Eskom Diesel Savings – In a move that signals a major shift in South Africa’s energy landscape, Eskom has slashed its diesel usage by an impressive 50% in October 2025 compared to the same period last year. This sharp reduction translates into R16 billion in savings — a significant relief for the state utility battling operational and financial pressures. But beyond the corporate balance sheet, what does this really mean for you, the average South African electricity consumer? This bold reduction forms part of Eskom’s broader strategy to reduce reliance on costly diesel-powered Open Cycle Gas Turbines (OCGTs), which are traditionally used to stabilize the grid during high-demand periods or supply shortages. The utility’s improved energy availability from coal, solar, and wind generation has played a key role in reducing the need for emergency diesel use. With load shedding already tapering off over the past few months and energy generation becoming more cost-effective, many are wondering: will we finally see relief in our monthly electricity bills? How will Eskom redirect these diesel savings, and can consumers expect a more stable power supply going forward? Let’s unpack what this landmark development means for the future of electricity in South Africa.
Eskom Diesel Savings Strategy in October 2025
In October 2025, Eskom implemented strategic measures to cut down diesel use by half, reshaping its energy generation model.
- Diesel consumption dropped by 50% compared to October 2024.
- A total of R16 billion in savings was recorded for the month.
- Less reliance on OCGTs due to improved grid stability.
- Renewables and coal generation saw better performance metrics.
- Diesel usage was restricted mainly to peak-demand hours.
Key Metrics: Diesel Consumption – 2024 vs 2025
| Metric | Oct 2024 | Oct 2025 | % Change |
|---|---|---|---|
| Diesel Usage (litres) | 300 million | 150 million | -50% |
| OCGT Operational Hours | 380 hours | 195 hours | -48.7% |
| Diesel Spend | R32 billion | R16 billion | -50% |
| Average Cost per kWh (diesel) | R5.20 | R5.10 | -1.9% |
| Energy Availability Factor | 57% | 68% | +11% |
| Load Shedding Days | 17 days | 6 days | -64.7% |
| Renewable Contribution | 23% | 29% | +6% |
How These Eskom Diesel Savings Will Impact Consumers
The R16 billion saved on diesel will have wide-ranging effects on electricity tariffs, maintenance budgets, and grid reliability.
- Lower generation costs may ease pressure on future electricity price hikes.
- Additional funds can be redirected to infrastructure upgrades and maintenance.
- Reduced reliance on diesel may stabilize tariffs by reducing volatility.
- Consumers may see fewer unplanned outages as the grid becomes more efficient.
Potential Uses for Diesel Savings
| Use Case | Estimated Allocation | Expected Benefit |
|---|---|---|
| Grid Infrastructure Upgrades | R6 billion | Enhanced reliability |
| Renewable Energy Expansion | R3 billion | Long-term cost reduction |
| Debt Repayment | R2 billion | Improved credit rating for Eskom |
| Maintenance and Repairs | R2.5 billion | Extended lifespan of coal stations |
| Load Shedding Mitigation Tools | R1 billion | Backup systems & battery storage |
| Consumer Subsidies/Pricing Fund | R1.5 billion | Cushioning tariff increases |
Eskom’s Renewed Focus on Grid Stability
With diesel now taking a back seat, Eskom’s focus is shifting toward long-term sustainability and grid modernization.
- Energy availability factor (EAF) improved by 11% from last year.
- More consistent output from solar, wind, and hydro sources.
- Coal fleet showed a modest improvement in output and reliability.
EAF Performance by Generation Type
| Generation Type | EAF Oct 2024 | EAF Oct 2025 | % Change |
|---|---|---|---|
| Coal | 55% | 61% | +6% |
| Nuclear | 85% | 89% | +4% |
| Wind | 42% | 50% | +8% |
| Solar PV | 38% | 46% | +8% |
| Hydro | 72% | 75% | +3% |
Load Shedding Relief: What the Numbers Say
Thanks to improved planning and reduced diesel dependency, South Africans have enjoyed a noticeable drop in load shedding hours.
- 64.7% decrease in days affected by load shedding in October 2025.
- Most affected regions like Gauteng and Eastern Cape saw major relief.
- Reduced diesel reliance also led to fewer short-notice Stage 4+ alerts.
