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ERCOT SPWG ASPEN License Proposal

ERCOT SPWG ASPEN License Proposal. Current Status A majority of ERCOT SPWG members use ASPEN Current case update process requires most members to convert files from ASPEN to PSS/E format, then submit to ERCOT Problem

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ERCOT SPWG ASPEN License Proposal

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  1. ERCOT SPWG ASPEN License Proposal • Current Status • A majority of ERCOT SPWG members use ASPEN • Current case update process requires most members to convert files from ASPEN to PSS/E format, then submit to ERCOT • Problem • Once the case is compiled most members then have to convert from PSS/E format back to ASPEN • Information is sometimes lost in the conversion • Aspen and PSSE are competitors, so conversion utilities are not updated at same time as software updates. • Benefits • ERCOT’s purchase of ASPEN will eliminate this conversion process for most members • Future ASPEN updates may include the use of graphics for short circuit models; currently graphics are added back after file conversion • Testing • SPWG completed a successful trial earlier this year in updating both the current and future year cases using a temporary license of ASPEN • Conversion to PSS/E format for members that do not have ASPEN will be maintained • Recommendation • The SPWG recommendation is to purchase ASPEN for ERCOT’s use in updating ERCOT short circuit cases.

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