Section 15(2) in The Orissa Grid Code (OGC) Regulations, 2006
(2)The system of the State shall be treated and operated as a notional control area. The algebraic summation of scheduled drawal from ISGS/ SGS/CGP and any bilateral interchange shall provide the Drawal Schedule of the State, and this shall be determined in advance on daily basis. While the State would generally be expected to regulate its generation and/or consumers' load so as to maintain its actual drawal from the regional grid close to the above schedule, a tight control is not mandated. The States may, at its discretion, deviate from the Drawal Schedule, as long as such deviations do not cause system parameters to deteriorate beyond permissible limits and/or do not lead to unacceptable line loading.
