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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Describe power dispatch under deregulation on the electrical interconnected power system 
SAQA US ID UNIT STANDARD TITLE
242759  Describe power dispatch under deregulation on the electrical interconnected power system 
ORIGINATOR
SGB Power Plant Operations 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Engineering and Related Design 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 5  Level TBA: Pre-2009 was L5  4 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
Persons credited with this unit standard is able to explain factors which must be considered when dispatching energy and ancillary services under competitive market conditions. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
It is assumed that learners are already competent in:
  • Communication and Mathematical Literacy at NQF Level 4.
  • Electrical and Mechanical understanding at NQF Level 4. 
    		•

    UNIT STANDARD RANGE 
    N/A 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Describe competitive market transactions. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Tasks of the Independent System Operator (ISO) or other system operating authority are described within the applied environment. 

    ASSESSMENT CRITERION 2 
    Composition of the total power flow throughout the ISO system at any hour of the day is explained according to requirements. 

    ASSESSMENT CRITERION 3 
    Different types of power flow transactions are described within the applied environment. 

    ASSESSMENT CRITERION 4 
    Contracted and non-contracted power flows are described within the applied environment. 

    ASSESSMENT CRITERION 5 
    Power flows into and out of the system are described within the applied environment. 

    SPECIFIC OUTCOME 2 
    Describe generation scheduling and ancillary services. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Preparation of generation schedule and demand schedule are described within the applied environment. 

    ASSESSMENT CRITERION 2 
    Generation to meet contract demand is explained according to operational requirements. 

    ASSESSMENT CRITERION 3 
    Run units for technical reasons are described according to demand requirements. 
    ASSESSMENT CRITERION RANGE 
    Hydro, nuclear, and co-generation units.
     

    ASSESSMENT CRITERION 4 
    Selection of generation to meet non-contracted power demand is explained according to demand requirements. 
    ASSESSMENT CRITERION RANGE 
    Spot market, or residual market.
     

    ASSESSMENT CRITERION 5 
    The generation bid process is described within local power demand conditions. 

    ASSESSMENT CRITERION 6 
    The least cost dispatch program is explained according to demand requirements. 
    ASSESSMENT CRITERION RANGE 
    For different hours of the day determined.
     

    ASSESSMENT CRITERION 7 
    Market clearance price is explained according to demand requirements. 
    ASSESSMENT CRITERION RANGE 
    For each hour of the following day determined.
     

    ASSESSMENT CRITERION 8 
    Dispatch of individual generating units is described as applicable to local environment. 

    ASSESSMENT CRITERION 9 
    Load flow study to identify congestion areas and other transmission system problems are performed as applicable to local environment. 

    ASSESSMENT CRITERION 10 
    Adjustment of next day schedule to produce the constrained schedule, allowing for transmission limitations are explained according to demand requirements. 

    ASSESSMENT CRITERION 11 
    Scheduling of ancillary services is determined according to demand requirements. 
    ASSESSMENT CRITERION RANGE 
    Regulating capacity, operating reserve capacity, standby capacity reserve, supply of reactive power, and black-start capability.
     

    SPECIFIC OUTCOME 3 
    Explain real time dispatch. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The task of real time dispatch is explained within the South African environment. 

    ASSESSMENT CRITERION 2 
    Dispatch communications between participants are explained within local environment. 

    ASSESSMENT CRITERION 3 
    Real time adjustment to scheduled energy and ancillary services to meet changing conditions and imbalance between scheduled demand and supply are explained according to requirements. 

    ASSESSMENT CRITERION 4 
    Schedule updating through activation of the "least cost dispatch program" is explained according to requirements. 

    ASSESSMENT CRITERION 5 
    "After-the-fact" reporting to provide each participant with actual operating parameters and provisional energy prices for each settlement period is explained according to requirements. 

    SPECIFIC OUTCOME 4 
    Describe dispatch under emergency conditions. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Systems operators activities under emergency operating conditions are explained according to demand requirements. 

    ASSESSMENT CRITERION 2 
    Conditions related to a system alert, system warning, and system emergency are described according to demand requirements. 

    ASSESSMENT CRITERION 3 
    Suspension of commercial market activity by the ISO during major system collapse is described within local environment. 

    ASSESSMENT CRITERION 4 
    Load curtailment and load shedding procedures are described within local environment. 

    ASSESSMENT CRITERION 5 
    Advantages and obligations related to interconnection with other control areas and IS0s are described according to requirements. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner or moderating the assessment of a learner against this unit standard must be registered as an assessor with the relevant Education, Training, Quality, Assurance (ETQA) Body, or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Any institution offering learning that will enable the achievement of this unit standard must be accredited as a provider with the relevant Education, Training, Quality, Assurance (ETQA) Body, or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Assessment and moderation of assessment will be overseen by the relevant Education, Training, Quality, Assurance (ETQA) Body, or by an ETQA that has a Memorandum of Understanding with the relevant ETQA, according to the ETQA's.
  • Moderation must include both internal and external moderation of assessments at exit points of the unit standard, unless ETQA policies specify otherwise. Moderation should also encompass achievement of the competence described both in the Unit Standard.
  • Anyone wishing to be assessed against this unit standard may apply to be assessed by any assessment agency, assessor or provider institution that is accredited by the relevant ETQA. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Knowledge of power dispatch under deregulation on the electrical interconnected power system. 

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identifying & solving problems in which responses display that responsible decisions using critical and creative thinking have been made. 

    UNIT STANDARD CCFO COLLECTING 
    Collecting, analysing, organizing and critically evaluating information. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicating effectively using visual, mathematical and/or language skills in the modes of oral and/or written persuasion. 

    UNIT STANDARD CCFO SCIENCE 
    Using science and technology effectively and critically, showing responsibility towards the environment and health of others. 

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrating an understanding of the world as a set of related systems by recognizing that problem-solving contexts do not exist in isolation. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    N/A 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  57693   National Diploma: Electrical Network Power Dispatch Controlling  Level 5  NQF Level 05  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  EWSETA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 


    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.