prSSH EN IEC 63402-1:2025

Energy efficiency - Customer energy management systems - Part 1: General requirements and architecture

Scope

IEC 63402-1:2025 specifies general requirements and the architecture between the Point of Common Coupling (PCC) and smart devices (SD) operating within the Smart Grid premises-side system (i.e. residential or commercial but not industrial premises).

This document does not include requirements for:

- safety

- electromagnetic compatibility (EMC);

- data security, as it is assumed that the underlying protocols will take the data security aspect into account

- special equipment (e.g. legacy heat pumps) with a direct physical connection to the grid, as such equipment bypasses the customer energy manager (CEM) and is not HBES/BACS enabled (covered by other standards than the IEC 63402 series).

This group EE publication is primarily intended to be used as an EE standard for the products mentioned in the scope, but is also intended to be used by TCs in the preparation of publications for products which are included in the boundary mentioned in the scope of this document.

It has the status of a group energy efficiency publication in accordance with IEC Guide 118.