Grid extension has dominated African electrification policy for a generation, and for good reason: a connected grid remains the most efficient way to serve dense urban and industrial load. But treated as the only route to universal access, it has consistently under-delivered against its own targets.
The economics explain why. Extending transmission and distribution infrastructure to low-density rural areas carries a cost per connection that rarely clears a utility's own return threshold, let alone a commercial lender's. The result, across multiple markets, has been grid extension plans that are technically sound and persistently underfunded, leaving the communities furthest from existing infrastructure waiting longest.
The Distributed Alternative
Mini-grids and distributed solar-plus-storage systems invert this economics. Deployed close to demand, they avoid the capital intensity of long transmission runs entirely, and (critically for industrial users) can be commissioned in a fraction of the time a grid extension requires. For a manufacturer or agri-processor deciding where to locate, the difference between an eighteen-month wait for grid connection and a distributed system commissioned in six months is often the difference between locating in-country or not.
This is the policy argument that matters most: energy access is not simply a welfare objective. Structured well, it is industrial policy: determining where processing and manufacturing capacity locates, and therefore where the jobs and tax base that follow industrial activity land.
Structuring for Both
The choice between grid and distributed generation is a false one in practice. The countries making fastest progress on access are pursuing both: grid densification in urban and peri-urban corridors, and distributed generation for dispersed industrial and rural load, with regulatory frameworks that allow eventual grid interconnection of mini-grid assets rather than treating them as competitors to the utility.
Getting this right requires tariff and regulatory structuring as much as generation capacity: utilities need a credible pathway to eventually absorb distributed assets without stranding the investors who built them.
The Policy Implication
Governments serious about industrialisation should evaluate energy policy against a single question: how quickly can a new industrial user secure reliable power near their intended site? Where the answer is measured in years rather than months, distributed generation deserves a central role in the strategy, not a peripheral one.