Grid Bottleneck Threatens South Africa's Power Crisis Fix; Infrastructure Deal Aims to Unb
Transmission bottleneck becomes focus of infrastructure partnership to restore reliable power supply.
South Africa’s electricity grid cannot absorb the new power plants the country desperately needs. That single bottleneck, years of underinvestment in transmission infrastructure, is now the central obstacle to reliable electricity supply for households and businesses nationwide.
To break that deadlock, the Development Bank of Southern Africa (DBSA) and the National Transmission Company South Africa (NTCSA) signed a memorandum of understanding on Friday, 31 July 2026, in Johannesburg. The agreement targets the planning and delivery of transmission infrastructure, directly addressing the constraint that has prevented new generation from reaching the grid and kept supply unreliable for ordinary South Africans.
The partnership pools what each institution does best. The NTCSA operates the national transmission network and brings deep technical expertise; the DBSA contributes infrastructure financing and project development capability. Together, they will coordinate on project preparation, securing funding, building institutional capacity and implementing transmission programmes. The memorandum also covers regional interconnectors linking South Africa’s grid to neighbouring countries, a component of the country’s long-term Transmission Development Plan.
NTCSA chief executive Monde Bala said expanding transmission capacity is fundamental to unlocking new generation, strengthening energy security and enabling broad-based economic growth. DBSA chief executive Boitumelo Mosako framed the partnership as essential to meeting future electricity demands, saying “the scale of South Africa’s transmission expansion requires strong partnerships that combine technical capability with innovative financing solutions.”
The scale is, in fact, daunting. South Africa’s Transmission Development Plan requires approximately 14,500 kilometres of new transmission lines and 133,000 megavolt-amperes of transformer capacity by 2034. The initial five-year phase focuses on roughly 5,000 kilometres of new lines and associated capacity to enable approximately 30 gigawatts of new generation to connect to the grid. The total programme carries a price tag of R134 billion.
What changed: after years of stalled planning, the programme is now in active execution phase, aligned with South Africa’s Integrated Resource Plan.
To fund it, the two institutions expect to deepen engagement with multilateral development banks, development finance institutions and institutional investors, creating pathways for capital mobilisation. By combining technical planning with strategic financing, they aim to build a power system resilient enough to support the country’s development needs.
Meanwhile, the NTCSA is pursuing international partnerships to accelerate delivery. Bala is currently attending the South Africa-China Electricity and Energy Investment Conference, where South Africa is presenting a R2.2 trillion investment pipeline to Chinese financiers. That pipeline targets 105 gigawatts of new power generation capacity and corresponding grid expansion. The utility is seeking equity investment, engineering and procurement contracting support, technology partnerships, financing arrangements and localisation assistance from Chinese and other international investors.
The transmission expansion strategy carries a dual public purpose: rebuilding critical energy infrastructure while supporting South Africa’s localisation and industrialisation objectives. For citizens, the practical question is whether execution can match ambition, and whether the lights will stay on long enough for that answer to arrive.
Q&A
What is the primary obstacle preventing South Africa from fixing its electricity crisis?
The electricity grid cannot absorb new power plants because of a transmission infrastructure bottleneck caused by years of underinvestment. The grid lacks sufficient transmission lines and capacity to connect new generation sources.
What is the scale of the transmission expansion programme?
South Africa's Transmission Development Plan requires approximately 14,500 kilometres of new transmission lines and 133,000 megavolt-amperes of transformer capacity by 2034. The initial five-year phase focuses on roughly 5,000 kilometres of new lines to enable approximately 30 gigawatts of new generation to connect. The total programme costs R134 billion.
Which institutions signed the partnership agreement and what are their roles?
The Development Bank of Southern Africa (DBSA) and the National Transmission Company South Africa (NTCSA) signed a memorandum of understanding on 31 July 2026. The NTCSA operates the national transmission network and provides technical expertise; the DBSA contributes infrastructure financing and project development capability.
How will the transmission expansion programme be funded?
The two institutions expect to deepen engagement with multilateral development banks, development finance institutions and institutional investors. The NTCSA is also pursuing international partnerships, including presenting a R2.2 trillion investment pipeline to Chinese financiers at the South Africa-China Electricity and Energy Investment Conference.