Inga 3 Is Back. South Africa Wants the Power. The Question East Africa Has Not Yet Answered Is What Role It Intends to Play.

The Framing Is Wrong and the Stakes Are Too High to Leave It Uncorrected When the DRC and South Africa resume discussions over Inga 3, the coverage tends to follow a predictable structure. A headline about a massive dam. A paragraph about the Congo River's extraordinary hydroelectric potential. A note about the financing complexity. A quote from a minister about transformational impact. And a conclusion that frames the project as a bilateral arrangement between Africa's largest hydropower resource and its most industrialised electricity consumer. That framing is analytically inadequate and strategically misleading, because Inga 3 is not a bilateral energy deal. It is the first major piece of what, if completed, would be a continental electricity architecture of a scale and consequence that Africa has never built. The Congo River's potential, estimated at between 40,000 and 44,000 megawatts at the Grand Inga site alone, dwarfs any single country's electricity needs. The project's design explicitly references integration with the Southern African Power Pool, the Central African Power Pool, and the Eastern Africa Power Pool. The transmission infrastructure that would carry Inga 3's output is not a domestic grid extension. It is a continental network backbone. And the countries that position themselves as active participants in designing, financing, and governing that network will occupy a fundamentally different position in Africa's energy future than those that arrive later as passive consumers of whatever architecture others have built. For East Africa, the return of Inga 3 to serious discussion is therefore not a story about a dam in the western DRC. It is a strategic inflection point that raises a question the region has not yet answered with sufficient clarity: does East Africa intend to be part of the system architecture, or does it intend to be an endpoint in it? What Inga 3 Actually Is and Why the Numbers Matter The Grand Inga scheme is built on a geological accident of extraordinary proportions. The Congo River carries the largest volume of water of any river in the world by discharge after the Amazon, and at the Inga site approximately 225 kilometres downstream from Kinshasa, it drops dramatically through a series of cataracts that concentrate its energy potential in a relatively compact geography. The theoretical installed capacity of the full Grand Inga development is approximately 44,000 megawatts, a figure that exceeds the entire current installed generation capacity of Sub-Saharan Africa and would make it by far the largest hydropower facility ever built. Inga 3 is the third phase of a sequenced development that began with Inga 1 and Inga 2, two smaller facilities constructed in the 1970s and 1980s that together have a combined installed capacity of approximately 1,775 megawatts but have operated well below nameplate capacity for years due to maintenance deficits and rehabilitation backlogs. Inga 3 is planned at between 4,800 and 11,000 megawatts depending on the configuration and financing structure ultimately adopted, with the lower figure representing the most immediately bankable development scenario and the higher figure incorporating additional generating units that would require a more complex financing and offtake arrangement. The current revival of talks centres on a South Africa anchor offtake agreement of up to 5,000 megawatts, which would provide the revenue certainty required to underpin the project's financing structure. South Africa's electricity system, managed by the state utility Eskom, has been under severe stress for several years, with load-shedding becoming a structural feature of daily economic life rather than an emergency measure. The country's coal fleet is ageing and being decommissioned. Its renewable energy buildout is significant but intermittent. Its nuclear programme at Koeberg is approaching end of life. The case for a large, firm, baseload hydropower import from the DRC is therefore not merely attractive in principle. It is close to a structural necessity for South Africa's electricity system stability over the next two decades. The World Bank has committed approximately USD 1 billion in preparatory and technical assistance funding for the Inga 3 development, providing institutional credibility and analytical infrastructure that previous Inga revival attempts lacked. The African Development Bank and several bilateral development finance institutions have also been engaged in the project's preparation. But the full development cost, estimated at USD 10 billion for the lower configuration and potentially double that for a more expansive scheme, requires a financing structure of extraordinary complexity that combines sovereign guarantees, multilateral loans, private project finance, and anchor offtake agreements in a package that no African infrastructure project has previously assembled at this scale. The DRC's Strategic Positioning and Its Regional Implications For the Democratic Republic of Congo, Inga 3 represents something more consequential than a power generation project. It represents the most viable pathway available to a