The BESS Readiness Index: Czechia, Portugal, Greece, Ireland

Renewable energy capacity is expanding faster than the flexibility resources needed to manage it. This structural mismatch is creating a costly reality for developers across Europe: rising curtailment, grid congestion, and declining wholesale prices during periods of oversupply. In Greece, solar producers already saw revenue losses of approximately 20% in 2025 due to curtailed generation.

Battery Energy Storage Systems (BESS) are the primary tool to fix this imbalance, yet the path to deployment varies wildly between borders. Our latest white paper, The BESS Readiness Index: Czechia, Portugal, Greece, Ireland, provides a straightforward assessment of which markets are ready for investment and which ones still face significant regulatory bottlenecks.

We evaluated these four distinct markets based on regulatory maturity, revenue opportunities, and curtailment pressure to help you prioritize your capital allocation. Whether you are looking at the five-year payback potential in the newly opened Czech market or the diversified revenue stacks in Ireland, this report identifies where the most certain opportunities lie.

Key takeaways you will find in the index:

• The 'Execution gap' in Greece: Discover why 900 MW of contracted BESS capacity remains stalled and the specific regulatory hurdles preventing projects from reaching the grid.
• The five-year payback window: Learn which specific market conditions in Czechia are currently driving Internal Rates of Return (IRR) above 15% for early movers before the market saturates.
• The €99 mln opportunity: Get the details on Portugal's 'Flexibility and Storage' incentive program and how it is shaping the transition toward a hybrid solar-plus-storage model.
• The Irish revenue blueprint: Analyze the diversified revenue stack - including DS3 and capacity payments - that has allowed Ireland to build 1.4 GWh of operational capacity.
• The 35% revenue cliff: Understand the projected timeline for when ancillary service markets in Central Europe will become oversupplied, shifting the primary income source to energy arbitrage.

Access the full 'BESS Readiness Index'

Stop navigating the European storage market in the dark. Secure your copy of the report to get the full data on permitting timelines, revenue stack maturity, and project pipelines across these four key markets.