Current Eskom Power System Overview

South Africa's electricity landscape has undergone a remarkable transformation in recent months. As of April 2026, Eskom, the state-owned power utility responsible for generating, transmitting, and distributing about 95% of the country's electricity, reports a stable and resilient power system. This stability is evidenced by over 322 consecutive days without load shedding—planned power outages implemented to balance supply and demand during shortages. The last interruptions occurred briefly in April and May 2025, totaling just 26 hours, marking a stark contrast to the frequent blackouts that plagued the nation for years.

Key performance indicators underscore this progress. The Energy Availability Factor (EAF), which measures the percentage of time generating units are available to produce power, averaged 65.35% for the 2025/26 financial year ending March 31, 2026. This represents a 4.75% improvement year-on-year and a 10.79% gain over two years. Unplanned outages, breakdowns not scheduled for maintenance, averaged 9,879 megawatts (MW) in the week ending April 2, down from 14,067 MW the previous year—a reduction of over 4,000 MW.

These gains stem from the Generation Recovery Plan, a multi-year initiative launched to rehabilitate aging coal-fired power stations, which form the backbone of Eskom's 46,000 MW installed capacity. The plan has prioritized returning units at stations like Kusile and Medupi to service, enhancing overall fleet reliability.

Milestones in Ending Load Shedding

Reaching 300 days without load shedding in March 2026 was a symbolic victory, celebrated as a turning point for energy security. By early April, this streak extended to 322 days, with the power system meeting evening peak demands—typically around 22,000 MW—through ample reserve margins. For instance, on April 3, available capacity stood at 26,855 MW against a forecasted peak of 21,846 MW, leaving nearly 5,000 MW in cold reserve.

This reliability has real-world ripple effects. Businesses operate without interruption, households enjoy uninterrupted power, and economic activity has surged. The absence of load shedding aligns with Eskom's Summer Outlook from September 2025, which accurately predicted no outages through March 2026. Cold reserves, units on standby for emergencies, now exceed 4,000 MW regularly, providing a buffer against unexpected failures.

Behind these numbers lies rigorous execution: weekly returns of capacity totaling thousands of MW, such as 2,385 MW planned for April 6 peaks. This disciplined approach has shifted public perception from despair to cautious optimism.

Improvements in Generation Performance

Eskom's coal fleet, comprising 15 power stations, has seen targeted interventions. The Unplanned Capacity Loss Factor (UCLF), indicating breakdown frequency, dropped to 20.75% year-to-date, from 29.52% last year. Planned maintenance, essential for long-term reliability, averaged 11.42% of capacity, balancing short-term availability with future-proofing.

Stations like Kusile, with its four units now fully operational, exemplify success. Delays in flue gas desulphurization installations once hampered output, but completions have unlocked full potential. Year-to-date, the fleet hit or exceeded 70% EAF on 83 occasions, a frequency unmatched in recent history.

These metrics translate to concrete output: higher baseload generation reduces reliance on expensive open-cycle gas turbines (OCGTs), primarily used for peaking. The result is a more predictable supply chain, critical for industries like mining and manufacturing.

Massive Diesel Cost Reductions

One of the most tangible wins is diesel expenditure slashing. For the 2025/26 financial year, costs totaled R6.4 billion—a 62.46% year-on-year plunge and under budget. Weekly usage in late March to early April generated just 0.40 gigawatt-hours (GWh) at R2.27 million, with OCGT load factors at a low 3.61%.

OCGTs, Eskom's peaker plants at stations like Gourikwa and Ankerlig, burn diesel for rapid starts but at high cost—around R2.27 per kilowatt-hour. Year-to-date, they produced 1,078 GWh, versus 2,838 GWh last year, saving billions. This shift preserves foreign exchange reserves, as diesel imports strain the balance of payments.

Savings enable reinvestment: maintenance, debt servicing, and grid upgrades. Compared to 2022/23 peaks exceeding R26 billion annually, current levels signal fiscal discipline amid government bailouts totaling over R200 billion historically.

