The Price of Being African: How Creditworthiness Became a Geopolitical Tool

There is a figure that should fundamentally alter how the global climate finance conversation is conducted, yet it is rarely placed at its centre.

In Africa's power sector, the average cost of borrowing to build clean energy infrastructure is 15 to 18 percent. While in Europe and the United States, equivalent projects are financed at 2 to 5 per cent. The Columbia Climate School's March 2026 analysis is direct: at these elevated rates, clean energy infrastructure in Africa is simply not financeable. A well-structured solar power purchase agreement in Kenya or Nigeria is not inherently riskier than one in southern Europe, yet the capital market prices it as though it were.

This is the difference between a project that works and one that doesn't. At 3 percent, a solar installation is bankable. At 18 percent, the same project becomes structurally unviable regardless of resource quality, demand certainty, or long-term economic return. The debate about Africa's energy transition, framed so persistently around volumes, pledges, and financing gaps, has been asking the wrong question. The binding constraint is not how much capital exists, but the price at which that capital is deployed.

How creditworthiness produces the wrong outcome

At the centre of this pricing disparity sits a valuation framework that wasn't designed for the energy transition. Creditworthiness, as assessed by global rating agencies and the institutions that rely on their judgments, is built around GDP per capita, sovereign debt ratios, and macroeconomic stability. These are proxies for a country's capacity to service dollar-denominated debt within a global financial architecture constructed around developed-economy assumptions.

They aren't proxies for the quality of a solar resource, the contractual robustness of a power purchase agreement, or the revenue stability of a well-structured independent power producer. As of late 2025, only three of 34 rated African countries held investment-grade status. That classification flows directly into borrowing costs, regardless of the underlying merit of individual energy projects.

The Clean Air Task Force's analysis of the weighted average cost of capital across African countries found an average of 15.6 percent, more than three times the rate available to equivalent projects in Western Europe and the United States. Ghana's WACC reaches as high as 22 percent. The framework can't see what it was not designed to value, and what it fails to value is precisely the transition potential that Africa's energy resources represent.

From financing cost to fossil fuel dependency, how the loop closes

The consequences of this pricing mechanism extend far beyond project pipelines and shape what gets built and what doesn't.

When clean energy can't be financed at a sustainable cost, governments and utilities turn to alternatives that can meet immediate demand. In many African contexts, this means continued reliance on fossil fuel imports; diesel, fuel oil, and liquefied natural gas, priced in dollars and sourced from geopolitically volatile supply chains.

The case of Kenya illustrates the dynamic clearly. Unable to finance its energy transition at a sustainable cost, Kenya entered into a government-to-government fuel supply arrangement with Saudi Arabia. As economist Fadhel Kaboub has observed, every barrel of fuel imported through Mombasa transits the Strait of Hormuz, the same chokepoint that the US-Israel-Iran conflict has now placed under acute geopolitical risk. That arrangement provided short-term stability in fuel availability whilst simultaneously introducing exposure to global oil prices, exchange rate volatility, and geopolitical disruption.

The effects compound. When oil prices rise, fiscal balances deteriorate, when foreign exchange comes under pressure, sovereign risk metrics worsen, and when the next credit rating review occurs, those deteriorations are reflected in higher perceived risk, which raises the cost of clean energy borrowing. High financing costs prevent the transition, and the absence of the transition reproduces the conditions that sustain the high financing costs. The loop closes.

Why volume pledges do not resolve a pricing problem

Much of the global climate finance discourse has been organised around volume: how many billions are pledged, how much has been mobilised, what gap remains between current flows and required investment. While these aren't irrelevant questions, they also aren't the decisive ones.

The constraint on Africa's energy transition isn't primarily the absence of capital, because it exists in abundance in global markets. The constraint is the price at which that capital reaches African projects. A billion dollars at 3 percent transforms an energy system, but the same amount at 18 percent distorts it, generating debt service obligations that undermine the fiscal sustainability of the very institutions the transition depends upon.

This is why successive rounds of climate finance pledges have produced limited structural change in African energy systems. They expand the pool of nominally available funding whilst leaving the pricing mechanism entirely intact. The gap that matters isn't a financing gap, but a pricing architecture, one that systematically assigns capital costs to African clean energy projects that bear no relationship to the actual risk profiles of those projects, and every relationship to the sovereign classifications produced by a creditworthiness framework designed for a different economic era.

What the banking signal reveals

A development worth examining carefully is the recent movement by major African banks, Standard Bank, Nedbank, and FirstRand, to limit exposure to fossil fuel assets ahead of their 2026 self-imposed deadlines.

At one level, these policies appear to align with global climate objectives: reducing financing for carbon-intensive activities, signalling transition intent. But examined through the lens of cost and creditworthiness, they reveal something more structurally significant. Domestic financial institutions have concluded that continued fossil fuel investment exposes their balance sheets to long-term transition risk. The logical corollary is that clean energy investment should absorb the capital being withdrawn from hydrocarbons.

The problem is that clean energy investment in Africa remains expensive to finance at scale, precisely because of the creditworthiness framework described above. Fossil fuel financing is narrowing, and clean energy financing remains structurally costly. Between the two, a gap is opening, not a smooth transition but a dislocation. If the domestic banking sector can recognise the structural imbalance and begin adjusting its exposure accordingly, the question that follows is uncomfortable: why has the international creditworthiness framework that determines the price of capital not made the same adjustment?

A system working as designed

The persistence of this dynamic points towards a conclusion that is difficult to avoid.

The current climate finance architecture isn't simply misaligned with Africa's transition needs. It is operating according to a coherent, internally consistent set of priorities, priorities that were established before the energy transition was a live concern, and that reflect the interests of a global financial system organised around sovereign stability, dollar liquidity, and established economic hierarchies.

From within that system, the outcome isn't a failure, but a result. Africa's elevated cost of capital reflects the position the continent occupies in a hierarchy that wasn't constructed with its transition in mind. Modelling by researchers at University College London has shown that representing Africa-specific weighted average cost of capital assumptions, rather than applying uniform global averages, indicates 35 percent lower green electricity production in cost-optimal decarbonisation pathways for the continent. Ten years of decarbonisation potential erased, not by lack of sun or wind, but by the price of money.

Until the framework used to assess and price creditworthiness is recalibrated to reflect the realities of the energy transition, rather than the assumptions of a fossil-fuel-based system, the outcome will remain structurally unchanged. Capital will flow. But it will flow at a price that makes transformation economically impossible for the markets that most need it. In that pricing, more than in any headline investment figure, the future of Africa's energy transition will be decided.