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Topic: POCO definition

User: ggunn, Location: Austin, TX, USA

Asked on: Tuesday, March 11, 2025 at 5:15 pm EDT
Answered on: Tuesday, March 11, 2025 at 5:16 pm EDT

Question: I have never seen an expansion of the acronym "POCO" until today. A set of drawings I am looking at has a definitions panel, and it says:POCO: POINT OF CHANGE OF OWNERSHIPTHE POINT WHERE OWNERSHIP OF THE ELECTRICAL FACILITIES CHANGES FROM THE INTERCONNECTION CUSTOMER TOTHE COMPANY.THE POCO MAY BE AT A UNIQUE POINT OR BE THE SAME AS THE PCC OR POI.Is that correct?

Yes, that is a correct and commonly used definition of POCO in the context of electrical drawings and power systems. Your drawing's explanation is accurate.Here's a breakdown: POCO

Point of Change of Ownership


Point where ownership changes

This is the key concept. It signifies the physical location where the responsibility and ownership of the electrical equipment transitions from one entity (the interconnection customer - often a private company or individual generating power) to another (the company - usually the utility company).

Interconnection Customer

This is the entity connecting their electrical system (like a solar farm, wind turbine, or generator) to the grid.


The Company

This refers to the utility company or the organization that owns and operates the electrical grid.

POCO may be at a unique point or be the same as the PCC or POI

This is important because the POCO
can sometimes coincide with other important points in the electrical system.

PCC (Point of Common Coupling)

This is the point on the utility's electrical system where the customer's system connects. It's where the customer's power flows into the grid.*

POI (Point of Interconnection):
This is often used synonymously with PCC, but can sometimes refer to a more broadly defined area of the connection.Therefore, the information that you provided is accurate. Flag for review

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