Across South Africa, businesses are feeling the strain of rising energy costs and unreliable electricity supply. Whether you are a manufacturer, retailer, or agricultural producer, energy is central to keeping operations running, and its growing unpredictability poses a real threat to profitability and growth.

At the same time, the country is undergoing a fundamental energy transition. While this shift toward renewable power holds long-term promise, the short-term landscape is challenging. Electricity tariffs have increased sharply, grid constraints are intensifying, and unplanned outages remain a daily operational risk.

Understanding what is driving these changes, and how to respond, can help businesses take back control of their energy future.

The Drivers Behind Rising Energy Costs

Over the past decade, South African businesses have experienced above-inflation electricity tariff increases as Eskom and municipalities attempt to recover the costs of an aging grid, rising input expenses, and historical inefficiencies. In 2024, tariffs rose by nearly 13%, and further hikes are expected in the coming years. For many businesses, electricity is now one of the fastest-growing operational expenses, eroding margins quickly. Furthermore, decades of underinvestment in transmission and distribution infrastructure have led to growing inefficiencies and maintenance costs. Eskom has had to allocate significant resources to repairing breakdown-prone plants and upgrading transmission lines, with expenses ultimately passed on to consumers.

Although South Africa’s grid electricity is primarily coal-based, fuel price volatility still plays a role in overall energy costs. As global oil and coal prices fluctuate, Eskom’s generation costs increase. The impact of the carbon tax, rising transport costs, and the need to import diesel for open-cycle gas turbines during peak demand further compound the issue. These factors directly translate into higher tariffs and surcharges for end users.

The Hidden Cost of Supply Uncertainty

Load-shedding is the most visible symptom of South Africa’s energy challenge, but it is far from the only one. Businesses are also contending with unplanned outages, voltage fluctuations, and supply quality issues that can disrupt operations in ways that are harder to predict or measure.

Sudden, unplanned outages can halt production, damage equipment, and interrupt service delivery. For energy-intensive operations like cold storage, manufacturing, or retail, even short outages can mean product losses and costly restarts.

Erratic supply, particularly voltage dips or surges, can damage sensitive equipment, affect product quality, and reduce the lifespan of machinery. Over time, these hidden costs add up, leading to greater maintenance expenditure and operational inefficiency.

Unreliable energy supply makes it difficult for businesses to plan growth or expansion. Production schedules, supply chain logistics, and employee productivity are all affected. This uncertainty can discourage investment, reduce confidence, and stifle innovation.

In short, energy insecurity is not just a technical problem; it is a strategic one. It affects a company’s ability to compete, plan, and thrive.

What Businesses Can Do About It

The good news is that there are clear, practical steps businesses can take today to regain control of their energy costs and resilience. South Africa’s regulatory landscape has evolved rapidly, opening up opportunities for private generation, energy wheeling, and embedded energy solutions that were previously out of reach.

Here is where to start:

1. Understand Your Energy Profile

Before making changes, businesses need visibility. Conducting an energy audit or load assessment helps identify where electricity is being used, when peak demand occurs, and where inefficiencies exist. This forms the foundation for any energy strategy, whether you are aiming to reduce consumption, improve reliability, or invest in your own power supply.

2. Invest in Embedded Generation (for businesses with less than 1MW demand)

Embedded generation, such as rooftop or on-site solar PV systems, allows businesses to generate part of their own electricity directly at their premises. By doing so, companies can reduce reliance on Eskom or municipal grids, mitigate tariff increases, and ensure supply during outages when paired with battery storage systems (BESS). For many businesses, these systems deliver immediate cost savings, with payback periods that have shortened significantly due to technological advances and rising grid tariffs.

3. Explore Energy Wheeling Opportunities

For larger energy users, or businesses operating from leased facilities or multiple sites, energy wheeling offers a flexible and scalable solution. Wheeling allows a business to buy renewable energy generated elsewhere and delivered through the national grid to its operations. SOLA has been at the forefront of implementing wheeling in South Africa, pioneering Africa’s first multi-buyer solar wheeling project. This model enables companies to secure long-term access to clean, cost-effective energy without needing to own or maintain the generation infrastructure themselves.

Wheeling not only stabilises costs but also reduces exposure to future grid price increases and improves sustainability performance, a growing priority for investors and consumers alike.

4. Incorporate Battery Energy Storage Systems (BESS)

Battery storage is revolutionising how businesses manage power. By storing energy during low-cost periods or from renewable sources and using it during outages or peak demand, BESS improves reliability and cost control. SOLA’s existing and upcoming BESS projects are designed to help businesses integrate storage solutions into their energy mix, offering both standalone and combined solar-plus-storage systems that stabilise supply and support grid flexibility.

5. Adopt an Energy Procurement Strategy

Just as companies manage risk through financial hedging or diversified suppliers, energy procurement can be optimised strategically. Through Power Purchase Agreements (PPAs), businesses can lock in predictable electricity rates, shield themselves from tariff volatility, and meet sustainability targets simultaneously.

How SOLA Can Help

With almost two decades of experience in renewable energy development, construction, and operation, SOLA has helped leading corporations like Sibanye-Stillwater, Amazon Web Services, Vodacom and many more, transition toward cost-stable, reliable energy. Our track record includes developing and operating some of Africa’s most innovative renewable energy projects, including the first multi-buyer solar wheeling plant, demonstrating our ability to deliver both technical excellence and strategic value.

Whether you are looking to reduce operational risk, improve your bottom line, or meet your sustainability goals, SOLA can help design a tailored solution that fits your business’s unique needs and ambitions.

To learn more, visit our Buy Energy page today.