Recent industry analysis reveals that lithium-ion battery storage systems now average €300-400 per kilowatt-hour installed, with projections indicating a further 40% cost reduction by 2030. This dramatic shift transforms the economics of grid-scale energy storage, making it an increasingly viable solution for Europe's renewable energy transition. 2023 2024 Source: ICC Battery, BloombergNEF. Note: The cell mentioned here is in prismatic format and excludes taxes. While we anticipate demand to regain momentum in 2025, much will depend on policymakers implementing the. Developer premiums and development expenses - depending on the project's attractiveness, these can range from £50k/MW to £100k/MW. Financing and transaction costs - at current interest rates, these can be around 20% of total project costs. An executive summary of major cost drivers is provided for reference, reflecting both.