#283 Ottawa Gas Turbine Combined Cycle Power Plant, 1967

GE introduced the pre-engineered combined cycle to the electric power industry in 1967 under the tradename STAG, which stands for STeam And Gas.  The same year, the city of Ottawa, KS commissioned the first STAG unit, an 11-megawatt model 103, forever changing the energy landscape with an influx of pre-engineered systems that would follow.

Ottawa demonstrated the efficacy of a pre-engineered combined cycle of relatively simple design for producing electric power reliably and at low cost in baseload service.

As the world’s first Gas Turbine Combined Cycle (GTCC), the STAG used only one unit of fuel to power its two heat engines, and to this day, GTCCs are known to produce some of the highest power plant thermal efficiencies in history.

In thermodynamic circles, the sheer innovation and superior performance inherent in the STAG places it atop the proverbial list of engineering marvels.    

Landmark Location

Ottawa, Kansas, USA

Landmark recognition date

September 13, 2024

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