What a battery can sell
What ancillary services can a battery sell in Türkiye electricity market?
Türkiye electricity market has 9 ancillary-service products, across 6 families — regulation, frequency containment, automatic frequency restoration, reactive power & voltage, black start & restoration and other services: Black Start and System Restoration, Balancing Power Market Down-Regulation, Balancing Power Market Up-Regulation, Demand-Side Participation Service, Instantaneous Demand Control, Primary Frequency Control, Reactive Power Support, Regional Capacity Leasing, and 1 more. Response timing, direction and eligibility for each are in the cards below, as the official sources state them.
Facts below are stated as the official sources state them. A missing line means the
source does not state that value — never that the value is zero.
Regulation
-
Balancing Power Market Down-Regulation
operational
Reduce generation or increase consumption to restore real-time balance.
- Direction
- downward
- Full activation
- 15 min
- Trigger / range
- TEİAŞ real-time balancing instruction
- Eligibility
- registered balancing units
- Typical procurement
- Dynamic or not publicly stated
- Pricing
- BPM marginal pricing/settlement rules
-
Balancing Power Market Up-Regulation
operational
Increase generation or reduce consumption to restore real-time balance.
- Direction
- upward
- Full activation
- 15 min
- Trigger / range
- TEİAŞ real-time balancing instruction
- Eligibility
- registered balancing units; units capable of at least 10 MW up/down change within 15 minutes are obligated to participate under the cited principles
- Typical procurement
- Dynamic or not publicly stated
- Pricing
- BPM marginal pricing/settlement rules
Fifteen minutes is the BPM availability/response criterion in the cited overview, not a frequency-triggered reserve time.
Frequency containment
-
Primary Frequency Control
operational; rules amended 29 December 2025
Automatically contain frequency deviations in Türkiye's synchronous operation.
- Direction
- upward and downward reserve capability
- Trigger / range
- full certified reserve is activated at a frequency deviation of plus or minus 200 mHz under the 29 December 2025 regulation
- Eligibility
- certified ancillary-service units meeting TEİAŞ testing and telemetry requirements
- Typical procurement
- Dynamic or not publicly stated
- Pricing
- capacity price set by the highest accepted offer in TL/MW-hour
The cited regulation supports the trigger and procurement design but does not state one full-activation deadline.
Automatic frequency restoration
-
Secondary Frequency Control
operational; rules amended 29 December 2025
Automatically restore control-area balance and frequency through TEİAŞ AGC.
- Direction
- upward and downward
- Trigger / range
- TEİAŞ set-point signals, sent at four-second intervals under the cited regulation
- Eligibility
- certified AGC-capable ancillary-service units
- Typical procurement
- Dynamic or not publicly stated
- Pricing
- capacity merit order under the regulation
Four seconds is the command interval, not full activation time.
Reactive power & voltage
-
Reactive Power Support
operational product category
Support transmission voltage through reactive injection or absorption.
- Direction
- reactive injection and absorption
- Trigger / range
- TEİAŞ voltage-control requirements and instructions
- Eligibility
- certified units capable of reactive support
- Typical procurement
- Dynamic or not publicly stated
- Pricing
- regulatory/contract terms
MW procurement is not the appropriate unit for reactive-power capability.
Black start & restoration
-
Black Start and System Restoration
operational product category
Re-energize the grid and restore load after a blackout without external supply.
- Direction
- system restoration
- Trigger / range
- TEİAŞ restoration plan/instruction
- Eligibility
- certified generating units meeting start and energization tests
- Typical procurement
- Dynamic or not publicly stated
- Pricing
- contract/regulation terms
Restoration obligations are site- and plan-specific.
Other services
-
Demand-Side Participation Service
regulatory product defined in the 29 December 2025 amendment; no 2025 awarded-volume result located
Provide dispatchable demand reduction through aggregators during critical periods.
- Direction
- upward system response through load reduction
- Sustain
- 1 h to 6 h
- Trigger / range
- critical day declared D-1; activation instruction no later than two hours before delivery under the amended regulation
- Eligibility
- licensed aggregators/eligible demand portfolios under the regulation
- Typical procurement
- Dynamic or not publicly stated
- Pricing
- pay-as-bid capacity in TL/MW and marginal activation in TL/MWh
Regulatory availability does not prove that a completed competitive procurement occurred in 2025.
-
Instantaneous Demand Control
operational product category
Automatically disconnect contracted demand during severe under-frequency events.
- Direction
- upward system response through load reduction
- Trigger / range
- contracted under-frequency relay threshold
- Eligibility
- eligible consumers/aggregations with certified relay and telemetry
- Typical procurement
- Dynamic or not publicly stated
- Pricing
- contract/regulation terms
No numeric threshold or response time is published because it can be contract-specific.
-
Regional Capacity Leasing
regulatory service category
Secure dispatchable capacity in a constrained region for local system security.
- Direction
- typically upward/local adequacy support
- Trigger / range
- regional security need and TEİAŞ instruction
- Eligibility
- eligible resources in the specified electrical region
- Typical procurement
- Dynamic or not publicly stated
- Pricing
- tender/contract terms
This is an ancillary/local-security procurement and is not Türkiye's separate administrative Capacity Mechanism.