8.3-run-until-2035-5-8d2bcd297af225d0.pdf

This report provides a detailed technical and budgetary plan for the life extension of the Hendrina Power Station, specifically focusing on the option to operate the boilers until 2035. It outlines necessary replacements and retrofits for boiler components, draft plants, and turbine systems to ensure reliability, safety, and compliance with emissions legislation.

• To comply with future emissions legislation and the South African Air Quality Act, the report recommends retrofitting low NOx burners to achieve NOx emissions of less than 750 mg/m.
• The report proposes a conversion to a tower boiler design to substantially improve reliability, predicting that tubes will last nearly 10 times longer based on fly ash erosion due to decreased nominal flue gas velocities.
• A modular replacement strategy for primary superheater and economizer banks is recommended to achieve a 12-year life for each bank, aiming for fewer than 1 tube leak per year after installation.
• The report recommends the complete replacement of main steam piping, including the removal of cross-over piping and Turbine Lead Valves (TLV), with new piping designed for 200,000 hours (approximately 22 years) of service.
• To address emissions of SOx, the report suggests applying for a concession because the plant would only operate for 5 years from the application of the Air Quality Act until the plant's end of life, given the high capital cost of retrofitting Flue Gas Desulphurization (FGD) technology.
• Milling plant upgrades involving new high performance rotating throats and static classifiers are recommended to increase mill throughput by 20% and product fineness by 15% to support low NOx burners, particularly when using lower quality coal (2022 MJ/kg with over 28% ash).

APA

Centre for Environmental Rights (n.d.). 8.3-run-until-2035-5-8d2bcd297af225d0.pdf. https://cer.org.za/wp-content/uploads/2017/07/8.3-Run-Until-2035-5.pdf?x21779

Chicago

Centre for Environmental Rights. 8.3-run-until-2035-5-8d2bcd297af225d0.pdf. n.d. https://cer.org.za/wp-content/uploads/2017/07/8.3-Run-Until-2035-5.pdf?x21779.

Wikipedia

{{cite report |author=Centre for Environmental Rights |title=8.3-run-until-2035-5-8d2bcd297af225d0.pdf |url=https://cer.org.za/wp-content/uploads/2017/07/8.3-Run-Until-2035-5.pdf?x21779 |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{centreforenvironmentalrightsnd83rununtil203558d2bcd297af225d0pdf, author = {{Centre for Environmental Rights}}, title = {{8.3-run-until-2035-5-8d2bcd297af225d0.pdf}}, institution = {Centre for Environmental Rights}, url = {https://cer.org.za/wp-content/uploads/2017/07/8.3-Run-Until-2035-5.pdf?x21779}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }