Beyond the Boilerplate: Structuring Bespoke Credit Support and Force Majeure Annexes in CEE Energy Arbitrage
The EFET Form Is Only the Starting Point
The EFET General Agreement remains one of the core contractual frameworks for European over-the-counter power and gas trading. Energy Traders Europe, the organisation previously known as EFET, consolidated its Power and Gas General Agreements in 2025. The documents provide a common architecture for individual trades, payment, default, termination and force majeure.
That standardisation is valuable because a trading desk should not renegotiate the legal foundation of every forward, spot or shaped product from zero. The commercial weakness appears when the standard form is treated as if it already solves the specific risks of a cross-border arbitrage route.
A spread between HUPX, OPCOM and a Ukraine-linked market can disappear because capacity was not allocated, a TSO changed the operational position, a regulatory restriction interrupted the route or a counterparty demanded collateral precisely when liquidity was needed for the next auction. The EFET agreement may still be perfectly valid while the economics of the trade have already broken.
For 2026 trading desks, the drafting question is therefore operational: which events should change delivery obligations, collateral requirements, close-out exposure or the right to use an alternative route, and how quickly must those mechanisms activate?
Where Standard EFET Documentation Stops Protecting the Spread
Three risk layers repeatedly appear in CEE electricity arbitrage. Each sits in a different legal document and each can damage the same trading margin.
Commodity Performance
The EFET General Agreement and Individual Contract govern the electricity or gas transaction itself, including delivery, payment, default, termination and contractual relief.
Cross-Border Capacity
Transmission rights follow the applicable allocation framework, border-specific annexes, market-coupling arrangements and TSO rules. Capacity rights do not arise from the EFET contract.
Credit & Liquidity
The Credit Support Annex can collateralise market-price exposure between counterparties. Its thresholds, valuation mechanics and transfer obligations can determine whether a profitable position remains financeable.
The contract package has to connect those layers. A capacity event should trigger the contractual consequence the parties actually intend, and a collateral call should reflect the risk that remains after capacity, delivery and replacement options are considered. For trading houses building these structures across several markets, our Legal Support for Energy Arbitrage practice covers EFET documentation, capacity access, settlement and transaction-specific regulatory review.
Capacity Risk Is Corridor-Specific
There is no single JAO rulebook that governs every European border and every capacity product. The legal review has to start with the precise corridor, delivery period and allocation method.
For EU internal borders, the 2026 Harmonised Allocation Rules govern long-term transmission rights within their scope. Day-ahead and intraday capacity on highly coupled EU borders is often allocated implicitly through market coupling, which means the trader does not buy a separate daily transmission right for the coupled transaction.
Great Britain requires a separate analysis. JAO publishes dedicated access or allocation rules for individual interconnectors and borders, including links between Great Britain and continental Europe. A France-facing trade through IFA or ElecLink therefore cannot be documented as if it were an ordinary EU internal-border capacity position.
Ukraine-linked trading has another rule set. JAO published dedicated 2026 daily allocation rules for Ukrainian borders and, in July 2026, separate intraday capacity allocation rules for the Ukraine-Hungary and Ukraine-Slovakia borders. The capacity product, eligibility requirements, nomination mechanics and settlement consequences must be checked against the applicable border rules before the commodity trade is treated as executable.
This distinction matters when drafting the EFET transaction confirmation. A trader can contract to deliver power across a border only to discover that its assumed capacity route is unavailable, non-transferable or subject to a different allocation mechanism. The contract should therefore identify the relevant capacity assumption and state what happens if that assumption fails.
The Legal Default: When a Regulatory Restriction Becomes a Force Majeure Dispute
The Counterparty Position
A counterparty may argue that a regulatory restriction, TSO action or import-export limitation prevents performance and therefore qualifies for contractual force majeure relief. If that position is accepted without further analysis, the affected party may suspend delivery while the trader remains exposed to replacement purchases, hedges, capacity costs or forward commitments elsewhere in the portfolio.
The Trader's Exposure
The legal question is highly fact-specific. A legal prohibition on delivery, a TSO curtailment, failure to secure capacity and a collapse in the commercial spread are different events. They may produce different results under the same EFET framework because prevention of performance, causation, mitigation and notice requirements must each be tested.
A bespoke force majeure annex should remove ambiguity around the events most likely to affect the relevant corridor. It can define the treatment of regulatory prohibitions, TSO restrictions, loss of allocated capacity, suspension of nominations and alternative delivery routes. It should also specify evidence, notice timing, mitigation duties and the financial consequence of the event.
The critical drafting point is the difference between physical impossibility and economic deterioration. A narrower spread, a more expensive replacement route or an adverse auction result does not automatically prevent contractual performance. If the parties want those events to trigger price re-openers, alternative delivery or a defined unwind mechanism, that consequence should be written into the contract directly.
Credit Support Should Follow the Real Exposure
Energy Traders Europe describes its Credit Support Annex as the collateral framework used to mitigate market-price exposure through collateral transfer. The standard document provides the legal machinery. The negotiation still determines how aggressively that machinery consumes liquidity.
