The Nordic-Baltic Hydrogen Corridor (NBHC), a major European infrastructure project developed jointly by six transmission system operators: Gasgrid (Finland), Elering (Estonia), Conexus Baltic Grid (Latvia), Amber Grid (Lithuania), GAZ-SYSTEM (Poland), and ONTRAS (Germany), has launched a Call for Interest survey. The initiative seeks early, non‑binding market input to support ongoing feasibility work and help shape the…