
A 1MWh system: Costs between €695,000 and €850,000. Larger systems, like 5MWh, cost €3.5 million to €4 million, benefiting from economies of scale. Calculating initial costs involves assessing energy capacity, power requirements, and site-specific conditions.

This paper presents a bottom-up approach for techno-economic analysis of a Li-ion battery based Energy Storage System (BESS) to provide grid ancillary services under the “Delivering a Secure, Sustainable E.