No essay on ZESCO would be complete without addressing the human factor. Despite being a cash-rich utility in theory, ZESCO has frequently faced financial insolvency. The narrative here is one of systemic inefficiency. High technical losses (aging infrastructure), commercial losses (illegal connections and meter tampering), and a politically sensitive tariff structure have crippled the corporation. Governments have historically resisted raising electricity prices to reflect true costs, fearing public backlash. Consequently, ZESCO often operates at a loss, unable to invest in maintenance or diversification (such as solar or wind). This has led to accusations of a "revolving door" of debt, where the utility survives on government bailouts rather than sound business principles.
Despite its domestic troubles, ZESCO plays a crucial role in the Southern African Power Pool (SAPP). It is a net exporter, and the stability of regional industry often depends on Zambian electrons. This creates a complex dynamic: when Zambia hoards power for its own citizens, it breaks regional contracts; when it exports, locals accuse the utility of selling their light to foreigners. ZESCO’s management of this balancing act defines its reputation as either a responsible steward or a greedy monopolist. No essay on ZESCO would be complete without
The defining characteristic of ZESCO is its overwhelming dependence on hydroelectric power (over 80% of its capacity). While this reliance on renewable energy positions Zambia as a "green" producer on paper, it introduces a catastrophic vulnerability: the weather. When the rains are good, ZESCO produces a surplus, exporting power to neighbors like the DRC, Zimbabwe, and Namibia. However, in years of drought—most notably from 2019 to 2022—water levels at Kariba plummet. This has led to accusations of a "revolving