The boiler at Riskullaverket was originally built for 70 MW but Metso had prepared it for additional power load, so the load is now 80 MW. There are 8 retractable sootblowers in the superheaters (Clyde Bergemann, 6880 mm) and 11 sootblowers in CONV/ECO/APH.

Before HISS was installed, soot blowing was employed twice per day and each soot blowing cycle meant 1 MW decrease on turbine load for 2.5 h (duration of one soot blowing cycle).

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