Energy projects live and die by bankability. Lenders, sponsors, and contractors will often accept construction risk, resource risk, and even market risk—up to a point. But when the project’s entire repayment profile depends on whether electricity will be purchased at a predictable price, the legal structure behind an “energy purchase guarantee” becomes the core of the investment thesis.
In Turkey, purchase guarantees can arise from statutory support mechanisms, public tenders and auction-based schemes, long-term power purchase agreements (PPAs) with public or quasi-public offtakers, and public–private partnership (PPP) models. Each comes with its own dispute map, enforcement mechanics, and—crucially—its own relationship to state liability.
This article explains the main purchase guarantee structures in Turkey and provides a practical legal framework for assessing when the State (or a state-controlled counterparty) may be liable—whether due to contractual breach, unlawful regulatory acts, or lawful measures that impose a disproportionate burden on a limited group of investors.
1) What Counts as an “Energy Purchase Guarantee”?
In practice, “purchase guarantee” is an umbrella term used for several different legal promises, such as:
- Mandatory offtake (a designated supplier must buy electricity generated under defined conditions);
- Price support (a guaranteed tariff, premium, or “support price” applied to eligible generation);
- Capacity-based support (payments for availability or capacity rather than delivered kWh);
- Payment security enhancements (Treasury-backed guarantees, letters of comfort, escrow or debt assumption mechanisms).
The legal consequences depend on who promises what, under which instrument, and in which legal regime (public or private law).
2) The Statutory Backbone: Renewable Support and Mandatory Offtake
2.1. Renewable Energy Law and the “Support Price” Concept (YEKDEM)
Turkey’s main statutory foundation for renewable support is Law No. 5346 on the use of renewable energy resources for electricity generation. (enerjiapi.enerji.gov.tr)
In addition, the Turkish administrative judiciary has explicitly treated certain statutory purchase rights as mandatory: the Council of State (Danıştay) has reasoned that—where the relevant laws provide that surplus electricity must be purchased for a defined period at support prices—secondary legislation cannot narrow that right by introducing new limitations not found in the law. (T.C. Danıştay Başkanlığı)
That matters because a large portion of state-liability debates start here: investors price projects based on statutory entitlements, and disputes often arise when regulatory bodies attempt to reinterpret, limit, or retroactively affect those entitlements.
2.2. The Electricity Market Law: Market Design and the Role of Regulation
Law No. 6446 (Electricity Market Law) frames Turkey’s electricity market as a regulated but competitive system in which market participants typically operate under private-law rules, while the Energy Market Regulatory Authority (EPDK) oversees licensing, market conduct, and compliance. (www5.tbmm.gov.tr)
For investors, the take-away is straightforward: even when the market is “private-law oriented,” key revenue drivers remain regulation-dependent, and therefore susceptible to administrative acts (and administrative litigation).
2.3. Publicly Published Support Price Information and Operational Practice
Turkey’s market operator EPİAŞ publishes updated tables for applicable YEKDEM prices (including monthly data and local component add-ons), which is relevant both for compliance and for damages modelling in disputes. (epias.com.tr)
EPDK also maintains dedicated YEKDEM pages that collect official announcements, lists, and key regulatory documents relating to the support mechanism and applications. (epdk.gov.tr)
3) Auction/Tender-Based Schemes (YEKA) and Contractual Risk Allocation
Turkey’s YEKA framework is often discussed not only as a procurement tool, but as a risk-allocation template—especially for offtake, pricing, indexation, and change-in-law issues.
As a practical example, the Ministry of Energy and Natural Resources has published draft YEKA contract documents for consultation in recent tenders, illustrating how public offtake structures can be embedded into a contract set rather than relying solely on general market rules.
For project counsel, these contracts are where “state liability” becomes tangible:
- What happens if the offtaker delays commissioning acceptance?
- What constitutes force majeure vs. administrative action?
- How is “change in law” handled—and is compensation excluded, capped, or left open?
- Which forum hears disputes: Turkish courts, administrative judiciary, or arbitration?
4) PPP Models and Long-Term Offtake: Where “Guarantee” Looks Like a Concession
For large infrastructure or strategic projects, Turkey has long used PPP-style frameworks, including Build-Operate-Transfer (BOT) structures under Law No. 3996. (Enerji Bakanlığı)
In such models, the “purchase guarantee” is typically not a mere tariff rule; it is part of a broader concession-like arrangement. The dispute profile changes accordingly:
- The contract may be treated as a public service concession or a hybrid administrative contract.
