Ancillary Service Types - Global
AS Ancillary Service Types
Ancillary Service classification code AS covers "Ancillary Service Types" at level 1 of the Ancillary Service hierarchy.
Level 113 direct subcategories1 cross-system mapping
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AS in other classification systems
Equivalent and related codes across 1 other system. Click any code to see its full definition, hierarchy, and crosswalks.
Subcategories of AS Ancillary Service Types
- AS.01Frequency Regulation
- AS.02Spinning Reserve
- AS.03Non-Spinning Reserve
- AS.04Voltage Support
- AS.05Black Start Capability
- AS.06Ramping Service
- AS.07Reactive Power Support
- AS.08Load Following
- AS.09Operating Reserve
- AS.10Inertia Service
- AS.11Fast Frequency Response
- AS.12Primary Frequency Response
- AS.13Secondary Frequency Response
Frequently asked questions
- What is Ancillary Service AS?
- Ancillary Service AS is "Ancillary Service Types". Ancillary Service code AS covers "Ancillary Service Types" at level 1 of the Ancillary Service hierarchy.
- What does Ancillary Service AS include?
- AS Ancillary Service Types contains 13 direct subcategories: AS.01 Frequency Regulation; AS.02 Spinning Reserve; AS.03 Non-Spinning Reserve; AS.04 Voltage Support; AS.05 Black Start Capability; AS.06 Ramping Service; and more.
- How does Ancillary Service AS map to other classification systems?
- AS Ancillary Service Types has equivalents in NAICS 2022 (5419). These crosswalks let you translate this code between Ancillary Service and 1 other classification system.
- What is the parent category of AS?
- AS Ancillary Service Types sits under AS Ancillary Service Types in the Ancillary Service hierarchy.
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