BS EN ISO 15118-21:2025 - Road Vehicles Communication Interface Standard

Welcome to the future of vehicle-to-grid communication with the BS EN ISO 15118-21:2025 standard. This comprehensive document is your gateway to understanding and implementing the latest advancements in the communication interface between road vehicles and the grid. Released on October 6, 2025, this standard is a must-have for professionals in the automotive and energy sectors.

Overview

The BS EN ISO 15118-21:2025 standard is a pivotal document that outlines the common 2nd generation network layer and application layer requirements for vehicle-to-grid communication interfaces. This standard is essential for ensuring seamless and efficient communication between electric vehicles and the power grid, facilitating the integration of renewable energy sources and enhancing the overall efficiency of energy distribution.

Key Features

• Standard Number: BS EN ISO 15118-21:2025
• Pages: 332
• Release Date: October 6, 2025
• ISBN: 978 0 539 21095 8
• Status: Standard

Why Choose BS EN ISO 15118-21:2025?

This standard is designed to meet the growing demands of the electric vehicle industry and the energy sector. By adhering to the guidelines set forth in this document, manufacturers and service providers can ensure compatibility and interoperability between different systems, paving the way for a more sustainable and efficient energy ecosystem.

Comprehensive Coverage

With 332 pages of detailed information, the BS EN ISO 15118-21:2025 standard provides a thorough examination of the requirements for vehicle-to-grid communication. It covers both the network layer and application layer, ensuring that all aspects of communication are addressed.

Future-Proof Your Operations

As the automotive and energy industries continue to evolve, staying ahead of the curve is crucial. This standard equips you with the knowledge and tools needed to future-proof your operations, ensuring that your systems are ready to accommodate new technologies and innovations.

Enhance Energy Efficiency

By implementing the guidelines outlined in this standard, you can optimize the energy efficiency of your systems. This not only benefits the environment by reducing carbon emissions but also leads to cost savings for businesses and consumers alike.

Who Should Use This Standard?

The BS EN ISO 15118-21:2025 standard is ideal for a wide range of professionals, including:

• Automotive manufacturers and engineers
• Energy providers and grid operators
• Electric vehicle charging infrastructure developers
• Renewable energy specialists
• Regulatory bodies and policymakers

Conclusion

In a world where sustainability and efficiency are paramount, the BS EN ISO 15118-21:2025 standard is an invaluable resource. By providing a clear and comprehensive framework for vehicle-to-grid communication, this standard helps drive the transition towards a more sustainable future. Whether you're an industry veteran or a newcomer, this document is an essential addition to your professional library.

Embrace the future of vehicle-to-grid communication with the BS EN ISO 15118-21:2025 standard and be part of the movement towards a cleaner, more efficient energy landscape.

BS EN ISO 15118-21:2025

This standard BS EN ISO 15118-21:2025 Road vehicles. Vehicle to grid communication interface is classified in these ICS categories:

• 43.120 Electric road vehicles

This document specifies conformance tests in the form of an abstract test suite (ATS) for a system under test (SUT) that implements an electric-vehicle communication controller (EVCC) or a supply-equipment communication controller (SECC) for all common requirements specified in ISO 15118-20 that are independent of a particular charging type (AC, DC, ACD, WPT charging). These conformance tests specify the testing of capabilities and behaviours of an SUT, as well as checking what is observed against the conformance requirements specified in ISO 15118-20 and against what the implementer states the SUT implementation's capabilities are. The capability tests within the ATS check that the observable capabilities of the SUT are in accordance with the static conformance requirements specified in ISO 15118-20. The behaviour tests of the ATS examine an implementation as thoroughly as practical over the full range of dynamic conformance requirements specified in ISO 15118-20 and within the capabilities of the SUT. A test architecture is described in correspondence to the ATS. The abstract test cases in this document are described leveraging this test architecture and are specified in descriptive tabular format covering the ISO/OSI layer 3 to 7 (network to application layers). In terms of coverage, this document only covers normative sections and requirements in ISO 15118-20. This document additionally refers to specific tests for requirements on referenced standards (e.g. IETF RFCs, W3C Recommendation, etc.) if they are relevant in terms of conformance for implementations according to ISO 15118-20. However, it is explicitly not intended to widen the scope of this conformance specification to such external standards, if it is not technically necessary for the purpose of conformance testing for ISO 15118-20. Furthermore, the conformance tests specified in this document do not include the assessment of performance nor robustness or reliability of an implementation. They cannot provide judgments on the physical realization of abstract service primitives, how a system is implemented, how it provides any requested service, or the environment of the protocol implementation. Furthermore, the abstract test cases specified in this document only consider the communication protocol and the system's behaviour specified in ISO 15118-20. Power flow between the EVSE and the EV is no prerequisite for the test cases specified in this document.