Assessment of Transmission Congestion for Major Electricity Markets in the US

.-lbstract This paper details the estimated congestion rent collected by the Independent S}stem Operators (1S0) since their inception In different electrlclt} markets, The electricity markets analyzed are: New York Po\\er Pool. California Po\ver E\change. and Pennsylvania-Jersey-Ma~ land (PJM) potter pool. The paper describes the significant assumptions underl> ]ng [he calculations and attempts to delineate the Impllcat]ons of the assumptions. 1[ is observed that the congestion rent calculations are practically accurate for the c allt’ornla Power Exchange since most of the data pertaining to the inter-zonal transmlsston power flow and the ]oter-zonal prlcc differential is readtly available. On the contrary. the congestion rent estimation for the Ne\\ York 1S0 involves stgnlticant assumptions. f-Iowever. it can be shown that the results are reasonable’ accurate. The efforts for the similar calcula[lons for the congcst]on rent for PJM electricity power markets proved 10be futllt It \\ould not be unfairto comment [hot \vhen compared to its peer electricity markets. PJM were]! lacks transparent> in terms of dlsclosmg ]nformattoo pcr[a]nlng to the transtnlssion congestloo rent calculations.