In energy markets, regulation can sometimes be more decisive than price itself. The Regulation on Transparency and Market Distorting Behaviours in Energy Markets and Environmental Markets, which will enter into force on 1 June 2026, is a strong example of this. It is not merely another piece of secondary legislation. From an energy law perspective, it represents a significant step toward redefining the rules of the game in Turkish energy and environmental markets.
At first glance, the Regulation may seem like a technical legal text dealing with transparency, disclosure of inside information, market abuse, supervisory responsibilities and administrative sanctions. However, its real importance lies in the fact that it consolidates and systematizes a number of obligations that have so far been regulated in a more fragmented way. While transparency obligations were already familiar, especially in organized wholesale electricity markets, this new Regulation goes further. It does not only address which data must be disclosed, but also which types of conduct may amount to unlawful market behaviour.
In my view, the most critical contribution of the Regulation is that it clarifies three areas that have long been relevant in practice but have not always been articulated with the same degree of precision in the language of energy law: inside information, insider dealing / misuse of inside information, and market manipulation. These concepts are well known to those familiar with capital markets law. Their explicit adaptation to the energy and environmental markets context will have major implications for generators, suppliers, portfolio managers, aggregators, balancing responsible parties, market operators and other market participants.
Under the Regulation, information such as planned or unplanned outages, plant unavailability, production constraints, storage data, transmission capacity issues and other information capable of materially affecting prices may fall within the scope of inside information. In practical terms, this means that for many market players, the challenge will no longer be limited to making commercial decisions. They will now also need to determine what qualifies as inside information, when it must be disclosed, through which platform, and in what form. This creates a much more demanding compliance environment.
The introduction of the Inside Information Platform is particularly important from an energy law perspective. Its purpose is to reduce information asymmetry, strengthen equality of opportunity among market participants and support more reliable price formation. If implemented effectively, this can be a real advantage for investors and well-governed market players. Greater transparency may contribute to reduced speculation risk, more predictable market behaviour and more credible price signals.
That said, like any transparency regime, the Regulation also creates new legal and commercial risks. The most obvious risk lies in the practical difficulty of determining what exactly constitutes inside information, at what point disclosure becomes mandatory, and under which circumstances delayed disclosure may be justified. The text allows delayed disclosure in limited cases, but only subject to strict conditions. If those conditions are later found insufficient by the Authority, the market participant may face administrative sanctions. As a result, companies will need more than operational readiness; they will need robust internal information management and disclosure governance systems.
Another key point is that the Regulation is not limited to the electricity market. Its scope extends to the futures electricity market, day-ahead market, intraday market, balancing power market, ancillary services market, futures natural gas market, spot natural gas market, emissions trading system market, organized renewable energy guarantee market, and wholesale bilateral agreements related to these markets. This broad scope clearly indicates that in Turkey, energy law and environmental market regulation are no longer to be treated as separate spheres. Carbon markets, environmental certificates and energy trading are now being brought into a more integrated regulatory framework.
For market participants, one of the most important consequences will be the increase in compliance costs. Generation and supply companies are likely to revisit their disclosure procedures, crisis reporting systems, lists of authorized persons, data security arrangements and internal decision-making chains. In particular, where a technical failure, an unplanned outage or a capacity reduction occurs, the issue will no longer be purely operational. It will also become a matter of legal qualification and disclosure timing.
The Regulation is also highly relevant for aggregators. It expressly includes them in the definition of market participants and places disclosure-related obligations on them with respect to facilities included in their portfolios. At the same time, facility owners are under an obligation to promptly inform the aggregator. This dual structure may create contractual and evidential disputes where the flow of information is not properly documented. In other words, aggregators will now need to pay close attention not only to commercial optimization, but also to information flow, timestamping, notification chains and allocation of liability in their contracts.
From the perspective of institutional actors such as EPİAŞ, TEİAŞ and BOTAŞ, the Regulation signals another important transformation. Market operators are no longer expected to function merely as passive publication platforms. They are now required to establish dedicated market monitoring units, employ sufficient personnel, detect suspicious transactions, report findings to the Authority and ensure the Authority’s continuous and real-time access to relevant data. This reflects a shift toward a more data-driven and technologically enabled supervisory architecture in Turkish energy markets.
Perhaps the clearest message of the Regulation lies in its sanctions regime. Failures relating to disclosure of inside information, misuse of inside information, market manipulation and even attempts to commit such acts may trigger significant administrative fines. In addition, the available measures go beyond monetary sanctions: additional collateral requirements, blocking of receivables, suspension or cancellation of transactions, and temporary trading bans may also be imposed. This means that the new framework is not merely about “good compliance practice”; it is about the continuity of market access and trading activity.
So what can this Regulation bring to the market if implemented well? Quite a lot. It may support more reliable price formation, increase predictability, improve legal certainty for investors, strengthen the institutional character of carbon and environmental markets, and reduce information asymmetries between different categories of market participants. From the standpoint of international investors, regulatory transparency and market discipline are key indicators of market maturity. In that sense, the Regulation sends a meaningful signal.
At the same time, the real test will not be the wording of the Regulation itself, but its implementation. The future practice of the Authority, secondary decisions of the Board, guidance on what qualifies as inside information, the boundary between trade secrets and disclosure obligations, and the practical criteria for identifying suspicious transactions will determine whether this new regime enhances confidence or creates new uncertainty. If implemented in a balanced and predictable way, it can strengthen the market. If applied too aggressively or too ambiguously, it may instead generate excessive caution and reduce trading appetite.
In conclusion, the Regulation entering into force on 1 June 2026 signals the beginning of a new phase in Turkish energy law. The key themes of this phase are clear: transparency, compliance, monitoring, data governance and institutional responsibility. For companies operating in or around Turkish energy and environmental markets, the question should no longer be: “Should we wait and see how this Regulation will be applied?” The more relevant question is: “What internal systems, contractual structures and compliance controls should we build today in order to be ready when it enters into force?”
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