What is BS EN IEC 62933‑5‑2 about?
BS EN IEC 62933‑5‑2 discusses electrical energy storage (EES). BS EN IEC 62933‑5‑2 details best practices for safety in grid-integrated EES systems of electrochemical-based systems. BS EN IEC 62933‑5‑2 describes safety aspects for people and their surroundings for grid-connected energy storage systems (ESS) where an electrochemical storage subsystem is used.
This safety standard applies to the entire life cycle of battery energy storage systems (BESS) - from design to end of service life management. All the electrical energy storage systems (EESS) follow the general safety requirements as described in IEC TS 62933-5-1, which is based on a systems approach. IEC 62933-5-2 follows the same structure as IEC TS 62933-5-1 and provides additional requirements for BESS.
Who is BS EN IEC 62933‑5‑2 for?
BS EN IEC 62933‑5‑2 on grid-integrated EES systems is useful for:
- Electric energy storage system manufacturers and suppliers
- Government agencies managing power supply
- Power regulatory authorities
Why should you use BS EN IEC 62933‑5‑2?
A grid integration study is an analytical framework used to evaluate a power system with high penetration levels of variable renewable energy (RE). BS EN IEC 62933‑5‑2 provides further safety provisions that arise due to the use of an electrochemical storage subsystem (for example - a battery system) in energy storage systems that are beyond the general safety considerations described in IEC TS 62933-5-1.
BS EN IEC 62933‑5‑2 specifies the safety requirements of an “electrochemical” ESS as a "system" to reduce the risk of harm or damage caused by the hazards of an electrochemical energy storage system due to interactions between the subsystems as presently understood.
An assessment and reduction of the risk associated with the BESS as manufactured and as intended to be installed shall be conducted according to the sequence given in BS EN IEC 62933‑5‑2. Risks can depend on many factors including location, chemistry, and the size/scale (for example- power) of the BESS and will need to be assessed accordingly. Overall, BS EN IEC 62933‑5‑2 helps you to mitigate risks associated with ESS.