#acer

EU congestion costs hit €5.4bn as the 70% cross-border rule lags

ACER's 2026 market integration report, published November 4, 2026, finds most EU transmission operators could not consistently uphold the 70% minimum for cross-border capacity in 2025, while costly remedial actions against grid congestion reached 70 TWh and €5.4 billion, up from €4.3 billion in 2024.