KCC hears SPP 'We Expand' study plan to examine DC tie expansion between interconnections
Justin Grady told the commission SPP's new 'We Expand' study will evaluate enlarging DC tie capacity between the Eastern and Western interconnections (currently ~1,300 MW). The study will take about a year and underpin any cost-allocation recommendations for expanded interregional transfer capability.
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Justin Grady briefed commissioners on SPP's 'We Expand' study, which will evaluate whether it is economically and operationally justified to expand DC ties that link the Eastern and Western interconnections. Grady said the ties now permit about 1,300 MW of transfers and that SPP will take roughly a year to complete the study, with final results expected around late 2027 or early 2028.
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