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U.S. Registered Entities by Reliability Function
January 1, 2017

​Reliability Function
WECC​
NERC​
​Balancing Authority
34​
105​
​Distribution Provider
79​
362​
​Distribution Provider UFLS
7​45​
​Generator Operator
249​
875​
​Generator Owner
251​
920​
​Planning Authority
31​
70​
​Reliability Coordinator
1​15​
​Reserve Sharing Group
3​
14​
​Resource Planner
52​
171​
​Transmission Operator
50​184​
​Transmission Owner
76​
331​
​Transmission Planner
44​
186​
​Transmission Service Provider
35​
82​
​Unique Entities
370​
1,394​

Through the Compliance Monitoring and Enforcement Program (CMEP), NERC and Regional Entities, including WECC, assure reliability by holding entities in the Western Interconnection accountable for compliance with Reliability Standards.

Approximately 25 percent of all Registered Entities in the United States are under WECC's jurisdiction. As of January 1, 2017, there were 370 unique U.S. entities registered with NERC through WECC.

There are also international entities for which WECC provides certain oversight services. These entities are not included in the table.

NOTE: In some cases, multiple operational entities share a single registration, while other entities are split across multiple registrations.

For example, one entity operates two distinct BAs but has one registration. Two international entites are registered as BAs, while another operates a BA but is not registered as one. From an operational perspective there are 38 BAs. However, there are only 34 BAs registered with NERC in the WECC footprint.