Vodacom, MTN, Telkom, and other telecoms in South Africa scramble to stay online as the power grid crumbles, spending millions on alternative power sources
Nqobile Dludla / Reuters : Tweets: @nqobile_d Tweets: Nqobile Dludla / @nqobile_d : As the national power grid crumbles, leaving Africa's most advanced economy in the dark for up to 10 hours a day, mobile operators including Vodacom, MTN and majority state-owned Telkom are scrambling to ensure their networks stay up and running. https://www.reuters.com/...
Context & Ripple Effects
South Africa's mobile networks have become the country's de facto critical infrastructure, and the grid can no longer underwrite them — outages now run up to 10 hours a day. The operators' response extends an arc that began with [[a:962679|operators and companies like Google and Facebook upgrading digital infrastructure across Africa]], where less than 1% of global data center capacity sits.
The scramble also lands mid-stream in a rough stretch for South African connectivity: all domestic networks were hit by disruptions to the West Africa Cable System, the roughly 16,000 km artery to Europe now slated for repair. With MTN's subsea cable landing in Cape Town in 2022 and its planned $320M East2West inland fiber through 10 countries, power resilience is emerging as the binding constraint on an otherwise ambitious build-out.
First-order effects
- Vodacom, MTN and majority state-owned Telkom are redirecting millions into batteries, generators and other alternative power for towers and exchanges, turning energy spend into a permanent operating cost line rather than contingency planning.
- Telkom's position is doubly exposed: as a majority state-owned operator, its network uptime now depends on the same failing state utility whose shortfalls it is paying to bypass.
Second-order effects
- Power-resilience budgets compete directly with expansion capital — every rand spent keeping towers alive during load-shedding is one not spent on projects like MTN's East2West fiber, slowing the connectivity build-out even as operators commit to it.
- Uptime during outages becomes a competitive differentiator among Vodacom, MTN and Telkom, shifting marketing from coverage maps to who keeps customers connected when the grid fails.
Third-order effects
- If chronic outages persist, African network design converges on a bring-your-own-power architecture where every site carries its own generation, structurally raising the cost floor of operating a network on the continent versus markets with reliable grids.
- A state unable to power its own communications layer strengthens the case for treating mobile networks as critical infrastructure — a sharp contrast with the deliberate internet blackouts documented in Cameroon, Gambia and the Republic of Congo, where governments switch networks off by choice rather than by grid failure.
The trend: Africa's connectivity build-out is being gated less by capital or spectrum than by time-to-power, forcing operators to internalize electricity supply as core infrastructure.