Property – Construction & Engineering · Editorial
By Moakanyi Magazine · China-in-Africa · June 2026
The dam gets the photograph. The wire gets the work. For all the attention paid to Africa's marquee power stations, generating electricity is the easier half of the problem – moving it to where it is needed is the part that quietly decides whether a project matters. By China's own count, Chinese firms have helped build or upgrade 66,000 km of power transmission and distribution lines on the continent since 2000, alongside some 120 million kW of generating capacity.
The number nobody puts on a poster
That figure, repeated in FOCAC summit coverage, is an attributed official claim, and it dwarfs the visible drama of the dams in practical importance. Sixty-six thousand kilometres of line is the connective tissue that turns installed capacity into delivered power. Without it, a 600-MW turbine like Uganda's Karuma spins for a grid that cannot carry its output to the towns that need it.
Transmission rarely earns a summit headline because it photographs poorly and explains badly. Yet a country can install a gigawatt of generation and still suffer outages if the wires, transformers and substations between plant and premises are too few, too old or too thin. The wire is where capacity becomes consumption, and where a great deal of installed generation quietly fails to reach the people it was built for.
Generation without transmission is a full tank with no fuel line.
The half of the system that gets built last
Lines often lag the plants they are meant to serve. A dam can be financed, built and commissioned as a single bankable project, while the transmission to evacuate its power is split across substations, rights of way and distribution upgrades that no one lender wants to own. The result is a recurring mismatch: capacity sitting ready while the wires to carry it are still being strung, and a grid that looks well-supplied on paper still shedding load in practice.
China's 66,000 km claim matters precisely because it addresses this gap. Bundling transmission into the same delivery model as generation is what lets a new dam actually reach demand rather than wait years for a separate line to catch up – though, as with the plants, a number counts kilometres laid, not whether they were the right kilometres in the right places.
A grid is only as strong as the wires built last, not the plant built first.
Where the wires cross borders
Transmission is also where national projects become regional ones. Chinese contractors built the lines carrying Ethiopian hydropower toward its borders, the physical precondition for selling power to Kenya, Sudan and Djibouti, and Chinese firms supplied transmission engineering for the GERD lines under a contract dating to 2013. A dam is a national asset; the line out of it is what makes a regional electricity market – and Ethiopia's foreign-exchange earnings from power exports – possible.
That cross-border logic underwrites the East Africa Power Pool, whose members include Ethiopia, Kenya, Sudan, Uganda, Tanzania, Rwanda, Burundi, the DRC, Egypt and Libya. The pool is an agreement on paper; the interconnectors are what make it operate. Integration is built in copper before it is signed in ink, and a missing link can leave a willing seller and a willing buyer unable to trade – the difference between a surplus that earns and one that spills.
Borders are crossed by cables long before they are crossed by trade deals.
The unglamorous economics
Lines are also where losses, theft and under-maintenance erode the promised gains. New high-voltage links can leapfrog those problems; ageing distribution networks bleed them. The 66,000 km headline says little about condition, voltage or whether the last kilometre reaches households rather than stopping at an industrial substation – the difference between electrification on paper and in the home. A line counted as built is not the same as a line that delivers reliable power for decades, and the maintenance of those lines rarely comes with the same financing as their construction.
The last kilometre of wire decides whether a grid is a statistic or a light switch.
Transmission will never headline a summit, and no minister cuts a ribbon for a substation. But the wire between the dam and the door is the part of the China-Africa power story that determines whether all that generation becomes development rather than stranded capacity – and it is the part most worth watching, precisely because it is the part most easily overlooked.
Sources: China MFA, FOCAC Summit 2024
