Voltage and reactive-power support from distributed generation
Türkiye’s distribution network has undergone significant structural and operational changes over the past decade. The widespread deployment of distributed energy resources (DERs) has transformed the distribution system from a traditionally passive structure into a dynamic that requires enhanced visibility, controllability, and coordination.
As the share of DERs expands, voltage stability, reactive power management, power quality, and operational flexibility have become critical components of day-to-day grid operations. Inverter-based resources offer important capabilities in these areas; however, unlocking their full potential requires establishing unified control and communication frameworks and aligning operational processes with modern grid-support capabilities.
Why Voltage and reactive-power support matter for renewable energy integration
The widespread deployment of DERs turns distribution networks from “passive” systems into dynamic ones, where maintaining voltages within limits becomes a day-to-day operational constraint—not just a planning issue. This presents the following changes to grid operators:
More renewables make voltage harder to keep within limits (bidirectional flows + variable output turn distribution grids “dynamic”).
Reactive power is the quickest, most effective lever for voltage control at the distribution level.
Inverter-based distributed generation can provide that support locally and can mitigate both under/overvoltage, but the impact is location-dependent.
It only works at scale with coordination and rules (telemetry/control readiness + aligned between transmission, distribution and distributed generators obligations).
Developing a framework for voltage control and reactive power provision
The MENALINKS programme aims to support Türkiye’s transition towards an advanced distribution network by developing a comprehensive methodological and institutional framework for evaluating, classifying, and integrating distributed generation units capable of providing voltage and reactive power support. MENALINKS’ support combines technical analysis, regulatory assessment, international benchmarking, and implementation planning to establish an end-to-end framework aligned with Türkiye’s digitalization and grid modernization agenda. MENALINKS activities include:
Screen and classify DERs (technical capability + controllability) and select a representative for further analysis/pilots.
Assess regulatory and tariff compatibility for Volt–VAR operation and identify needed updates.
Quantify system-level benefits and costs (e.g., voltage performance, losses, investment deferral) via cost-benefit analysis] .
Define the implementation package: technical specs, verification guidelines, service modality, and a phased rollout roadmap (informed by international benchmarking).
