Africa Is Building Two Incompatible Power Systems

Inside African countries, governments are breaking up old monopoly utilities. Generation is opening to private producers, transmission is being separated from generation, independent system operators are being created, and wholesale markets are being designed so electricity trades competitively instead of getting allocated through one state company. Across borders, the instinct runs the other way. The same countries are connecting their grids, synchronising operations and trying to behave more like a single electricity system with their neighbours.

Both reforms make economic sense when judged individually. Europe proves a regional power market does not need a vertically integrated monopoly underneath it. But it does need a clear answer to a question that sounds simple and is not: once a country has multiple generators, multiple traders, multiple distributors and multiple regulators instead of one utility, who actually represents that country at the regional grid boundary? Unbundling changes who schedules cross-border flows, who settles imbalances, who guarantees payment and who answers when something fails. That interface, not either reform individually, is becoming one of the least discussed problems in African electricity policy.

Two reforms, advancing in parallel, designed apart

South Africa gives the clearest domestic example. Eskom's transmission business now sits inside the National Transmission Company South Africa, and government is moving toward a fully independent system operator. The South African Wholesale Electricity Market, meant to replace the single-buyer model with genuine competition, was due to launch on 1 April 2026. That date slipped, and by late September only 32 participants had entered internal trading tests, with wider participation now expected sometime in 2027 rather than this year. South Africa is also the largest member of the Southern African Power Pool, where trading already happens through bilateral contracts and a competitive platform, and that dual role is the very place the friction shows: the market code, tariff methodology and vesting contracts NTCSA is still finalising all have to account for cross-border transmission arrangements at the same time, not afterwards.

West Africa shows the same pattern from a different angle. Nigeria has transferred intrastate regulatory responsibility to state electricity commissions, a fragmentation ETA has examined in depth elsewhere, including the specific tariff dispute in Enugu that made the seam between state and federal authority visible in public for the first time.

Meanwhile, Nigeria's system operator was formally admitted to the West African Power Pool on 24 January 2026, deepening the country's regional commitments at almost the same moment its domestic regulatory structure was fragmenting into 17 pieces. WAPP itself has been preparing Phase 2 of its regional electricity market, aiming to convert a successful four-hour synchronisation test into continuous, real-time cross-border operation, a transition this desk has tracked in detail separately, including the security and construction delays now pushing that timeline past its original target.

East Africa is heading toward the same destination by a third route. The World Bank approved $1.6 billion in June 2026 for a programme expanding interconnectors, supporting an Eastern Africa Power Pool day-ahead market, and strengthening regional system operation and regulatory harmonisation, the same basic ambition SAPP and WAPP are pursuing, arriving in a region that has not yet unbundled its national utilities to the same degree South Africa and Nigeria have. Three regions, three different starting points, the same unanswered question: how does a domestic market architecture built for competition translate into a regional architecture built for coordination?

Why unbundling removes the shortcut regional trade used to rely on

The old vertically integrated utility was inefficient in plenty of ways, but institutionally it was simple. One company owned generation, transmission and distribution, scheduled supply, collected tariffs and negotiated directly with the utility next door. Domestic reform deliberately breaks that concentration apart: a generator sells power, a transmission company manages network access, a system operator balances supply and demand, a distributor manages customers, and a regulator sets the rules governing all of them. That separation can reduce conflicts of interest and let genuine competition in.

But electricity doesn't become less interconnected just because the institutions managing it become more specialised. A cross-border trade still needs one operational schedule. Somebody has to reserve transmission capacity, submit bids, settle the difference between contracted and physical flows, and absorb the consequence when a buyer fails to pay. Domestic unbundling and regional integration are not inherently incompatible, and this piece is not arguing that they are. The problem is sequencing: unbundling removes the old institutional shortcut before a new interface capable of replacing it has actually been built, and every country now running both reforms at once is discovering that gap in a slightly different place.

