Case Study: Wyodak Station

Located in Gillette, Wyoming, this 365 MW coal-fired plant has a 365 MW steam turbine (down exhaust). It was placed into commercial operation in 1979. The first ACC supplied to this client was Neil Simpson I (see photo).

To meet the extremely cold weather conditions, GEA recommended an ACC comprised of 69 cells. The system includes two 11x3 configurations (butterfly design) and three additional prototype cells (single-row tube bundles). At the time, it was the largest ACC in the world and the first to utilize single-row tube bundles.

GEA's design met or exceeded the following conditions:

first installation to utilize a single row tube
extremely cold weather (-48°F)

GEA's ACC systems have operated here successfully and reliably for more than 35 years without causing a single hour of forced outage.

Prior to Wyodak, GEA supplied the Neil Simpson I ACC in 1968 (see righthand side of photo). The site has since installed two additional ACC units (Neil Simpson II and Wygen I) for a total of four ACCs.

		Reliability. Powered by Experience.