8.2-run-until-2025-10-e8a14f5d5de35321.pdf

The Hendrina Power Station Consolidated Life-ex Report provides a detailed technical assessment and set of recommendations to extend the operational life of the power station to 2025. The report identifies critical infrastructure risks, including ash dam capacity, boiler tube erosion, and turbine component fatigue, while outlining necessary replacements and maintenance regimes for the boiler, turbine, and auxiliary systems.

• The operational life of Hendrina Power Station is critically dependent on the construction of a new ash dam; without it, the plant's life is effectively limited to approximately June 2018. To meet the 2025 objective, Ash Dam 6 must be commissioned by mid-2018, although subsequent Eskom studies suggest 2022 may be sufficient.
• Boiler units 1-5 require extensive replacements to reach 2025, including all economizer elements and all primary superheater elements. The primary superheater tubes should be increased to 6 mm in thickness to achieve a 12-year lifetime.
• The steam drums of Units 1-5 show risks of cracking due to ramp rates exceeding design limits. Unit 1's drumhead is significantly thinner (60.3mm) than Units 2-5 (88.9mm), which reduces its fatigue life and increases pressure stress.
• The main steam piping system exhibits significant permanent deformation and negative slopes, particularly in the boiler legs and turbine leads, which can lead to condensate accumulation and erosion. It is recommended to modify the cross-over piping to a single super-heater outlet manifold configuration to reduce stress and failure risk.
• The turbine plant requires comprehensive modernization for 2025, including the complete replacement of HP and LP internals (rotors, inner casings, and diaphragms) and the replacement of the obsolete main turbine control and protection system with new electro-hydraulic technology.
• The pulverised fuel (PF) piping system is in a poor state of repair, with broken supports and missing bolts/gaskets, posing environmental, health, and safety risks. Monthly walk-downs and a full refurbishment of supports are recommended.
• To comply with the Air Quality Act by 2020, the existing coal burners must be replaced with low NOx burners. Additionally, the report suggests applying for a concession regarding Flue Gas Desulfurization (FGD) due to the high capital costs of retrofitting.
• The deaerator internal components are in poor condition with severe erosion and require replacement to ensure continued operation. The report also notes burn-through on liner plates and mechanical damage to manhole sealing faces.
• The PA fans are described as being in a poor state, specifically the casings, which have been worn by fly-ash and require replacement. The impellers are considered 'consumable' due to high wear rates.

APA

Centre for Environmental Rights (n.d.). 8.2-run-until-2025-10-e8a14f5d5de35321.pdf. https://cer.org.za/wp-content/uploads/2017/07/8.2-Run-Until-2025-10.pdf?x21779

Chicago

Centre for Environmental Rights. 8.2-run-until-2025-10-e8a14f5d5de35321.pdf. n.d. https://cer.org.za/wp-content/uploads/2017/07/8.2-Run-Until-2025-10.pdf?x21779.

Wikipedia

{{cite report |author=Centre for Environmental Rights |title=8.2-run-until-2025-10-e8a14f5d5de35321.pdf |url=https://cer.org.za/wp-content/uploads/2017/07/8.2-Run-Until-2025-10.pdf?x21779 |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{centreforenvironmentalrightsnd82rununtil202510e8a14f5d5de35321pdf, author = {{Centre for Environmental Rights}}, title = {{8.2-run-until-2025-10-e8a14f5d5de35321.pdf}}, institution = {Centre for Environmental Rights}, url = {https://cer.org.za/wp-content/uploads/2017/07/8.2-Run-Until-2025-10.pdf?x21779}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }