As the RES penetration increases, some unexpected effects come to light, such as loop flows or local congestion of transmission and distribution lines. Power Flow Control (PFC) technologies can redirect power flow from one line to another underutilized line. The logic is similar to a phase shifting transformer, yet power flow control systems are smaller in size, they have shorter installation times and they can be embedded directly on the line.

Scalable PFC technologies enable each power line to dynamically control and transfer more or less power based on the real-time needs of the grid. Consequently, power lines can be perceived as dispatchable assets and grid operators can transfer much more power using the existing infrastructure and also trade more power with their neighbors. Finally, by adding distributed PFC strategically to their grids, grid operators can dramatically lower the investment required to accommodate much higher penetration of renewable energy and shorten the time it takes to bring a renewable project online.

In FLEXITRANSTORE an advanced technology of Smart Wires Ireland is integrated on power lines, demonstrating how PFC is used to steer power flow, which results in relieving local congestion with RES, in preventing loop flows and in increasing network transfer capacity.

The pilots will run in two demonstration sites, one in Southern Bulgaria and the second in the Peloponnese region in Greece.

Objectives - Ambition

  • To increase network transfer capacity and to reduce RES curtailment.
  • To test the ability of PFC technologies to direct power flow on transmission and distribution lines.