The interface keeps failing in the same shape, in different countries

Look at where these near-failures have actually surfaced and a pattern emerges that outlasts any single country's explanation for it. Nigeria's Enugu tariff dispute got treated as a domestic regulatory disagreement about who controls retail pricing. A distribution company's default in Kaduna got treated as a local governance failure. Togo and Benin's accumulated arrears inside WAPP's settlement system, which this desk has documented separately, got treated as a bilateral payment dispute between two smaller economies and a larger neighbour. Each explanation is true as far as it goes. None of them notices that the same underlying mechanism produced all three: a domestic tariff, governance or liquidity decision, made without regional consequences in mind, surfacing months later as an obligation that a cross-border settlement system was depending on.

Nigeria has already built a partial answer in miniature. The Forum of Nigerian Electricity Regulators now brings the federal regulator and all 17 state commissions together specifically to coordinate tariff methodology, data and regulatory practice across the seam decentralisation created, the kind of institution the wider regional market still lacks at continental scale. That it took a live, public tariff dispute to produce this forum is itself the lesson: the interface got built after the failure exposed it, not before.

Africa has fragments of the institution it needs. It has not assembled them.

Academic research on African power pools has flagged this gap for years. A 2023 comparative study of SAPP, WAPP and EAPP found that national market structures and each country's individual reform strategy shape how a regional pool evolves in practice, and argued regulation needs to let new entrants such as independent power producers trade regionally while still controlling market power domestically.

A separate peer-reviewed analysis of West African power sector transformation reached a related conclusion: national reform models produce mixed results specifically where their institutional assumptions do not match local realities around revenue collection, utility liquidity and regulatory capacity, the same mechanism visible in Enugu, in Kaduna, and in Togo and Benin's arrears.

WAPP has never actually consisted of one vertically integrated utility per member country; its membership already includes transmission companies, generators, system operators and private electricity firms, and ERERA's documents have acknowledged for years that the regional market has to accommodate everything from vertically integrated monopolies to fully unbundled markets simultaneously.

The regional architecture can, in principle, handle that diversity. What it cannot yet do is harmonise fast enough, because WAPP can write market codes, ERERA can regulate cross-border trade and hold formal sanctions powers, national regulators control domestic tariffs and licences, and national governments retain sovereign subsidy and payment decisions; when those four layers disagree, reform stops being a technical exercise and becomes a negotiation among institutions whose decisions keep spilling across borders none of them fully controls.

What Europe built, and what Africa has only sketched

Europe is the useful comparison, not because it has one utility or one currency behind its market, since it has neither, but because of what it built between its national systems once both reforms were under way. ACER coordinates national regulators and can rule directly on defined cross-border questions. ENTSO-E coordinates transmission operators across 36 countries on system operation, network planning and market integration. Shared network codes govern capacity allocation, congestion and balancing, so national institutions stay national while the regional layer makes them interoperable with each other.

Africa has pieces of the same idea. ERERA performs regional regulation in West Africa. WAPP's Information and Coordination Centre coordinates the regional system physically. SAPP carries decades of operational and market institutions behind it. EAPP is building comparable functions from the RETRADE-EA programme now under way. What remains uneven is the authority, financial resilience, data infrastructure and rule harmonisation that those institutions need to keep pace as their member states fragment into more participants, faster than the regional layer connecting them can adjust.

The next reform is the interface itself

Africa doesn't need to choose between unbundling and regional integration. Small national systems benefit genuinely from regional trade. Monopoly utilities benefit genuinely from competition and a clearer separation of functions. The actual policy task left unfinished is making the two reforms interoperable: clearly designated interfaces at each power pool, independent system operators able to coordinate regional schedules, rules assigning imbalance, congestion and settlement risk explicitly, tariffs that recognise both national and regional costs, payment security robust enough that one distributor's liquidity failure cannot become a regional default, and regional regulators carrying enough authority, data and technical capacity to harmonise rules before the next inconsistency becomes the next crisis.

Africa's electricity reforms are not failing because domestic competition and regional integration contradict each other. They are exposing something simpler and harder to fix by decree: electricity does not respect institutional boundaries as neatly as legislation does. A country can split one utility into five companies, create 17 regulators, and join a regional day-ahead market, and at the instant its electricity actually crosses a border, those separate domestic institutions still have to behave like parts of one coherent system. Building that behaviour deliberately, rather than discovering its absence one tariff dispute at a time, is the architecture Africa still has to construct.