For an arbitrage desk, a fixed collateral threshold can become expensive when price volatility, forward exposure and capacity payments move at different speeds. The useful negotiation points include threshold amounts, minimum transfer amounts, eligible collateral, valuation timing, cure periods and the circumstances in which a party can demand additional security.
A bespoke structure can also introduce credit deterioration triggers tied to objective events, including carefully defined Material Adverse Change criteria. Such a trigger should identify measurable conditions and contractual consequences. A vague right to demand more collateral whenever a party considers market conditions adverse creates its own dispute risk.
JAO auction outcomes can be incorporated as operational inputs where they are genuinely relevant to exposure. For example, the parties may agree that confirmed capacity allocation changes the volume treated as deliverable or adjusts the exposure calculation for a defined transaction. JAO itself does not determine EFET collateral requirements, so the link must be created contractually and must remain consistent with the applicable auction rules.
A deeper explanation of collateral mechanics is available in our article on negotiating the Financial Annex of the EFET Master Agreement.
REMIT II Changes the Compliance Layer, Not the Commercial Bargain
Regulation (EU) 2024/1106 materially expanded the EU REMIT framework. It introduced an express definition of algorithmic trading and Article 5a requirements for effective systems, risk controls, trading thresholds, testing, monitoring and business continuity for market participants engaging in algorithmic trading.
Those duties matter to an EFET-based trading relationship when automated execution, capacity signals or spread algorithms influence orders and portfolio decisions. The contract can allocate cooperation obligations, record preservation, data exchange, notification procedures and responsibility for failures in automated workflows.
The agreement cannot contract away statutory REMIT obligations. A clause labelled “REMIT II compliance” should therefore be precise about the contractual duties between the parties while recognising that ACER and national regulators apply the Regulation independently of the bilateral contract.
The United Kingdom requires separate treatment. EU REMIT II does not simply extend into Great Britain. GB wholesale energy trading remains subject to the UK version of REMIT, monitored and enforced by Ofgem. A group trading across France, Germany and Great Britain may therefore need parallel compliance mapping even where the commercial trades are documented under the same master agreement.
Case Study: €180,000 Forward-Contract Settlement Through VIAC Mediation
Nykitenko Legal acted in a dispute arising from a forward electricity supply contract after a cross-border performance conflict placed the expected trading spread at risk.
The matter was structured for settlement through mediation under the VIAC framework. The current Vienna Mediation Rules are the 2021 rules in the version effective from 1 January 2025 and apply to proceedings commenced after 31 December 2024 unless the parties agree otherwise.
The settlement preserved the commercial route to recovery and resulted in payment of a €180,000 compensating spread. The matter was resolved without court-ordered asset blocking, allowing the parties to close the financial exposure without adding a parallel asset-freezing dispute.
The case illustrates why dispute clauses belong in the trading architecture from the outset. Governing law, forum, escalation, interim-relief options and settlement mechanisms should be chosen when the EFET package is negotiated, while the trading desk still has leverage and before an operational disagreement becomes a balance-sheet event.
Where a trading dispute has already crystallised, International Arbitration for Energy Sector Disputes covers early dispute assessment, settlement strategy, arbitration and enforcement across cross-border energy contracts.
What to Negotiate Before the First Cross-Border Position Is Opened
- Identify the exact capacity route. Map the bidding-zone border, allocation product, applicable JAO or interconnector rules, nomination process and fallback route.
- Separate capacity failure from commodity default. State whether loss of capacity suspends delivery, triggers replacement performance, permits an alternative point or leaves the original obligation intact.
- Draft force majeure around specific events. Regulatory prohibitions, TSO restrictions and physical interruption should have defined tests, notice requirements and financial consequences.
- Model collateral against the trading cycle. Test threshold, valuation and transfer mechanics against auction payments, forward mark-to-market exposure and the liquidity needed to keep the arbitrage strategy operational.
- Use objective credit triggers. Material Adverse Change language should rely on defined indicators rather than unrestricted discretion.
- Document the link to JAO outcomes. If allocated capacity changes deliverable volume or exposure, specify the source document, timing and calculation rule.
- Keep REMIT controls outside the pricing formula. Contractual cooperation clauses should support regulatory compliance without pretending to replace statutory obligations.
- Choose the dispute route before volatility arrives. Escalation, mediation, arbitration, interim relief and enforcement should fit the jurisdictions where the counterparties and assets are located.
Conclusion: Protect the Spread Before It Exists
Cross-border energy arbitrage is often presented as a pricing exercise. In practice, the spread is only monetisable when four systems remain aligned: the commodity contract, transmission capacity, collateral mechanics and regulatory compliance.
The EFET General Agreement gives traders an efficient common framework. The commercial protection comes from the negotiated layers around it. A force majeure annex can define the consequences of border restrictions. A calibrated Credit Support Annex can prevent collateral calls from consuming the liquidity needed to execute the strategy. Capacity provisions can connect JAO outcomes to the actual delivery model. Compliance clauses can create a workable record for trading and risk teams under the relevant EU or UK regime.
In structures involving HUPX, OPCOM and Ukraine-linked spreads, these mechanics can determine whether an apparent arbitrage opportunity survives the period between auction, nomination, delivery and settlement. The legal work is most valuable before the position is opened, when the parties can still decide where each operational and financial risk should sit.