A bold analysis of battery storage economics in Ireland. The state of the market demands clear-eyed assessment, not optimistic projections.
Battery cell costs have fallen 90% since 2010, yet total installed costs for grid-scale systems have not declined at the same rate. The gap between cell economics and project economics is significant.
Revenue stacking is the only viable path. No single market mechanism—not arbitrage, not DS3, not capacity payments—can support a BESS investment alone. All three are required.
The pipeline exceeds market capacity. 2.4 GW of planned battery storage cannot be profitably absorbed. Many projects in the queue will never be built.
Financial projections carry systematic bias. Developers report 5-6% IRR. Independent analysis reveals 1-3%. The numbers do not lie, but the presentations do.
The promise of buying low and selling high. In practice, degradation, curtailment, and forecast errors erode margins heavily.
Ireland's ancillary services market provides the most stable revenue, but contracts are limited and competition grows fiercer each year.
A guaranteed floor for availability, but insufficient alone to justify the capital expenditure of a grid-scale battery installation.
Lithium-ion dominates, but sodium-ion and iron-air wait to disrupt. Investing now risks being overtaken by cheaper chemistry.
The rules change without warning. What is profitable today may be untenable tomorrow. Policy risk cannot be hedged.
The data demands patience. The opportunity exists, but the time for action has not yet arrived. Wait for clarity.