Regulation· 9 min.
ADM Circular 9/D 2026: first instructions for the semiannual electricity declaration
ADM Circular 9/D of May 7, 2026 (prot. 263885) provides the first operational instructions for the semiannual AD-1 declaration: separate models for power plants and vendors on a single XML schema, test environment from June 1, monthly rounding, and the H1 window open until September 30, 2026.