How can Bess provide ancillary services?

The evolution of the power system requires reliable and rapid control of frequency deviation. BESS can provide very quick ancillary services; however, their limited energy reservoir must be taken into account when providing these services. This can be done by defining innovative requirements that implement degrees of freedom for SoC management.

Can ancillary services be a resource?

Quick ancillary services provided by battery energy storage systems (BESS) could be a resource in order to deliver fast and precise response to frequency events. Degrees of freedom in the design of innovative products traded on ancillary services markets give the asset manager room for developing state-of-charge (SoC) restoration mechanisms.

Is Bess a reliable ancillary solution?

While certain BESS technologies may be reliable and mature IRENA (2015a), with further cost reductions anticipated IRENA (2015b), economic concerns are still preventing BESS from becoming a mainstream solution for ancillary services in power grids Olatomiwa et al. (2016).

What are the Bess-based methodologies for long-term ancillary services?

Table 5 presents a summary of the BESS-based methodologies for long-term ancillary services, which are classified as congestion management, peak shaving, and power smoothing. For each journal article, the method, significant contributions, and limitations are summarized and presented in Table 5. TABLE 5. Summary of long term ancillary services.

What are long-term ancillary services?

The long-term ancillary services are reviewed for peak shaving, congestion relief, and power smoothing. Reviewing short-term ancillary services provides renewable energy operators and researchers with a vast range of recent BESS-based methodologies for fast response services to distribution grids.

Can Bess provide multiple grid ancillary services?

BESS has the technical capabilities for providing multiple grid ancillary services Jayasekara et al. (2015); Wang et al. (2018). However, the network providers and market operators may hesitate to deploy the BESS for those services if no regulations, legislation, or guidelines explicitly declare that BESS may do so Bhatnagar et al. (2013).