In GAA Unit records, the fuel code fields store values that identify the types of fuel used by a given unit. For each unit, the GE Digital APM system supports defining up to four levels of fuel that will be used, depending on availability.
Primary Fuel: The unit's first choice of fuel types. As long as this type of fuel is available, it will be used. This fuel type represents the fuel code for the fuel that made the greatest contribution to heat generation during the specified period.
Secondary Fuel: The type of fuel that will be used if the primary fuel is not available. This fuel type represents the fuel code for the fuel that made the second greatest contribution to heat generation during the specified period.
Tertiary Fuel: The type of fuel that will be used if the primary and secondary fuels are not available. This fuel type represents the fuel code for the fuel that made the third greatest contribution to heat generation during the specified period.
Quaternary Fuel: The type of fuel that will be used if the primary, secondary, and tertiary fuels are not available. This fuel type represents the fuel code for the fuel that made the fourth greatest contribution to heat generation during the specified period.
In GAA Unit records, fuel types are identified through codes. The GE Digital APM system supports the use of NERC fuel codes scheme.
In GAA Unit records, fuel types are identified through codes. The GE Digital APM system supports the use of fuel codes specified by the Regulatory Organization.
Note: Fuel code values are defined in GAA Fuel Types records. To see a list of these records, you can run the query GAA Fuel Types, which is stored in the following Catalog folder: \\Public\Meridium\Modules\Generation Management\Queries.