The Impact of South Africa’s Electricity Pricing Adjusted: What U.S. Readers Need to Know

In a move that echoes recent debates in the U.S. over energy pricing, the National Energy Regulator of South Africa (Nersa) has approved several significant electricity pricing adjustments to Eskom’s retail tariff plan (RTP). While U.S. readers might recognize similar issues in their own energy regulat**ion**s, such as those affecting the Texas power grids. This change will increase the electricity bills for homes with low to moderate electricity consumption from 1 April 2025, due to higher fixed charges.

At the same time, those that Eskom considers average and above-average users will see a reduction in their bills. There is an interesting comparison with the price adjustments presented by Texas energy providers, where variable pricing is evident but still poses a lower challenge than the proposed South African adjustments. Nersa approved several of the changes Eskom requested under the RTP, which Eskom has submitted on several occasions in the past few years. The approved adjustments included so called “cost-reflective” residential tariffs with higher fixed charges, independent of consumption.

Among the major adjustments is the approval of “cost-reflective” residential tariffs with higher fixed charges independent of consumption. This includes the introduction of a fixed Generation Capacity Charge (GCC) levied per day and per Eskom point of delivery (POD).

The Buy More, Pay Less Strategy

Another major adjustment is the removal of the Inclining Block Tariff (IBT) structure. Eskom maintained that the “average” user would pay less for electricity as the savings in energy charges achieved through the IBT scrapping would offset the impact of the higher fixed charges. However, Eskom has repeatedly failed to disclose its methodology for determining the average usage.

Just as we recognize the delicate balance in the IBT, U.S. readers might recall the similar **choice** with time-of-use (TOU) electricity rates in states like California, where electricity prices can vary based on the time of day. This adjustment was done with the aim of linking pricing to actual cost structures, a path taken from previous debates in the U.S. For example, in regions like Texas, failures in the electrical supply during massive cold weather spells showcased the broader coping strategy similar to what is being planned for South Africa.

PowerNSun has estimated that the average residential electricity consumption is around 450kWh for urban customers, which generally have fairly high electricity usage. According to, a customer on the most common, Hompower 4 tariff, would have to consume at least 764kWh per month to offset the impact of the fixed charge and benefit from lower energy charges.

”Therefore, the allocation towards the fixed charges must be reduced to 20% of its current level in year 1 and 30% of the proposed level in years 2 and 3,” Nersa said.

An Analysis of the Adjustments

The first year with the changes will be Eskom’s next financial year, starting from 1 April, 2025. Nersa argued that this approach would result in a “minimal” immediate impact on low-usage consumers, while increases in the GCC in subsequent years would not exceed inflation, aligning with economics norms.

Eskom also wants to add a new service and admin charge working out to R261.60 per month for all Homepower and Homeflex customers. While a series and the severness of strict adjustments unintendedly delivers an unintentional protectionist nature to the power consumers intending to shift to cheap electricity adopters, they keep surprising with their drafting mechanisms. That ensures users keep consuming within their bounds, maintaining a fair and balanced power usage ecosystem, with higher fines levied for breaches.

Global Perspective on Power Usage Adjustments

Previous Eskom attempts focused on containing higher power consumers rather than burdening the poor consumers, balancing the surge in electricity bills with the careful phasing in of charges. While following increasingly challenging electricity regulations, Eskom has carefully looked at residents and PODs carefully, drawing inspiration from states like Idaho, where certain energy rates have resulted in massive hikes costing hundreds of millions of dollars, thus causing year-long outages.