country of extraordinary resource wealth and persistent developmental challenge to convert that wealth into a durable geopolitical and economic asset. The DRC's mineral endowment, its cobalt, copper, coltan, gold, and now its critical battery metals, has historically been extracted and exported in ways that generated limited domestic economic multiplier effect, as the separate Uchumi360 analysis of Africa's mining value chain gap documents in detail. The country's hydroelectric potential represents a different category of resource, one that cannot be extracted and shipped to China for processing but must be converted into electricity and transmitted to buyers through infrastructure that the DRC controls. If Inga 3 is built and the transmission infrastructure that connects it to regional power pools is developed, the DRC becomes not just a mineral supplier but an electricity exporter of continental significance, with the leverage over regional energy systems that this position implies. This leverage is not hypothetical. Countries that control critical infrastructure in regional supply chains occupy a fundamentally different negotiating position from those that simply supply commodities. The difference between the DRC as a cobalt exporter and the DRC as a hydropower exporter is the difference between a price-taking commodity supplier and an infrastructure owner with long-term offtake agreements and transmission network control. From a development strategy perspective, the latter is categorically more valuable, and the DRC's engagement with Inga 3 reflects an understanding of this distinction that deserves recognition. The transmission infrastructure required to connect Inga 3 to the Eastern Africa Power Pool would run from the Inga site northward and eastward through the DRC toward the Zambian and Tanzanian borders, connecting to the existing and planned interconnection infrastructure of the EAPP. This transmission corridor, if built, would be one of the most consequential pieces of infrastructure on the continent, carrying electricity from the world's largest undeveloped hydropower resource to the fast-growing industrial and urban demand centres of East Africa. It would also represent a physical and institutional connection between Central and East Africa that does not currently exist at the scale required to make regional power trading economically meaningful. East Africa's Energy Constraint and the Inga Opportunity East Africa's electricity challenge, as documented in Uchumi360's analysis of the region's energy systems deficit, is not primarily a generation problem. It is a systems problem, specifically the gap between generation capacity and the transmission, distribution, and market coordination infrastructure required to deliver electricity reliably and affordably to industrial and commercial users. But within this systems challenge, the availability of firm baseload power remains a genuine constraint in several markets, and it is in this context that Inga 3 represents a potentially transformative external supply option. Tanzania's Julius Nyerere Hydropower Station adds significant baseload capacity to the national system, but it is a single facility whose output is determined by the hydrology of the Rufiji River and whose contribution to total system reliability is vulnerable to the drought cycles that affect East African rainfall patterns. Kenya's geothermal capacity provides firm baseload power with exceptional capacity factors, but it is geographically concentrated in the Rift Valley and its expansion is constrained by the geology of viable geothermal fields. Uganda's hydropower additions have improved the system significantly, but the country's load growth trajectory is outpacing generation additions in ways that will create capacity constraints within the decade. Rwanda, Burundi, and Malawi face structural generation deficits that domestic resources alone cannot resolve at the pace their economic development trajectories require. Access to Inga 3 power through a functioning EAPP interconnection would address several of these constraints simultaneously. Firm, large-scale baseload hydropower from the Congo River would reduce the dependence of East African grid systems on diesel backup generation, which is both expensive and dollar-intensive. It would provide scale that allows industrial users to plan around reliable electricity supply, improving the economics of manufacturing and processing investments that are currently deterred by power unreliability. And it would reduce the seasonal vulnerability of East African systems to drought, because the Congo River's hydrological cycle is partially uncorrelated with the rainfall patterns that determine output from East African hydro facilities, providing a natural diversification of the regional generation mix. The economic case for East African countries to be engaged with Inga 3 development is therefore not sentimental or geopolitical in the first instance. It is arithmetic. Cheaper, more reliable baseload electricity reduces production costs, improves industrial competitiveness, and reduces the dollar-denominated energy import bill that, as Uchumi360 has documented separately, is one of the most significant macroeconomic vulnerabilities facing the