South Africa's $2bn coal gambit faces court showdown on power investment risk
Government appeals court ruling that blocked coal procurement on constitutional grounds.
A 1,500-megawatt coal procurement plan, invalidated by South Africa’s High Court in 2024, returns to legal contest this week when the Supreme Court of Appeal hears the government’s challenge to that ruling. The appeal, filed by Electricity and Energy Minister Kgosientsho Ramokgopa, forces a direct reckoning with how state energy decisions must weigh the capital costs of power security against the economic and constitutional burden of environmental and health damage.
The financial and regulatory stakes are considerable. The 2019 Integrated Resource Plan underpinned the coal allocation, and the High Court declared the relevant ministerial and regulatory decisions unconstitutional, unlawful and invalid, finding that decision-makers had failed to assess the effects on children’s rights, air quality and public health. That ruling effectively froze a procurement process that had not yet commenced, meaning no contracts were signed and no capital deployed before the legal challenge succeeded.
The government’s economic argument is essentially one of baseload necessity. Minister Ramokgopa contends that coal cannot be deemed constitutionally impermissible simply because it generates greenhouse gas emissions, and that neither domestic law nor international instruments incorporated into South African law require zero carbon output. His heads of argument frame the 2019 decision as a reasonable balancing act between environmental protection and the operational reality of maintaining reliable electricity supply. He also notes that because procurement never began, no actual harm has materialised, and argues courts should not substitute their judgment for government decisions on the national energy mix.
What changed between 2019 and now is the policy landscape. South Africa’s updated 2025 Integrated Resource Plan, gazetted in October 2025, contains no allocation for new coal-fired generation. That shift might appear to render the appeal moot, but the respondents, youth and environmental organisations including the African Climate Alliance, Vukani Environmental Movement in Action and groundWork, argue that a ruling from the SCA would establish binding legal precedent governing how future energy and environmental decisions must be made. Precedent, in other words, carries its own long-run economic value for investors and operators navigating South Africa’s energy transition.
The respondents dispute the government’s framing on multiple fronts. They argue that sections 24 and 28(2) of the Constitution required both the minister and the National Energy Regulator of South Africa to assess how the decision would affect children, and that no such assessment appears in the decision records. They further contend the government failed to demonstrate that additional coal was either necessary for energy security or more cost-effective than available alternatives, a claim that goes directly to the investment rationale for the procurement.
A factual dispute over consultation adds another layer of complexity. The minister states the 2018 draft IRP already provided for 1,000MW of coal and that the final 2019 IRP increased this to 1,500MW following public consultation. The respondents counter that the final allocation was materially different from what was put out for comment, undermining the procedural legitimacy of that process. The case also involves a pointed dispute over carbon capture and storage as a “clean coal” option. Court papers from the respondents describe a departmental assessment that ultimately consisted of a single Wikipedia printout on the technology, raising serious questions about the due diligence applied to whether such options were technically or economically viable.
The health cost accounting presented by the respondents is specific and substantial. Dr Jamie Kelly of the Centre for Research on Energy and Clean Air, working with Greenpeace Africa and groundWork, examined the consequences of delaying coal retirements under the 2025 IRP. His research estimates those delays would produce 41,000 additional preterm births, 17,000 additional childhood asthma cases and 370 additional deaths among children under five. Kelly argued that incorporating health impacts into energy planning would improve economic decision-making by accounting for the wider burden of coal, including premature deaths, illness, healthcare costs and lost productivity. South Africa operates the largest coal-fired power fleet in Africa and the sixth-largest globally, yet the IRP includes no detailed assessment of how different energy choices affect public health outcomes.
The minister’s own affidavit, quoted in the respondents’ court papers, acknowledges that the historic impact of coal-fired power generation on climate change and human health is not disputed. That concession may prove difficult to reconcile with an argument that the 2019 decision adequately weighed constitutional obligations.
The hearing begins at 10am on Wednesday. The central open question for investors and energy operators is whether the SCA will set a standard requiring formal health and rights impact assessments before any future generation procurement can proceed, and what that would mean for the cost and timeline of South Africa’s next round of capacity decisions.
Q&A
What is the financial and regulatory scope of the coal procurement plan at stake in this appeal?
A 1,500-megawatt coal procurement plan, underpinned by the 2019 Integrated Resource Plan, was declared unconstitutional and invalid by the High Court in 2024. No contracts were signed and no capital was deployed before the legal challenge succeeded, but the government's appeal seeks to overturn that ruling.
What is the government's core economic argument for the coal allocation?
Minister Ramokgopa contends that coal cannot be deemed constitutionally impermissible simply because it generates greenhouse gas emissions, and that energy decisions must balance environmental protection against the operational reality of maintaining reliable electricity supply. He argues courts should not substitute their judgment for government decisions on the national energy mix.
What health cost estimates do respondents present, and how do they challenge the investment rationale?
Research by Dr Jamie Kelly estimates that coal delays under the 2025 IRP would produce 41,000 additional preterm births, 17,000 childhood asthma cases and 370 additional deaths among children under five. Respondents argue the government failed to demonstrate that additional coal was necessary for energy security or more cost-effective than alternatives, undermining the procurement's investment justification.
What legal precedent could the Supreme Court establish, and what would it mean for future energy procurement?
A ruling could establish binding precedent requiring formal health and rights impact assessments before any future generation procurement proceeds. This would raise costs and timelines for South Africa's next round of capacity decisions and create new regulatory requirements that investors and operators must navigate.