South African Utility Eskom Faces Revenue Spiral as Tariffs Surge 1,000 Percent Over Fifteen Years

Eskom faces a revenue spiral as electricity production drops to 20 year lows while costs soar, forcing South African businesses to pivot to solar.

By: AXL Media

Published: Apr 16, 2026, 4:22 AM EDT

Source: Information for this report was sourced from Daily Investor

The Economic Paradox of Declining Output and Rising Costs

The South African power utility Eskom is currently navigating a precarious financial spiral characterized by diminishing production and unprecedented tariff hikes. According to data provided by Symmetry chief investment strategist Izak Odendaal, the utility is generating less electricity today than it did twenty years ago, yet it is charging more for its product than at any point in its history. This dynamic has forced a wide spectrum of the population to seek alternative energy solutions, with affluent households and businesses pivoting to rooftop solar while lower income individuals resort to gas, wood, or paraffin. This migration has created a hollowed out customer base, leaving the utility increasingly dependent on smaller, less reliable payers to cover its massive operational overhead.

Private Sector Expansion Erodes Traditional Utility Dominance

The rapid decline in Eskom’s market share is largely attributed to a 2022 policy shift that allowed private companies to generate unlimited electricity. Odendaal noted that this change has been spectacularly successful, attracting hundreds of billions of rands in new generation projects, primarily in the wind and solar sectors. As these private entities come online, they have effectively siphoned off Eskom’s most reliable clients, including large scale industrial users who were previously the utility's primary source of steady revenue. Consequently, the state owned entity finds itself trapped in a feedback loop where it must raise prices to compensate for lost volume, which in turn accelerates the departure of its remaining high value customers.

The Financial Burden of Massive Debt and Primary Energy

Electricity Minister Kgosientsho Ramokgopa recently highlighted the staggering inflation of energy costs, noting that tariffs have surged by nearly 1,000 percent over the last fifteen years. While the cost of coal accounts for approximately 45 percent of the final tariff, the remainder is driven by Eskom’s massive debt servicing requirements and a decade of systemic mismanagement. According to Ramokgopa, these price increases have significantly outpaced national inflation, placing a heavy burden on industrial activity. Although coal fired plants are currently operating with higher reliability than in previous years, the sheer cost of maintaining the agi...