Defined term
Point of common coupling
The point of common coupling is the point where an SDG&E customer generation facility connects to the utility's distribution system as defined by Electric Rule 21.
grid · Concept code GS-CONCEPT-185 · Last verified August 28, 2026
Evidence through 2023-08-06 · 0 sources have no source-event date
Content modified 2026-08-28
Definition and decision context
Definition
The point of common coupling is the point where an SDG&E customer generation facility connects to the utility's distribution system as defined by Electric Rule 21.
Applicable jurisdiction: US-CA
Verified August 28, 2026
Why it matters
Rule 21 treats the PCC as a defined tariff location and distinguishes it from the point of interconnection, not as a universal meter, service, or siting answer.
Applicable jurisdiction: US-CA
Verified August 28, 2026
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Primary sources
- San Diego Gas & Electric: SDG&E Electric Rule 21 § C Definitions — Point of Common Coupling, Sheet 21, Advice Letter 37543-E/AL4242-E, effective 2023-08-06
Revision SDG&E Rule 21 Advice Letter 37543-E/AL4242-E; effective 2023-08-06 · Source event as of August 6, 2023 · Ontology accessed August 28, 2026 · Ontology verified August 28, 2026