Load shedding is a national measure implemented by Eskom when the electricity grid is under pressure due to high demand and insufficient capacity to generate power. On the other hand, load reduction is a more focused or is targeted on the local areas with excessive electricity usage, particularly those with illegal connections. By implementing these measures, municipalities can work towards reducing strain on the electricity network and promoting fair usage among residents.
Illegal electricity connections, meter tampering, theft, and vandalism are all factors that contribute to the strain on the electricity network. Those who are illegally connected to the network in most cases do not pay for the electricity they consume, which then contributes to a financial burden on honest residents who do pay for their electricity usage. The areas where these illegal practices occur are those that tend to be the highest consumers of electricity, which then puts further strain on the infrastructure and electricity grid.
As a result of these illegal activities, the electricity power grid struggles to meet the demand, leading to potential damage to equipment that is costly to repair or replace. To address this issue, the city has outlined various measures that can be taken, such as load shedding, load reduction, and load limiting. Each of these measures serves a different purpose in managing electricity demand and protecting the grid from a total collapse.
What is Load Reduction
Eskom recently announced the initiation of load reduction in seven provinces, raising concerns about the return of scheduled power outages in South Africa. Despite this, Eskom clarified that load reduction differs from the usual load shedding, as the improved energy capacity at their power stations can effectively meet the national demand. In most cases, load reduction primarily affects specific areas with damaged or overloaded infrastructure that struggle to accommodate the increased electricity demand, particularly in high-risk regions. The colder weather conditions experienced in the various provinces in the country such as such as, Limpopo, Western Cape, Eastern Cape, Gauteng, Mpumalanga, KwaZulu-Natal, and North West have resulted in Eskom implementing load reduction across the affected areas. In addition, weather-related demand spikes, criminal activities, and infrastructure are high possibilities that could result in the implementation of load reduction. While some regions may be experiencing power cuts due to load reduction for the first time, the City of Johannesburg has implemented such measures for over a month to manage excessive electricity consumption.
What to expect
Load Management
Load management involves controlling the amount of electricity consumed by a household by adjusting the maximum current allowed from 60amps to a minimum of 10amps. This practice is typically carried out on a smaller scale, focusing on specific neighborhoods or complexes where required. By doing so, households can still power essential appliances like lights, refrigerators, televisions, routers, and even small kitchen appliances such as microwaves or kettles, similar to the functionality of a 5kva inverter.
Agreement-Based Implementation
Load limiting is established through formal agreements signed between power utilities (such as Eskom or City Power), businesses, Large Power Users (LPUs), and critical services like hospitals and water boards. These agreements entail businesses reducing their electricity consumption for short periods during peak hours to reduce the strain on the grid without resorting to load reduction or load shedding. This approach is only enforced in areas where such agreements are in place to ensure efficient energy management.
Peak Hour Management
Peak hours, as identified by Eskom and the City of Johannesburg, are the most common times for load reduction, limiting, and curtailment. These peak hours typically occur from 05h00 to 07h00 in the morning and 17h00 to 19h00 in the evening when households are most active and require electricity for various activities. To meet the demands of specific regions, electricity infrastructure is designed to handle loads equal to the demand, with load shedding following a pre-schedule to manage electricity consumption effectively across different blocks and regions throughout the day.
