Transmission Services
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Impact Studies
The Transmission Services department evaluates long-term requests for Network Integration and Point-To-Point transmission service through various processes, including the Aggregate Transmission Service Study (ATSS) process under Attachment Z1 of the SPP Open-Access Transmission Tariff (OATT), and performs screening studies through the Delivery Point Transfer (DPT) and Long-Term Service Request (LTSR) processes under Attachment AR of the SPP OATT.
To receive email updates from Transmission Services, sign up for the SPP Aggregate Studies Exploder.
For questions or study requests, please contact ATSS@spp.org.