Abstract: A method of identifying a steam turbine includes defining a plurality of individual blocks that identify critical design features for a plurality of turbine sections, and separating each of the individual blocks with separators. Exemplary blocks are defined for, for example, turbine code type, rotational speed, maximum capability of structured design, nominal design conditions, high-pressure, intermediate-pressure and low-pressure block levels, high-pressure design type, low-pressure last stage bucket, and generator type. The identification number contains the minimum required set of criteria to identify a unique, structured turbine design. The number can be used to identify duplication as well as cost and design attributes that are significant for consistency across a power generation business.