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Load Shedding Principles

Load Shedding Principles. Geoffrey Francis 8 April 2010 2010 ESI. Load Shedding Principles.

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Load Shedding Principles

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  1. Load Shedding Principles Geoffrey Francis 8 April 2010 2010 ESI

  2. Load Shedding Principles The current outlook for the supply situation for the duration of the FWC is that there is adequate supply to meet demand and reserve requirements, considering normal, “planned for” generation availability. If plant failures occur significantly beyond this, and all other mitigation has been activated, the only remaining option is manual load shedding. It must be noted, that this will only be used as a last resort, and will be considered to be in an emergency state. Key Principles In order to reduce the likelihood of errors and confusion, one load shedding schedule is suggested for the duration of the FWC. This will serve as a tool to deal with supply demand imbalances as well as regional constraints should they arise. All role players will be required to load shed, according to existing regional allocations. Eskom will request the municipalities and host cities to shed load as is currently done, and it will be responsibility of the municipality to ensure critical load is protected or moved out of critical time periods.

  3. Load Shedding Principles Key Principles (cont) 5. This implies that on any given day, including local match days, load shedding will still occur in the region. Load shedding schedules should be structured such that critical infrastructure is protected as follows: It is suggested that the following load be protected all the time: Stadia and immediate precincts Fan parks Major transport hubs (airports, Gautrain, park & Rides During appropriate time periods, the PVAs should be protected (At this time this specifically refers to the SABC PVAs). 6. It is the responsibility of the base camps to ensure they are adequately protected from the impact of load shedding. 7. If Eskom is the supplier, the Dx region should engage with the entity to ensure backup generation capacity exists.

  4. Load Shedding Action items: 1) Dx regions to align schedules to ensure where Eskom supplies critical infrastructure it is protected as in point 5 above. (EDNO) Western, Eastern, Southern, Polokwane, Nelspruit (Done). Other sites due 9 April 2010. Central continuing with 4hr load blocks. 2) Dx to engage with Host Cities and other municipalities to obtain buy-in with the above principles. Only Rustenburg and Tshwane outstanding. Committed to 9 April 2010.

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