder under system normal condition.
Customer Category
For security standard application, the general type of customer a sub-transmission, or transmission feeder is supplying.
Qualification on the information provided - for a given feeder:
- If there is no Raw LAR forecast over the period reported:
- Forecast:
- 10 PoE forecast is shown;
- 50 PoE is not shown; and
- shown as blank for feeders not normally supplying load.
- Rating:
- NCC rating is shown; and
- ECC and 2HEC ratings are not shown.
-
Transfers:
- If there is forecast Raw LAR in any year over the period reported:
- Forecast:
- 10 PoE is shown in all years; and
- 50 PoE is shown in years when Raw LAR is forecast and shown as blank in years where no Raw LAR is forecast.
- Rating:
-
NCC is shown in all years; and
ECC and 2HEC are shown in years when Raw LAR is forecast and shown as blank in years where no Raw LAR is forecast.
- Transfers – Auto, Remote and Manual:
- where available, details are provided in years where Raw LAR is forecast and shown as blank in years where no Raw LAR is forecast.
- Load at Risk:
- where available, details are provided in years where Raw LAR is forecast and shown as blank in years where no Raw LAR is forecast.
For further information, please refer to Appendix F of Energex Distribution Annual Planning Report.