Concurrent Updates to Seven Regulations in the Energy Sector

Through the regulations published in the Official Gazette dated December 29, 2025, and numbered 33122, comprehensive amendments have been introduced to the following regulations relating to the energy sector, primarily the electricity market and including renewable energy:

• Electricity Market Balancing and Settlement Regulation
• Electricity Market License Regulation
• Electricity Market Ancillary Services Regulation
• Regulation on Storage Activities in the Electricity Market
• Regulation on Aggregation Activity in the Electricity Market
• Electricity Grid Regulation
• Regulation on Certification and Support of Renewable Energy Resources

The principal amendments introduced under these regulations are summarized below:

Electricity Market Balancing and Settlement Regulation: 

A requirement has been introduced that the settlement-based injection/withdrawal unit must be registered for generation license holders to include eligible consumers in their portfolios. The principles regarding the establishment of separate settlement-based injection/withdrawal units for storage units within storage-integrated generation facilities have been regulated. The balancing unit threshold applicable to standalone storage facilities has been reduced to 30 MW. Portfolio registration processes for aggregators have been clarified. These amendments will enter into force on January 01, 2026. Further details are available here.

Electricity Market License Regulation:

It has been stipulated that transfer, sale and lease transactions that are not completed within the prescribed period despite having obtained approval shall be deemed invalid. The method for determining the connection region in wind- and solar-based pre-license applications has been reorganized. The conditions relating to installed capacity and capacity changes for facilities incorporating storage units have been updated. The procedures to be followed for floating solar power plants and canal/reservoir-type solar power plants have been clarified. Connection conditions regarding the addition of integrated storage units and capacity changes have been determined. Management unbundling provisions applicable to distribution companies, incumbent suppliers and aggregator companies have been strengthened. The methods for calculating license fees in cases of mergers, divisions and facilities incorporating storage units have been reorganised. The amendments entered into force on December 29, 2025. Further details are available here.

Electricity Market Ancillary Services Regulation:

Amendments have been introduced to simplify the imbalance reimbursement calculation for secondary frequency control services and to shift from an hourly-based structure to a settlement-period-based structure, as well as to update the prices and coefficients used to align with the current market structure. In addition, the capacity procurement process and pricing rules for demand-side participation services have been clarified, and the procedures and conditions regarding the inclusion and exclusion of consumption facilities under ancillary services agreements have been specified. These amendments entered into force on December 29, 2025. Further details are available here.

Regulation on Storage Activities in the Electricity Market:

The establishment of storage facilities within unlicensed electricity generation facilities has been permitted. A rule has been introduced whereby no payment shall be made for energy supplied to the grid from storage units. It has been stipulated that energy exceeding the applicable limits in standalone storage facilities shall be deemed a gratuitous contribution to YEKDEM (Renewable Energy Resources Support Mechanism). These amendments will enter into force on January 1, 2026. Further details are available here.

Regulation on Aggregator Activities in the Electricity Market:

Monitoring and periodic reporting obligations regarding the prohibition on aggregators engaging in wholesale electricity sales activities have been assigned to the market operator. These amendments will enter into force on January 1, 2026. Further details are available here.

Electricity Grid Regulation:

The compliance period for reactive power obligations has been extended until January 01, 2027, and temporary lower thresholds have been introduced for pre-existing facilities. All unlicensed electricity generation facility owners have been included among the addresses of emergency measures. These amendments entered into force on December 29, 2025. Further details are available here.

Regulation on Certification and Support of Renewable Energy Resources:

The status of storage-integrated generation facilities and integrated storage units within the scope of YEKDEM has been clarified, and it has been explicitly regulated how energy supplied to the system after storage shall be taken into account in the calculation of the YEK (Renewable Energy Resources) price and the total YEK amount.

These amendments will enter into force on January 1, 2026, and further details are available here.