Safety analysis of energy storage stations

Can energy storage systems be scaled up?

The energy storage system can be scaled up by adding more flywheels. Flywheels are not generally attractive for large-scale grid support services that require many kWh or MWh of energy storage because of the cost, safety, and space requirements. The most prominent safety issue in flywheels is failure of the rotor while it is rotating.

What's new in energy storage safety?

Since the publication of the first Energy Storage Safety Strategic Plan in 2014, there have been introductions of new technologies, new use cases, and new codes, standards, regulations, and testing methods. Additionally, failures in deployed energy storage systems (ESS) have led to new emergency response best practices.

What are the gaps in energy storage safety assessments?

One gap in current safety assessments is that validation tests are performed on new products under laboratory conditions, and do not reflect changes that can occur in service or as the product ages. Figure 4. Increasing safety certainty earlier in the energy storage development cycle. 8. Summary of Gaps

Are beyond-Li-ion energy storage technologies safe?

Safety and degradation of beyond-Li-ion technology: Many emerging energy storage technologies are presented as ‘safer’ alternatives to Li-ion systems. Full, rigorous FMEAs still need to be completed for these new technologies to understand their unique safety and degradation profiles.

Why is energy storage important?

Energy storage has emerged as an integral component of a resilient and efficient electric grid, with a diverse array of applications. The widespread deployment of energy storage requires confidence across stakeholder groups (e.g., manufacturers, regulators, insurers, and consumers) in the safety and reliability of the technology.

What are electrochemical energy storage deployments?

Summary of electrochemical energy storage deployments. Li-ion batteries are the dominant electrochemical grid energy storage technology. Characteristics such as high energy density, high power, high efficiency, and low self-discharge have made them attractive for many grid applications.