prSRPS EN 50779:2026

Electrical characteristics of grid-forming generating and storage units to be connected in parallel with electrical networks - functional requirements

Scope

The purpose of this document is to give a detailed description of the grid-forming functions to be implemented in generating units of non-synchronous generating technology.
This document relates to both the RfG European Network Code 2.0 and GRID FORMING CAPABILITY OF POWER PARK MODULES - REPORT ON TECHNICAL REQUIREMENTS (referred below as the REPORT) published in 2025.
In particular, reference is done to requirements described at high level in Articles Y, 20 and 21 of draft European Network Code RfG2.0 and in more detail in Chapter 2 of the REPORT.
The document is also fully coordinated with TS 50477-1 whose content is already aligned with chapter 3 of the REPORT.
Where appropriate, reference to 50549 Family Standards will be made.
The aim of this standardization work is to provide all EU Member States with a complete set of detailed standardization documents on GFM PPMs aiming to:
• ensure the compatibility of European Standards (EN) with the evolution of the legal framework;
• allow each Member State to define its national implementation of RfG and the definition of the roadmap according Articl Y(5) of draft RfG 2.0 easily and rapidly;
• help the provision of products for the single market, avoiding the need for RSOs to define their own specific requirements, thereby enabling Manufacturers to offer their products for different locations, reducing development time and effort.