region's growth model. The Dependency Risk: Replicating the Import Model in a Different Form The opportunity that Inga 3 represents for East Africa comes with a structural risk that the region's policymakers need to engage with directly rather than deferring to the excitement of the headline numbers. The risk is that East Africa plugs into a continental power system designed and controlled by others and in doing so replicates, in a new form, the energy dependency that currently makes it vulnerable to external dollar-denominated commodity price shocks. The current vulnerability is specific: East African economies import refined petroleum products priced in dollars, creating a transmission mechanism through which global oil price movements translate into domestic inflation, currency pressure, and monetary policy constraint. If Inga 3 is built on South African and DRC terms, with South Africa as the anchor buyer and the DRC as the infrastructure owner, and East African countries subsequently connect to the system as additional offtake customers, the dependency structure changes its form but not its fundamental character. Instead of importing oil from global markets, East African economies would be importing electricity from a regional infrastructure system whose governance, pricing, and operational decisions they do not control. This is not an argument against connecting to Inga 3. The economic benefits of access to low-cost Congo River hydro power are real and large. It is an argument for the manner of connection, specifically for East African countries to engage with the Inga 3 development process as co-investors and governance participants rather than as late-arriving consumers accepting terms set by others. The difference between an East Africa that holds equity in the transmission infrastructure connecting Inga to the EAPP and an East Africa that simply buys power through that infrastructure is the difference between a participant in the regional energy architecture and a customer of it. The distinction has precedent in the region's own experience. The countries that have built the most durable energy security positions are those that developed domestic generation capacity and invested in the infrastructure through which that capacity is delivered, not those that relied on external suppliers regardless of how cost-competitive the external supply appeared at the point of contracting. Rwanda's geothermal and solar investments, Kenya's geothermal programme, and Tanzania's hydropower expansion have all created energy assets that those countries own and control. Participation in Inga 3 that follows this logic, through co-investment in transmission infrastructure, through joint venture structures in distribution, and through active engagement in EAPP governance, builds energy security in a way that pure offtake purchasing does not. Execution Risk: The Constraint That Has Defeated Every Previous Inga Revival No analysis of Inga 3 is intellectually honest without a direct confrontation with the project's execution history. The Grand Inga scheme has been in planning, discussion, and periodic revival for more than half a century. The Inga 1 and Inga 2 facilities were built in the 1970s and 1980s and have operated below capacity ever since. Multiple attempts to advance Inga 3 have been initiated and subsequently stalled, most recently the agreement with a consortium that included AECom and Spanish infrastructure group Actividades de Construcción y Servicios, which was cancelled in 2016 after years of negotiation failed to produce a bankable financing structure. The obstacles that have historically prevented Inga 3 from moving from planning to execution are not primarily technical. The engineering of a large hydropower facility on the Congo River is well understood. The obstacles are financial, political, and institutional. The financing structure required for a USD 10 billion project in the DRC, a country that combines extraordinary resource wealth with significant governance complexity and a history of project execution challenges, demands a level of risk allocation sophistication and lender confidence that has consistently proven difficult to assemble. The anchor offtake agreement with South Africa is a genuine improvement in the project's bankability, providing the revenue certainty that underpins debt service, but it does not resolve the construction risk, the political continuity risk, or the transmission infrastructure financing challenge that sit between the current planning stage and a functioning generating facility. The transmission dimension deserves particular emphasis because it is the component of the Inga 3 system most relevant to East African access and it is the component with the most complex financing and governance requirements. Building generating capacity at Inga is a discrete engineering project with a defined site, a defined scope, and a defined output. Building the transmission infrastructure that carries that output to South Africa, to Zambia, to Tanzania, and eventually to the broader EAPP network is a multi-country, multi-decade infrastructure programme that requires sustained political commitment, cross-border regulatory coordination, and financing structures across multiple sovereign