- The state entity’s acts can be both contractual and regulatory—sometimes simultaneously.
- Dispute resolution may include arbitration clauses governed by specific legislation.
5) Dispute Resolution Architecture: Courts or Arbitration?
5.1. Arbitration in Public Service Concession Contracts (Law No. 4501)
Turkey’s Law No. 4501 explicitly addresses arbitration in public service concession contracts and sets principles for including arbitration clauses—particularly in agreements with a foreign element.
This becomes highly relevant for energy investors because many bankable offtake arrangements (especially in older BOT/BOO style projects) are structured as concessions or concession-like contracts where arbitration is the expected forum.
5.2. Treasury Guarantees and Debt/Guarantee Instruments (Law No. 4749)
When investors refer to “Treasury guarantee” in Turkey, they are usually referring to mechanisms governed within the public finance and debt management framework, notably Law No. 4749.
Not every project qualifies, and the existence (or absence) of a Treasury-backed instrument fundamentally alters enforcement strategy and credit analysis.
6) State Liability: The Core Legal Theories in Turkey
“State liability” is not a single claim. In Turkey, liability can arise under multiple pathways, and identifying the correct theory is often more important than arguing the merits loudly.
6.1. Contractual Liability (Breach by a Public Of taker or State-Owned Buyer)
If your project has a PPA or an offtake contract with:
- a state-owned enterprise,
- a state-controlled market entity, or
- a public administration acting as counterparty,
then the first question is contract classification:
- Pure private-law contract → Commercial courts typically have jurisdiction (subject to arbitration).
- Administrative contract / concession → Administrative courts may have jurisdiction unless arbitration is validly agreed, and public law principles can apply.
Practical tip: do not assume “state counterparty” automatically means administrative court. The governing law clause, contract type, procurement route, and statutory framework matter.
6.2. Liability for Unlawful Regulatory Acts (Annulment + Damages)
When a revenue-impacting rule is created by a regulation, communiqué, or board decision, two remedies often come into play:
- Annulment action to set aside the unlawful act; and
- Full remedy action (tam yargı) to claim damages caused by the unlawful act.
A key example of judicial reasoning here is Danıştay’s approach to secondary legislation that contradicts superior norms: the Council of State has emphasized that regulations must not conflict with the law and that rights granted by statute cannot be narrowed via regulation. (T.C. Danıştay Başkanlığı)
This type of reasoning is particularly relevant in energy, where “small” regulatory changes (metering rules, surplus sale limitations, settlement formulas, or eligibility criteria) can materially change cash flows.
6.3. Liability for Lawful Acts: “Equality of Public Burdens” (Fedakârlığın Denkleştirilmesi)
Sometimes the State’s act is lawful and still creates compensable harm because the burden is special and excessive, falling on a narrow group for the benefit of society.
Turkey’s constitutional jurisprudence and Danıştay’s administrative case law recognize strict (faultless) liability doctrines, including the principle known as “equality of public burdens” (also referred to as “balancing of sacrifices”). The Constitutional Court’s decisions discuss this doctrine and quote Danıştay’s definitions: where public acts impose a special and extraordinary loss on certain individuals, compensation may be required even absent fault. (Kararlar Bilgi Bankası)
Why this matters for energy projects:
- A lawful policy shift (e.g., a structural change in support design) may be defended as “public interest,” but if it disproportionately destroys vested project economics for a limited group, a compensation theory may become relevant—particularly when combined with legitimate expectation arguments and evidence of reliance.
6.4. Legitimate Expectations and Reliance in Energy Investments
Energy projects are front-loaded: permitting, land, grid connection, EPC, and financing happen long before stable revenues. Courts increasingly pay attention to reliance where the administration’s prior framework created a predictable basis for investment.
In the license-free generation context, Danıştay’s analysis includes discussion of investors’ reliance on the legal framework and market practice when they made investment decisions, and criticizes “confidence-shaking” administrative moves that undermine market stability. (T.C. Danıştay Başkanlığı)
For counsel, “legitimate expectation” is not just a slogan. It is built through:
- dated feasibility and financing documents,
- correspondence with the administration,
- grid connection and acceptance steps,
- regulatory guidance and official publications,
- and evidence of sector-wide established practice.
7) Litigation Strategy: What to Do When a Purchase Guarantee Fails
When revenue certainty breaks, the worst move is often an unfocused lawsuit. A good strategy is sequenced:
Step 1: Identify the Source of the Promise
- Statute (e.g., renewable support entitlement),
- Regulation/board decision,
- Contract (PPA/YEKA/BOT),
- Treasury guarantee instrument.
