This report analyses the cost of lithium-ion battery energy storage systems (BESS) within Europe's grid-scale energy storage segment, providing a 10-year price forecast by both system and tier one components. BESS Flexibility Purchase Agreements (FPAs) are bilateral, pricing is opaque, and valuations rely heavily on models and forecasts rather than real market data. We bring independent, market-based price intelligence to BESS FPAs – giving you a clear, consistent view of where. For distributors, wholesalers, and EPC contractors in the renewable energy sector, accurately forecasting the Total Landed Cost of an Energy Storage System (BESS) is paramount. The Irish government targets 80% renewables by 2030, requiring 9 GW of onshore wind, 5 GW of offshore wind, and 8 GW of solar on an all-island system that currently peaks at around 6. As Ireland and Northern Ireland transition to net zero and the volume of variable renewable generation in the electricity generation mix increases, there is a need for more flexibility provision. For a typical 1MW/2MWh (2-hour) grid-interactive container using LFP batteries, the cost distribution is as follows: Battery cells & modules (40–48%) – LFP cells.