jurisdictions simultaneously. The Africa does not suffer from a shortage of ambitious energy project announcements. It suffers from the institutional and financial capacity to convert those announcements into operating infrastructure at the pace and scale that development requires. The World Bank's USD 1 billion preparatory commitment is meaningful precisely because it addresses some of these institutional constraints, funding the technical studies, environmental assessments, legal frameworks, and transaction structuring that previous Inga attempts lacked. But preparatory funding is not project financing, and the distance between a well-prepared project and a fully financed, under-construction project remains the most consequential gap in African infrastructure development. What East Africa Should Do With This Moment The revival of Inga 3 talks creates a specific and time-limited window for East African governments, utilities, and development institutions to engage with the project's development process in ways that shape their eventual position in the regional energy architecture rather than accepting whatever role is available after the primary negotiations are concluded. Engagement at the EAPP level is the most immediately actionable pathway. The Eastern Africa Power Pool provides the institutional framework through which East African countries can participate in the planning and governance of the regional interconnection infrastructure that would bring Inga 3 power to the sub-region. Active EAPP participation means contributing to the transmission corridor planning, engaging on the technical and regulatory standards that will govern cross-border power trading, and building the bilateral and multilateral political relationships with the DRC that would support a co-investment approach to transmission infrastructure rather than a pure offtake model. At the national level, the most strategically important action is completing the domestic transmission and distribution infrastructure improvements that would allow Inga 3 power, if and when it arrives at the border, to be absorbed and distributed effectively. The risk of investing in cross-border power trading arrangements before the domestic grid can utilise the imported power is real, and several East African countries face internal transmission bottlenecks that would limit the economic benefit of new power imports regardless of their source. Solving the domestic systems problem is therefore a prerequisite for benefiting from regional power integration, not a separate agenda to be addressed afterwards. At the financing level, the African Development Bank and Afreximbank provide vehicles through which East African countries can participate as co-financiers in Inga 3 development, building equity stakes and governance rights into the project structure rather than arriving as buyers of a system others have financed and built. This approach requires coordination among East African governments and development institutions that has historically been difficult to mobilise, but the scale of the Inga 3 opportunity provides an unusually strong rationale for it. The Bottom Line Inga 3 is not just about a dam. It is not just about DRC-South Africa power trade. It is the most significant test of whether Africa can build the continental energy systems that its development trajectory requires, or whether it will continue to develop national and sub-regional capacity in fragmented ways that leave the continent's most extraordinary energy resource undeveloped for another generation. For East Africa, the question is not whether Inga 3 power would be useful. It would be transformative. The question is whether the region engages with the project's development in a way that builds its position in the continental energy architecture, or whether it waits for others to build the system and then negotiates access to it from a position of dependency. The DRC is positioning itself as the supplier. South Africa is positioning itself as the anchor buyer. The architecture of the system that connects them, and potentially extends to East Africa's industrial and urban demand centres, is being designed now, in the technical studies, transmission corridor plans, and financing structures that the World Bank's preparatory funding is supporting. East Africa's seat at that table is not guaranteed. It has to be claimed. And the window for claiming it on favorable terms is open now, before the primary architecture is fixed and the region's role within it is determined by others. _______________________________________________________________________________________ Sources: World Bank Inga 3 Project Preparatory Documentation, African Development Bank Grand Inga Feasibility Assessment, Eastern Africa Power Pool Masterplan 2024, DRC Ministry of Energy and Water Resources Project Disclosures, South Africa Department of Energy Integrated Resource Plan, International Energy Agency Africa Energy Outlook 2024, International Hydropower Association Project Database, UNCTAD Investment in Infrastructure Report 2024. _______________________________________________________________________________________ Uchumi360 covers business, investment, and economic policy across East, Central, and Southern Africa.