ABSTRACT
The objective of an ANM scheme consists in connecting to the existing network infrastructure more DG units than what would be feasible based on their installed power and the strict application of the N-1 criterion. This allows also accepting to connect these DG units before envisioning any grid reinforcement, which is a costly process that spreads over several years. In this way, more energy is likely to be exported from these DG units to the transmission grid. However, the impact of ANM must be assessed before any possible new connection to the grid is allowed. Indeed, a possible investor in a new generation facility requests to obtain guarantees on the possible curtailment his/her unit could undergo. And the performance of the ANM scheme could determine contractual features with the system operator. Moreover, installing a new DG unit can affect the energy curtailment of the already connected DG units. In addition to this, the risk of congestion on the elements of the grid should also be analyzed.
