Released on 8/8/2025
(SPP_MISO_Transmission_Database_2025_26.zip)
New NEW SPP_MISO model packags based on updated underlying 2025_26 market models. See Readme for details and also please download updated underlying model packages. Please make sure to replace both default.dzr and default.pfd before running.

Released on 8/8/2025
(ERCOT Transmission Database JUN 2025 CRR AUCTION_Updated.zip)
New ERCOT Transmission Database JUN 2025 CRR AUCTION_Updated.mdb released with new constraints updated through 8-5-2025, new & refactored INDLs, updated line and constraint ratings, new static & dynamic ratings, and a BETA release package for the SEPT 2025 CRR AUCTION topology. See Readme file for additional details. Please make sure to replace both default.dzr and default.pfd before running.

Released on 6/6/2025
(ONTARIO_Transmission_Database_2025_SUM.zip)
New New Release of Ontario DAYZER model release corresponding with Market Renewal Nodal DA market started in May 2025. Please see Readme for Details or Contact CES to express interest. Please make sure to replace both default.dzr and default.pfd before running.

Released on 5/28/2025
(PJM_MISO_Transmission_Database_2025_2026.zip)
New New PJM_MISO model based on 2025_26 FTR models. See ReadMe for full details. Please make sure to replace both default.dzr and default.pfd before running.

Released on 5/21/2025
(PJM_NYPP Transmission Database 2025-2026.zip)
New NEW PJM_NYPP database based on 2025-26 PJMRTO annual network model and NYPP Summer 2024-26 planning model. PJM_NYPP constraints and other modeling elements are equally updated and complete as in underlying models. Please make sure to replace both default .dzr and default .pfd before running. See detail in included readme files.

Released on 5/22/2025
(NEPOOL_Transmission_Database_2024-25.zip)
New New load flow model based on NEPOOL 3.2.12 Load flow version with updated unit locations, Pnode Mappings. See detail in included readme files.

Released on 5/5/2025
(SPP_Transmission_Database_2024_2026_Updated.zip)
New Updated SPP model with additional future units, AECI modeling files, DDR pricing nodes. See ReadMe for full details.

Released on 4/24/2025
(SPP_Transmission_Database_2024-2026.zip)
New New SPP Model based on 2025_2026 Annual Auction files. See readme for full detail.

Released on 4/24/2025
(MISO_Transmission_Database_2025-26_Allocation_Updated.zip)
New New MISO Model based on 2025_2026 Annual Auction files. See readme for full detail.

Released on 3/14/2025
(PJMRTO_Transmission_Database_2025-26.zip)
New PJM model updated based on 2025_2026 auction files. See readme for full details.

Released on 2/14/2025
(NYPP_Transmission_Database_Summer_2024-26_Planning.zip)
Updated NYPP model with updated constraints, units, INDL loads, pnodes,candidate contingencies, and new Astoria-Rainey 345kv line. See readme for full detail. Please make sure to replace both default.dzr and default.pfd before running.

(posted on www.CES-US.com portal)