Step 2: Choose the Correct Forum and Remedy
- Annulment vs. damages vs. both;
- Administrative courts vs. commercial courts vs. arbitration;
- Interim relief (stay of execution / injunction) where appropriate.
Step 3: Build a Damages Model That a Court/Tribunal Can Trust
Courts want quantification grounded in reality. In energy, damages typically revolve around:
- lost support price payments (kWh × applicable tariff),
- additional balancing/settlement costs,
- financing break costs and covenant breaches,
- delay damages tied to acceptance and commissioning milestones.
EPİAŞ-published support price data and official YEKDEM materials often become part of the evidentiary backbone. (epias.com.tr)
Step 4: Don’t Ignore Mitigation and Compliance
Your claim can collapse if the defendant proves that the project:
- missed procedural deadlines,
- failed to meet eligibility requirements,
- contributed to losses via operational noncompliance.
8) Drafting and Structuring Tips to Reduce “State Liability” Risk (Before the Dispute)
The best state-liability case is the one you never need to file.
For projects that rely on a purchase guarantee, contract and project structure should be designed to withstand regulatory turbulence:
- Change-in-law framework
- Define “change in law” broadly (statute, regulation, board decision, interpretation shifts).
- Specify compensation formula or rebalancing mechanism.
- Payment security
- Escrow or waterfall structures;
- step-in rights;
- robust default and cure periods.
- Indexation / FX risk allocation
- Clarify which party bears inflation, FX, and market rule changes.
- Dispute resolution clause fit-for-purpose
- If concession-like, ensure compliance with arbitration enabling rules (Law No. 4501).
- Regulatory diligence pack
- Keep a “reliance file”: official announcements, applications, approvals, and internal investment committee papers.
9) Where Mining Projects Enter the Picture
Mining investments in Turkey often intersect with energy purchase and state-liability issues in two practical scenarios:
- Captive power / self-consumption projects (solar/wind) built to reduce operating costs at mine sites; and
- Industrial offtake contracts for processing facilities (refining, smelting, beneficiation) that depend on long-term power pricing.
In both cases, the risk is not only the power price, but also permit security and administrative stability—where unlawful permit revocations, unexpected restrictions, or abrupt policy changes can trigger annulment and compensation pathways, including strict liability theories in suitable cases. (Kararlar Bilgi Bankası)
10) International Angle: Investment Treaty Claims (When Applicable)
For cross-border investors, treaty-based protection is sometimes explored alongside domestic remedies, depending on the investor’s nationality and project structuring.
The Energy Charter Treaty (ECT) is widely known for enabling energy investors to bring claims against states for measures that harm investments; Reuters reporting on the EU’s planned withdrawal highlights the treaty’s continued protection for investors from other signatory countries, explicitly including Turkey among those referenced. (Reuters)
Treaty claims are highly technical (jurisdiction, fork-in-the-road, attribution, damages standards) and should be evaluated case-by-case against the domestic litigation strategy.
Frequently Asked Questions
Is YEKDEM “guaranteed” in the same way as a PPA?
Not exactly. A PPA is a contract-based promise; YEKDEM is a support mechanism whose eligibility and pricing are rooted in law and regulation. The legal tools differ: contractual enforcement vs. administrative litigation and statutory interpretation. (enerjiapi.enerji.gov.tr)
Can the State be liable even if it acted lawfully?
Yes—under strict (faultless) liability theories, including “equality of public burdens,” where a lawful public act imposes special and extraordinary loss on a limited group. (Kararlar Bilgi Bankası)
What is the single biggest mistake investors make?
Failing to preserve evidence of reliance and compliance. In practice, the winning file is the one that proves: (i) the promise, (ii) reliance, (iii) breach/unlawfulness or disproportionate burden, (iv) causation, and (v) a credible damages model.
Conclusion
Energy purchase guarantees in Turkey are not a one-size-fits-all concept. They can be statutory entitlements, contract-based offtake commitments, or PPP-linked risk allocations—each with a different litigation roadmap. When a guarantee fails, “state liability” may arise through contract breach, unlawful regulatory action, or even lawful measures that impose an unfairly concentrated burden.
If your project depends on guaranteed offtake or support pricing, the most value-creating legal work is done early: structuring, drafting, and building a defensible reliance and compliance record—so that if the framework shifts, you have both preventive leverage and credible remedies.
Yanıt yok