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Navigating the Future: Addressing the Risks of Eskom's Shift to Fixed Costs

Navigating the Future: Addressing the Risks of Eskom's Shift to Fixed Costs

At Augos, we believe in empowering our clients to navigate the complexities of the evolving energy landscape. Eskom's recent proposal to increase its fixed revenue contribution from 10% to 24% through the introduction of a generation capacity charge (GCC) signifies a significant shift in electricity tariffs. This structural change, aimed at stabilizing Eskom’s revenue, introduces new challenges and opportunities for large power users. Here’s how we can approach these changes strategically and effectively.

The Impact of Increased Fixed Charges

Eskom’s plan involves the introduction of fixed costs based on utilised capacity, reducing the variable energy charges that currently dominate electricity bills. Presently, only 10% of Eskom’s revenue is recovered through fixed charges, despite 76% of its costs being fixed(Eskom RTP-2023-detailed…). By increasing the fixed revenue contribution, Eskom aims to mitigate its financial risks. However, this shift presents several challenges for businesses:

1.      Reduced Cost Flexibility:

o   Impact on Operating Costs: Businesses, particularly those with high energy consumption, will encounter increased fixed costs irrespective of their actual energy use. This rigidity can significantly impact operating budgets, making it more challenging to manage costs during periods of reduced production or economic downturns.

o   Fixed Overheads: The increase in fixed costs translates to higher overheads that businesses cannot easily mitigate. This includes times of implementing energy-saving measures or operating during off-peak hours, where substantial fixed charges will still apply, reducing the financial benefits of such initiatives.

2.      Investment and Expansion Constraints:

o   Capital Allocation: With higher fixed costs, businesses may face constraints in investing in expansion or other capital-intensive projects. Resources may need to be reallocated to cover increased utility bills, limiting growth and innovation.

o   Cost Competitiveness: South African businesses might become less competitive compared to international peers who benefit from more variable and consumption-based tariff structures. This could particularly impact industries with narrow profit margins.

Implications for Renewable Energy Projects

The shift to higher fixed costs also affects renewable energy projects:

1.      Reduced Financial Incentives:

o   Investment Payback: Renewable energy projects, such as solar and wind, often rely on savings from reduced electricity bills to justify the investment. Higher fixed costs reduce the financial payback, making these projects less attractive.

o   Cost Recovery: With diminished variable cost savings from self-generated renewable energy, businesses may find it harder to recover initial investments in renewable projects, potentially leading to reduced adoption rates.

2.      Operational and Strategic Challenges:

o   Demand Charges: The introduction of generation capacity charges based on utilised capacity means that even businesses with significant renewable energy installations will face high fixed charges. This diminishes the strategic advantage of generating your own power.

o   Grid Connection: For companies considering partial or full disconnection from the grid, high fixed charges could be a deterrent. Businesses might reconsider such strategic moves if the cost savings are negated by unavoidable fixed costs.

Strategic Considerations for Large Power Users

Given these challenges, large power users must adopt strategic adjustments:

1.      Energy Efficiency and Load Management:

o   Optimising Load Profiles: Invest in technologies and processes that optimise load profiles to minimise peak demand charges.

o   Energy Storage: Implement energy storage solutions to manage load and reduce reliance on grid power during peak times, mitigating some of the impacts of high fixed charges.

o   Targeted Baseload Reduction: Focus on identifying and reducing baseload energy consumption to decrease utilised capacity. This involves upgrading equipment, improving process efficiencies, and adopting smart energy management systems.

2.      Engaging in Policy Advocacy:

o   Active Participation: Engage with regulatory processes to advocate for tariff structures that balance Eskom's revenue needs with fair cost distribution.

o   Collaborative Efforts: Collaborate with industry groups and large power users to propose alternative tariff models that support both Eskom’s stability and businesses' financial health.

3.      Long-term Planning:

o   Scenario Analysis: Conduct detailed scenario analyses to understand the financial implications of different tariff structures and plan accordingly.

o   Diversification: Diversify energy sources, including on-site generation and potentially entering into power purchase agreements (PPAs) with independent power producers (IPPs) to hedge against tariff changes.


Eskom's shift from variable energy charges to fixed costs represents a significant change in the electricity tariff structure, with far-reaching implications for businesses, particularly large power users. While this move aims to stabilize Eskom's revenue, it poses significant risks to business cost structures, investment strategies, and the financial viability of renewable energy projects. At Augos, we are dedicated to guiding our clients through these changes. By adopting proactive strategies and engaging with policymakers, businesses can manage these risks and ensure a balanced and fair tariff system. Let's navigate this new energy landscape together, turning challenges into opportunities for sustainable growth and innovation.