The following schedule will be enacted ONLY in an emergency situation where Eskom cannot meet the national demand from customers. This is most likely to occur in high demand periods between 17:00 & 21:00 during weekdays and when there are unexpected faults on the generation network. Every effort is being taken to prevent this occurrence, however, should the need arise, customers will be switched off according to the following schedule until the network is stabilised.
Load-shedding becomes necessary when the national electrical demand on the network is greater than Eskom’s capacity to supply. It is critically important to keep the demand below the national supply capacity. It is therefore imperative that load forecasting is done in conjunction with a host of other criteria that will affect hourly load projections and balance this with the available supply capacity. This function is done by Eskom’s National Control Centre which monitors this dynamic 24/7 and issues instructions to maintenance crews, planners, strategists, large industrial customers and various other personnel to maintain this balance. Only as a last resort and when every other attempt to balance the supply and demand has failed, will load-shedding be introduced to prevent a national grid collapse which could take days to restore. Load-shedding is an urgent response to an emergency, hence advanced notice is not possible.
EThekwini Load-shedding schedules are drawn up in accordance with the national guideline document (NRS 048-9) with specific consideration to technical constraints, practicality and sensitivity to local economic impact. The schedule comprises of Stage 1, Stage 2 and Stage 3 emergencies, with Stage 1 being largely residential and commercial load, Stage 2 includes Stage 1 and industrial load, and Stage 3 which includes the entire of Durban with the exclusion of strategic national resources.
All Blocks are scheduled for a 2 hour outage with an additional half an hour contingency to cater for switching. Customers are only scheduled to go off once a day under Stages 1 & 2 and twice daily should a Stage 3 emergency be declared. Every effort will be made to follow the schedule but it must be recognised that we may incur technical difficulties in restoring load and should a customer remain off for a substantial amount of time after the Block has been scheduled to be restored, then that incident must be treated as a fault and reported accordingly.
During load-shedding we urge customers to switch off high-demand appliances like geysers, stoves, air-conditioning etc. so as to ensure that the waiting load at the time of restoration is not high. High waiting loads can result in a protection trip of individual circuits which will require staff to be dispatched to the point of supply and therefore will result in an extended outage time for all customers on that circuit.
Load-shedding is ONLY implemented under an extreme emergency and sustained load-shedding over sequential days is unlikely, hence customers that are switched off can expect to only experience a single or at the worst case a few incidents of load-shedding a year.
EThekwini Electricity urges all customers to assist in reducing the electricity demand by turning off all non-essential equipment at all times.
Use ONLY what you need
Power Alert Messages
Power Alert messages will be flighted on television. The alerts have four status levels; green, orange, red and brown.
Green - indicates limited strain on the national supply.
Orange - indicates an electricity strain consumers are prompted to switch off non-essential appliances such as tumble dryers and dishwashers.
Red - indicates an increased strain on the power supply with consumers prompted to switch off stoves, microwaves, kettles and unnecessary lights.
Brown - indicates significant strain & that load-shedding is in progress in parts of the country - consumers are asked to switch off everything that is not absolutely essential, including geysers.