Load Shedding Days by Province – Oct 2024 vs Oct 2025
| Province | Oct 2024 | Oct 2025 | Difference |
|---|---|---|---|
| Gauteng | 16 | 5 | -11 days |
| Western Cape | 13 | 4 | -9 days |
| Eastern Cape | 17 | 6 | -11 days |
| KwaZulu-Natal | 14 | 5 | -9 days |
| Free State | 11 | 3 | -8 days |
| Limpopo | 12 | 5 | -7 days |
| North West | 10 | 2 | -8 days |
What Consumers Are Saying
Recent surveys suggest a positive shift in public sentiment around Eskom’s performance.
- 62% of respondents reported fewer blackouts in October 2025.
- 48% said their monthly electricity costs were slightly lower.
- 71% support more renewables if it keeps diesel use low.
Can Consumers Expect Tariff Reductions?
Tariff structures are regulated by NERSA and are influenced by Eskom’s cost base. While a direct decrease may not happen overnight, the reduction in diesel use sets a promising tone.
- Current pricing structures are based on projected diesel usage.
- With OCGTs running less, future forecasts may allow for lighter increases.
- Government may consider using diesel savings to offset tariff escalations.
Electricity Tariff Forecast (2025-2027)
| Year | Projected Increase (Before Diesel Cut) | Adjusted Projection (Post Diesel Cut) |
|---|---|---|
| 2025 | 12.74% | 9.20% |
| 2026 | 10.00% | 6.50% |
| 2027 | 8.50% | 5.25% |
What Needs to Happen Next?
While this milestone is worth celebrating, sustained progress depends on several actions by Eskom, government, and independent energy producers.
Key Focus Areas for 2025–2026
| Priority Area | Stakeholder | Expected Outcome |
|---|---|---|
| Coal Station Refurbishment | Eskom | Increase base load generation |
| IPP Procurement Acceleration | Government | Add 3,000 MW from renewables |
| Energy Storage Investments | Eskom + Private | Improve peak-hour stability |
| Tariff Transparency | NERSA | Clearer pricing for consumers |
| Transmission Grid Expansion | Eskom | Reach rural and high-demand zones |
| Demand Side Management Campaigns | DOE + Municipalities | Promote energy efficiency |
Public Awareness and Consumer Role
Consumers can also help solidify progress by making mindful energy choices.
- Shift high-use activities to off-peak hours.
- Install solar or inverter backups where feasible.
- Monitor Eskom updates and adjust usage accordingly.
Long-Term Sustainability Outlook
If the current trend continues, Eskom may be able to phase out diesel entirely over the next 3–5 years, transforming both the environment and the economic load on citizens.
- Improved energy mix reduces carbon emissions.
- Operational savings can be reinvested in long-term grid solutions.
- Public-private partnerships will become increasingly vital.
The Environmental Perspective
Environmental groups have lauded the diesel cut as a meaningful climate win.
- 50% diesel cut equates to approx. 2.1 million tons CO2 reduction.
- Encourages shift away from fossil fuels.
- Aligns with South Africa’s COP commitments.
Summary Table: Eskom’s Diesel Savings Impact
| Impact Area | Description | Beneficiary |
|---|---|---|
| Cost Savings | R16 billion saved in October 2025 | Eskom + Consumers |
| Grid Reliability | Fewer OCGT hours, more renewables | All regions |
| Tariff Outlook | Projected increases now lower | Consumers |
| Load Shedding Reduction | 64.7% fewer blackout days | Households & Biz |
| Infrastructure Reinvestment | Funds redirected to critical upgrades | Eskom operations |
| Emissions Cut | Over 2 million tons CO2 saved | Environment |
With R16 billion in diesel savings already showing positive ripple effects, Eskom’s October 2025 performance provides a hopeful glimpse into a more stable and affordable energy future for all South Africans. While it’s too soon to declare victory, this marks a significant step forward in the country’s ongoing energy recovery.
Frequently Asked Questions (FAQs)
Q1: Will my electricity bill go down immediately due to this diesel savings?
A: Not immediately. Tariff changes require regulatory approvals and planning cycles, but the savings can help slow future increases.
Q2: Why did Eskom rely so much on diesel in the first place?
A: Diesel generators are used during emergencies or demand spikes. Poor maintenance and breakdowns in past years led to heavy reliance on them.
Q3: How does diesel usage affect the cost of electricity?
A: Diesel is significantly more expensive per kWh than coal or renewables, so high diesel use raises generation costs and influences tariffs.
Q4: Is Eskom planning to eliminate diesel completely?
A: That’s the long-term goal. With more reliable generation from other sources, Eskom can gradually phase out emergency diesel use.
Q5: What can I do to lower my own electricity usage and bills?
A: Use energy-efficient appliances, install solar panels, and shift heavy usage to non-peak hours where possible.