Sullivan has a combined cycle, 2x1 power block and two (2) legacy simple cycle gas turbine generators. It is located off the Glenn Highway near Muldoon Road in Anchorage.
| Units | Commissioned | Power Rating | 
| No. 7 | 1979 | 81.8 megawatts | 
| No. 8 | 1984 | 85.0 megawatts | 
| No. 9 | 2016 | 48.9 megawatts | 
| No. 10 | 2016 | 48.9 megawatts | 
| No. 11 | 2016 | 28.9 megawatts | 
| Total 293.5 megawatts | ||