Electricity Tariff Increases from April 2026

Amid stability, consumers face an 8.76% tariff hike for Eskom direct customers, effective April 1, 2026, approved by the National Energy Regulator of South Africa (NERSA). Municipalities see 9.01% averages. This funds operations, with fixed charges like service fees rising to cover network costs.

For a typical household on the Homepower tariff, bills could rise R100-200 monthly, depending on usage. Eskom argues necessity: recovering costs from past inefficiencies while investing in renewables integration. Critics highlight profiteering, as sales dip to 179 terawatt-hours—lowest since 2000—yet revenues climb via higher rates and fixed levies.

Eskom's tariff details outline adjustments, emphasizing affordability programs like Free Basic Electricity for 582,000 indigent households.

Photo by Josh Ogden on Unsplash

Winter 2026 Power Supply Forecast

Eskom's Winter Outlook projects no load shedding from April to August 2026. Peak demand surplus of 6 gigawatts (GW) anticipates evening highs around 27,000 MW, with unplanned outages at 12 GW—down from 13 GW last winter. High-risk scenarios cap at 14 GW, still manageable via demand-side management adding 1.1 GW.

Supply reliability hits 98.9% for 2025/26, with 67,578 new grid connections. CEO Dan Marokane credits the platform for economic growth and the 2025 Integrated Resource Plan (IRP), targeting 100% renewables by 2050.

Risks include new build delays; only half of 2019 IRP renewables are online. Repurposing coal stations decisions loom in Q2 2026/27.

Three-Year Wage Deal Secured

In April 2026, Eskom finalized a wage agreement with unions representing 75% of bargaining unit staff: 7% annual increases from July 2026 over three years. The National Union of Mineworkers and Solidarity signed, binding the deal despite NUMSA's 8% demand.

This follows profitability—first full-year profit in eight years—and motivates a workforce key to recovery. Salaries exceed 3-4% inflation, aiding retention amid skills shortages. Reuters on Eskom wage deal.

Stability fosters labor peace, crucial as maintenance ramps up.

Economic and Sectoral Impacts

Reliable power catalyzes growth: GDP rebounded post-2024 slumps tied to outages costing 4-5% annually. Mining output rose 2.5%, manufacturing utilization hit 75%. Retail and services thrive without generators.

• Reduced business costs: Diesel savings alone R26.9 billion vs. 2022/23.
• Investment influx: Confidence draws R1 trillion in energy projects.
• Job creation: 2 million indirect from stability.

Financially, EBITDA up 1.6%, credit upgrade by S&P. Yet, 14 municipalities face cutoffs for R5 billion debts.

Future Challenges and Risks

While 2026 shines, 2029-2030 adequacy risks loom per Medium-Term Outlook. Aging fleet retirements, transmission bottlenecks (14,500 km new lines needed), and renewables delays pose threats.

Debt at R400 billion requires restructuring. Corruption probes, like SIU freezing R765 million, persist.

Transition to Renewables and Private Power

Private embedded generation exceeds 6 GW, easing Eskom's load. IRP 2025 accelerates wind/solar to 40 GW by 2030. Battery storage pilots and wheeling agreements enable consumer participation.

Smart metering rollout (444,000 installed) targets load reduction elimination by 2027, benefiting 1.69 million customers.

Photo by Roger Starnes Sr on Unsplash

Government Support and Long-Term Strategy

President Ramaphosa advances Eskom unbundling: transmission as standalone by 2027. Just Energy Transition Partnership funds R150 billion for green shift.

National Transmission Company SA plans 133,000 MVA transformers. Consumer education expands Free Basic Electricity.

Practical Advice for Consumers

Monitor Eskom updates. Energy-efficient appliances cut bills post-hike. Rooftop solar with batteries hedges risks. Municipal debt payers avoid cutoffs.

• Install inverters for backups.
• Time usage off-peak.
• Apply for rebates if qualifying.

South Africa eyes a load shedding-free future through sustained reforms.