Energy storage project design qualification requirements and standards

What are the requirements for a Bess energy storage system?

For a Lithium-ion Battery Energy Storage System (BESS), the components must comply with all codes and standards relevant to the operation and installation of energy storage equipment. All installed equipment must be tested and approved by Underwriters Laboratories (UL) or another nationally recognized testing facility.

Do energy storage systems need a safety assessment?

Safety Assessment: As more energy storage systems have become operational, new safety features have been mandated through various codes and standards, professional organizations, and learned best practices. The design and commissioning teams need to stay current so that required safety assessments can be performed during commissioning.

What safety standards affect the design and installation of ESS?

As shown in Fig. 3, many safety C&S affect the design and installation of ESS. One of the key product standards that covers the full system is the UL9540 Standard for Safety: Energy Storage Systems and Equipment . Here, we discuss this standard in detail; some of the remaining challenges are discussed in the next section.

Does industry need standards for energy storage?

As cited in the DOE OE ES Program Plan, “Industry requires specifications of standards for characterizing the performance of energy storage under grid conditions and for modeling behavior. Discussions with industry pro-fessionals indicate a significant need for standards ...” [1, p. 30].

Which components of a battery energy storage system should be factory tested?

Ideally, the power electronic equipment, i.e., inverter, battery management system (BMS), site management system (SMS) and energy storage component (e.g., battery) will be factory tested together by the vendors. Figure 2. Elements of a battery energy storage system

Should energy storage safety test information be disseminated?

Another long-term benefit of disseminating safety test information could be baselining minimum safety metrics related to gas evolution and related risk limits for crea-tion of a pass/fail criteria for energy storage safety test-ing and certification processes, including UL 9540A.