Image: CRE

On October 9, France’s Energy Regulatory Commission (CRE) released a list of grid areas eligible for the new injection-withdrawal tariff component under the TURPE 7 framework. The new pricing system, which applies to users of both high-voltage (HTB) and medium-to-low-voltage (HTA-BT) public electricity networks, will take effect on August 1, 2026.

The measure introduces a dynamic tariff designed to promote more efficient grid use during periods of high consumption or production. By encouraging local load balancing, it aims to reduce pressure on the electricity network and support renewable energy integration.

Under the framework, CRE distinguishes between two types of grid zones:

· Withdrawal zones, where networks are mainly dimensioned for consumption;

· Injection zones, where the grid must handle significant electricity input, such as from solar or wind generation.

The mechanism is intended to incentivize battery storage systems and other flexible assets to adapt their operations — avoiding charging or discharging during times when the network is under strain.

According to CRE, approximately 13% of network areas are constrained by “photovoltaic injection,” where the grid is saturated by solar output during midday hours (typically 12:00–16:00) for around 125 days each summer. In these areas, the tariff encourages storage operators to charge during solar peaks to absorb excess generation.

Conversely, around 50% of network zones face constraints on the withdrawal side, particularly during winter peak demand periods. In these cases, storage systems will be rewarded for injecting electricity back into the grid when demand is highest.

By defining these eligible zones, the new tariff structure aims to enhance grid flexibility, reduce congestion, and accelerate the integration of renewable energy sources — particularly when paired with energy storage.