8.3-run-until-2035-1-e2adad03540f068d.pdf

This report provides a comprehensive life extension study for the Hendrina Power Station, detailing the technical requirements and associated costs to maintain operations until 2035. The study covers boiler plants, turbine auxiliaries, C&I systems, electrical plant areas, and common plant infrastructure, recommending a combination of targeted replacements, modernizations, and rigorous maintenance regimes to ensure reliability and environmental compliance.

• Siemens recommends that operating the power station units until 2035 is the most economical solution when weighing costs against the remaining life of the plant gained.
• For Units 1-5, critical boiler recommendations include replacing all economiser and primary superheater elements, and replacing all secondary superheater elements before 2025. The report also suggests considering a tower boiler conversion.
• For Units 6-10, the study recommends replacing all economiser elements and several superheater components, including the Superheater 2 outlet header, Superheater 3 inlet and outlet headers, and Superheater 4 inlet and outlet headers.
• The turbine plant requires significant capital investment in modernized equipment to operate until 2035. A modern design could create 10MW of 'green power' per unit (100MW total station output) or reduce CO2 emissions by approximately 700,000 tons per year.
• The main condenser tubes are aged between 35 to 40 years and show wall loss up to 40%; therefore, a 100% re-tube of the condenser is recommended for operation until 2035.
• The report identifies a critical need to replace original low voltage (LV) motors, many of which are over 40 years old (exceeding their 20-year design life) and suffer from irreparably damaged stator cores and worn bearing housings.
• A large-scale replacement program is recommended for most medium voltage (MV) motors because the average remnant economic life is less than 10 years and many exhibit concerning partial discharge activity.
• The majority of the MV cable network consists of original Paper Insulated Lead Covered Steel Wire Armored (PILCSWA) cable, which is described as 'systematically unreliable'. A complete replacement program for the remaining PILCSWA cable is recommended.
• Siemens recommends 'Scenario C' for the generators, which involves replacing all ten gas/water-cooled generators with new air-cooled Footprint generators. This is considered the most viable option for a base load plant and is expected to save approximately 662,650,000 ZAR compared to keeping existing units.
• The station's energy metering systems do not meet the new Eskom EMDAS standard. Failure to comply would result in a penalty on the CO2 emissions environmental levy of approximately 1.2 million ZAR per year.

APA

Centre for Environmental Rights (n.d.). 8.3-run-until-2035-1-e2adad03540f068d.pdf. https://cer.org.za/wp-content/uploads/2017/07/8.3-Run-Until-2035-1.pdf?x21779

Chicago

Centre for Environmental Rights. 8.3-run-until-2035-1-e2adad03540f068d.pdf. n.d. https://cer.org.za/wp-content/uploads/2017/07/8.3-Run-Until-2035-1.pdf?x21779.

Wikipedia

{{cite report |author=Centre for Environmental Rights |title=8.3-run-until-2035-1-e2adad03540f068d.pdf |url=https://cer.org.za/wp-content/uploads/2017/07/8.3-Run-Until-2035-1.pdf?x21779 |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{centreforenvironmentalrightsnd83rununtil20351e2adad03540f068dpdf, author = {{Centre for Environmental Rights}}, title = {{8.3-run-until-2035-1-e2adad03540f068d.pdf}}, institution = {Centre for Environmental Rights}, url = {https://cer.org.za/wp-content/uploads/2017/07/8.3-Run-Until-2035-1.pdf?x21779}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }