UL Releases First Edition Standard for Electric Energy Storage Systems and Equipment

ps-electric-utility-smart-grid-bi-1200x600UL has released UL 9540, the First Edition of the Standard for Energy Storage Systems and Equipment.

UL 9540 has been issued to reflect the latest ANSI and SCC approval dates, and to incorporate the proposals dated November 13, 2015 and July 1, 2016. The first edition can now be purchased on UL’s website

Description*:

“1.1 These requirements cover energy storage systems that are intended to receive electric energy and then to store the energy in some form so that the energy storage system can provide electrical energy to loads or to the local/area electric power system (EPS) up to the utility grid when needed. The types of energy storage covered under this standard include electrochemical, chemical, mechanical and thermal. The energy storage systems equipment (constructed either as one unitary complete system or as matched assemblies that when connected are the system) may include equipment for charging, discharging, control, protection, power conversion, communication, controlling the system environment, air, fire detection and suppression system, fuel or other fluid movement and containment, etc. The system may contain other ancillary equipment related to the functioning of the energy storage system.

1.2 The systems covered by this standard include those intended to be used in a standalone mode (e.g. islanded) including “self-supply” systems to provide electric energy and those used in parallel with an electric power system or electric utility grid such as “grid-supply” systems, or applications that perform multiple operational modes.

1.3 Requirements for installation, with the exception of installation manuals and documents for installation provided with the system that are integral to the tested system are outside the scope of this standard. The installation instructions indicate that the energy storage systems are to be installed in accordance with the national and local electrical codes and other applicable codes. This standard assumes that the final installation of the energy storage system will be performed by qualified service personnel in accordance with the applicable installation instructions, installation practices and national installation codes. Energy storage systems are intended for installation subject to approval by the Authority Having Jurisdiction.”

*Description from UL’s Website.

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