TRANSMISSION ANALYSIS

EnCompass is able to perform simulations using either a simplified zonal transmission model or a detailed DC powerflow, including contingency constraints. As part of a nodal simulation, EnCompass will calculate the locational marginal price (LMP) for each node in the network, along with the congestion and loss component. LMP reports show the statistics for average, on-peak, off-peak, minimum, and maximum LMP, as well as the congestion components from each binding transmission constraint.

EnCompass includes all of the necessary transmission detail to effectively combine generation and transmission planning and evaluation of portfolios in nodal markets. Analysts can model transmission lines with planned outages and unplanned forced outages. They can also use Powerflow control devices such as phase-shifting transformers and DC ties to manage congestion.

Summary reports display the total congestion value of binding constraints to help identify transmission projects with economic value. With this nodal capability, EnCompass can include a security-constrained unit commitment (SCUC) and economic dispatch (SCED) into both detailed simulations and longer-term simulations that can include Monte Carlo risk analysis and capacity expansion with environmental compliance. A complete nodal dataset is available for ERCOT, WECC, the Eastern Interconnect, and a combined model of ERCOT and the Eastern Interconnect.