By Louis Strydom
Last year, I argued in my piece “Lean Carbon, Just Power”, that a limited and temporary increase in African carbon emissions is justified to meet the continent’s urgent electrification needs.
That position was not a retreat from climate ambition. It laid out a credible lean-carbon pathway that reconciles power systems development realities with climate arithmetic.
The central question remains: not whether emissions must fall, but how much temporary headroom is tolerable to accelerate energy prosperity for a continent responsible for roughly 4% of global CO2.
The flexibility equation
The future of Africa’s electrification is neither “all renewables tomorrow” nor “gas indefinitely”. Intermittent renewables alone cannot power the continent’s fragile grids at scale. Solar and wind require highly dispatchable power capacity to ensure the reliability of the system.
The real choice is not between renewables and fossil fuels in the abstract; it is between flexible firm power that complements solar and wind, and the de facto alternative: the increasing reliance on high-emissions diesel backup and widespread grid instability.
I argue that a realistic transition strategy must embrace “a capped carbon overdraft”: a strictly bounded, time-limited deployment of flexible power plants running on gas that supports the deployment of renewables and declines according to a binding schedule. This strategy means accepting minimal, temporary emissions to allow for a faster, cleaner and more resilient clean transition.
The response to this argument drew serious scrutiny. Three objections deserve a direct answer.
First: does the case for flexible thermal power hold on a full life cycle basis?
It does. Our power system studies in Nigeria, Mozambique, and Southern Africa consistently reach the same conclusion - the least-cost long-term system is renewables-led, with flexible engines balancing variability. That holds across capital, fuel, maintenance, carbon pricing, and decommissioning.
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The Precision Transition
