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STEAG GmbH v. Kingdom of Spain (ICSID)

Why it matters

This award is one of many Spanish renewable energy cases under the ECT, but it is notable for its detailed quantification methodology, including a 25% deduction for investor contribution to damage and exclusion of historical damages. It clarifies how tribunals apply FET to regulatory changes and calculate compensation using DCF with adjustments for divestment and useful life.

Summary

STEAG GmbH, a German company, invested in a concentrated solar power plant in Spain through its subsidiary Arenales Solar. Spain introduced regulatory changes in 2013-2014 that reduced subsidies for renewable energy, allegedly violating the ECT's fair and equitable treatment (FET) standard. The tribunal found Spain liable for breaching FET but dismissed other claims. The award focused on quantifying damages: the tribunal set June 20, 2014 as the start date for damages, excluded historical damages (pre-2014 losses), applied a 25% deduction for STEAG's contribution to the damage, and considered the impact of a 2020 divestment. Using a discounted cash flow (DCF) method, the tribunal calculated compensation at EUR 27,675,000, plus interest at 1.5% quarterly compounded from June 20, 2014. The tribunal also allocated costs, ordering Spain to pay 70% of STEAG's legal costs and each party to bear half of ICSID costs.

The detail

Parties: STEAG GmbH v. Kingdom of Spain

Case number: ICSID Case No. ARB/15/4

Outcome: Spain violated the fair and equitable treatment standard under Article 10(1) of the ECT. Spain ordered to pay STEAG EUR 27,675,000 plus interest at 1.5% quarterly compounded from June 20, 2014 until payment.

Quantum: EUR 27,675,000

Applicable law: Energy Charter Treaty (ECT); ICSID Convention; Spanish law

Issues in play: The fair and equitable treatment (FET) standard under the ECT collided with Spain's sovereign right to modify its renewable energy subsidy regime. The tribunal balanced investor legitimate expectations against regulatory change.

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