Air quality controls upgrade saves Basin Electric $1 million annually

A project at Dry Fork Station near Gillette, Wyoming, increased efficiencies in the air quality control system and will save Basin Electric $1 million annually.

The project team, led by Nolan Bray, Basin Electric plant engineer,  measured the filtration system’s effectiveness and made modifications – including automating limestone flow into the scrubber and adjusting the scrubber based on dew point – that greatly reduced limestone usage.

“We’ve slowly been moving this route as you can’t make a change in operations overnight, and by 2019 we started seeing the benefit,” Bray said. “We reached payback in the first year, and the project paid for itself with the savings.”