The power system test cases on this page are do not contain Critical Energy Infrastructure Information (CEII) and are provided in a variety of different formats, including PowerWorld Simulator and PowerWorld DS (*.pwb, *.pwd, *.tsb, *.aux), Matpower (*.m), PSSE (*.raw, *.dyr), and PSLF (*.epc, *.dyd).
Latest Synthetic Electric Grid Cases — 2024-2025
Texas2k Series25 Cases with 2025 level wind, solar, and batteries
This dataset download includes Series25 power flow and dynamics cases for the Texas2k system, a synthetic Texas case with 2025 level wind, solar, and batteries along with additional transmission and improved dynamics modeling.
Hawaii Synthetic Grid — 37 Buses
This is a smaller, geographically-embedded, self-contained island test case, which contains a synthetic 138/69 kV transmission network on the geographic footprint of the Hawaiian island of Oahu.
Texas Synthetic Grid — 6717 Buses
This test case covers the geographic footprint of the ERCOT portion of the US state of Texas with a 6717-bus transmission network at the 345/138/69 kV levels. (Also available with distribution and with natural gas pipelines.)
Combined East-West US Grid – 80,000 Buses
This very large synthetic case models the footprints of the US portion of the eastern and western interconnects, as if they were synchronously inter-tied to form one combined grid.
Datasets for ARPA-E PERFORM Program
ARPA-E’s Performance-based Energy Resource Feedback, Optimization, and Risk Management (PERFORM) program seeks to develop new grid management systems that represent the relative delivery risk of individual electricity generation resources and balance the collective risk of all assets across the grid. The program has funded twelve project teams across the country to build software platforms that optimize grid management as the penetration of variable renewable resources continues to increase.
6717-bus Texas Case and 24,000-bus Midwest Case Created for the ARPA-E PERFORM Program
All Cases from the ARPA-E PERFORM Program
Synthetic Cases in 2021-2024
Texas2k Series24 Cases with Improved Dynamics
This dataset download includes six Series24 dynamics cases for the Texas2k system, a synthetic Texas case with scenarios varying in loading levels, renewable penetration, inertia, and inverter controls.
EIA-860 Generator Data Cases
This test case models the power flow of US Energy Information Administration (EIA) Generators
Full Texas Synthetic Gas-Electric Test Case (6717 electric buses, 2459 gas nodes)
This large, synthetic case models the electric transmission lines and natural gas pipeline network in Texas.
Full Texas Synthetic Transmission and Distribution Test Case
This very large, synthetic transmission & distribution test case covers the ERCOT portion of the U.S. state of Texas.
150-bus Synthetic Transmission and Distribution Test Case
This Travis County, Texas synthetic case (Austin, TX area) also contains associated distribution data in OpenDSS format, for over 200,000 total circuit nodes.
Restoration Data and Scenarios for ACTIVSg200
Synthetic Gas-Electric Test case for the Travis 150 System
This Travis County, Texas synthetic case (Austin, TX area) also contains an associated natural gas pipeline network.
Synthetic Cases from ARPA-E GridData Program
Synthetic electric grid models are fictitious representations that are designed to be statistically and functionally similar to actual electric grids while containing no confidential critical energy infrastructure information (CEII). Some of these cases were developed with the support of the U.S. DOE ARPA-E Grid Data program; their support is gratefully acknowledged. Specific references for the creation and validation of these cases here.
ACTIVSg200: 200 bus synthetic grid on footprint of Central Illinois – TS GMD OPF
ACTIVSg500: 500 bus synthetic grid on footprint of South Carolina – TS GMD OPF
ACTIVSg2000: 2000 bus synthetic grid on footprint of Texas – TS GMD OPF MOV PMU
ACTIVSg10k: 10,000 bus synthetic grid on footprint of western United States – TS GMD OPF MOV
ACTIVSg25k: 25,000 bus synthetic grid on footprint of northeastern United States – TS GMD OPF
ACTIVSg70k: 70,000 bus synthetic grid on footprint of eastern United States – GMD OPF
Synthetic PMU Data for the 2000-bus case
EPIGRIDS (Electric Power Infrastructure and Grid Representations in Interoperable Data Sets)
Eastern Network: 78,484 bus synthetic grid
Florida: 5,658 bus synthetic grid
Midwest: 10,192 bus synthetic grid
New England: 250 bus synthetic grid
Synthetic USA: 82,000 bus synthetic grid
Texas: 7,336 bus synthetic grid
Western Network: 20,758 bus synthetic grid
Wisconsin: 1,664 bus synthetic grid
Other Synthetic/Fictitious Cases and Data
UIUC150: 150-bus synthetic grid on footprint of Tennessee – GMD
Illini 42 Tornado – TS GMD PWDS MOV
IlliniGMD 42 HEMP – TS GMD PWDS MOV
Computer Assignments for an Undergraduate Class Using the Synthetic Grids
Datasets from the GO Competition Challenge 1
Tgo500: 500 bus synthetic test case for GO competition Challenge 1 – TS OPF
Tgo2000: 2000 bus synthetic test case for GO competition Challenge 1 – TS OPF
Tgo10K: 10,000 bus synthetic test case for GO competition Challenge 1 – TS OPF
Tgo30K: 30,000 bus synthetic test case for GO competition Challenge 1 – TS OPF
Literature-Based Power Flow Test Cases
Cases are provided by University of Illinois at Urbana-Champaign Information Trust Institute.
Kundur Two-Area System
WSCC 9-Bus System
IEEE 14-Bus System
IEEE 24-Bus System
IEEE 30-Bus System
IEEE 39-Bus System
IEEE 57-Bus System
IEEE 118-Bus System
IEEE 300-Bus System
IEEE 96-RTS Test System
Polish Grid with Texas A&M Enhancements OPF TS
Small Signal Stability Test Cases
This report – Benchmark Systems for Small-Signal Stability Analysis and Control – documents a set of benchmark models that could be used on small signal stability analysis and evaluation of power system stabilizer (PSS) tuning algorithms.
Three Machines Infinite Bus Benchmark System – TS
Brazilian Seven Bus System – TS
Two-Area (Four-Generator) System – TS
New England IEEE 39-Bus System – TS
Simplified 14-Generator Australian Power System – TS
New England 68-Bus Test System – TS
About
All cases displayed above include a feasible AC power flow solution. Icons next to each case indicate whether additional parameters/models are included: TS for transient stability, GMD for geomagnetic disturbance analysis, OPF for energy economic study, PWDS for PowerWorld Dynamic Studio scenarios, MOV if case movies are available and PMU if synthetic PMU data is available.
Here are some introductory videos showing how these interactive power system simulation cases improve the situational awareness of current system operating conditions.
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