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Case File No. 2026-07

The Battery GambitAn investigation into Irish energy storage markets

"The numbers told one story. The projections told another. Somewhere between the two, the truth was hiding in the shadows."

Filed: 21 Feb 2026 — 02:47 AM — Dublin Field Office
Classified // Eyes Only
I

The stated returns don't add up. Project developers claim 5-6% IRR, but independent analysis of the cash flows tells a different story—closer to 1-3% under realistic conditions.

II

Revenue stacking is the only game in town. No single market mechanism pays enough. Operators must layer wholesale arbitrage, DS3 services, and capacity payments to survive.

III

The pipeline tells a cautionary tale. Over 2.4 GW of battery storage in the planning pipeline, but the market can only support a fraction of that capacity profitably.

IV

The smart money is waiting. Sophisticated investors see the long-term potential but recognize that the current regulatory framework creates too much uncertainty for large commitments.

€141
Avg MWh Price
2.4GW
In The Pipeline
~3%
True IRR
Exhibit B // Market Analysis
Chapter I

The Arbitrage Illusion

Wholesale spreads look attractive on paper, but real-world constraints—degradation, curtailment, forecast error—cut deep into projected revenues.

Chapter II

Following the Contracts

DS3 system service contracts are the lifeline, but they're limited, competitive, and subject to regulatory revision at any time.

Chapter III

The Capacity Market Angle

Capacity remuneration mechanisms provide a floor, but at rates insufficient to justify investment on their own terms.

Chapter IV

Who Benefits?

Developers, ratepayers, and grid operators all have different incentives. The alignment problem isn't just theoretical here.

Chapter V

The Technology Race

Lithium-ion dominates today, but sodium-ion and flow batteries wait in the wings, threatening to upend existing investments.

Chapter VI

The Verdict

The data says "wait." The market says "rush." In this town, knowing which voice to trust is everything.