There have been many challenges with the main issues to overcome being:
• Existing EKKI and Redwood structure
• Unusual bays sizes and structural elevations
• Tube bundles could not be located on the usual frames, so mounted on outside frames
• Existing Riser pipe water feed flanges at low level are all different (offset centrelines and varying elevations)
• Restricted access to one long side of the Cooling Tower
• Operating during the COVID-19 pandemic; Hamon works were suspended for just 3½ weeks,
• Incorporation of additional works added by RWE (amendments to Contract)
• Testing of two cells when all others were operating in old configuration