REDS: REpository of Distribution Systems
The power systems community is lacking a common suite of realistic testcases for power distribution systems research. Many published papers are still reporting results for very small testcases (such as the 30-bus or 33-bus radial systems).

This is a joint effort of Rajesh Kavasseri and Cristinel Ababei whose goal is to collect and maintain such a repository of testcases, which shall be publically available for comparing and reporting research results on problems such as power flow solution, network reconfiguration, capacitor placement, load balancing, contingency analysis, etc.

If you have a testcase that you want to be included in this repository please send it to us. The bigger the testcase the better.

1. Radial Distribution Systems
This is the list of currently available radial distribution systems. All testscases are converted to a new simple-to-parse format described in the readme file included in the archive. Download the archive containing all of them here.

 Testcase Number of Buses / Feeders / Tie swicthes
 Source
 Comments
1
 bus_13_3
 13/3/3
 S. Civanlar, J.J. Grainger, H. Yin, S.S.H. Lee, Distribution feeder reconfiguration for loss reduction, IEEE Transactions on Power Delivery, Vol. 3, No. 3, pp. 1217-1223, July 1988. This testcase is known as the "Civanlar's system"
2
 bus_29_1
 29/1/1
 U. Eminoglu, M.H. Hocaoglu, A new power flow method for radial distribution systems including voltage dependent load models, Electric Power Systems Research, Vol. 76, No. 1-3, pp. 106-114, Sep. 2005.
 This testcase is known as the "IEEE 30 bus system"
3
 bus_32_1
 32/1/5
 M.E. Baran, F.F. Wu, Network reconfiguration in distribution systems for loss reductionand load balancing, IEEE Transactions on Power Delivery, Vol. 4, No. 2, pp. 1401-140, Apr. 1989.
 This testcase is known as the "Baran's system"
4
 bus_83_11
 83/11/13
 C.-T. Su, C.-F. Chang, J.-P. Chiou, Distribution network reconfiguration for loss reduction by ant colony search algorithm, Electric Power Systems Research, Vol. 75, No. 23, pp. 190-199, Aug. 2005.
5
 bus_135_8
 135/8/21
 M.A.N. Guimaraes, C.A. Castro, Reconfiguration of Distribution Dystems for Loss Reduction Using Tabu Search, 15th Power System Computation Conference - PSCC, Vol. 1, pp.1-6, Aug. 2005.
 Modified to 8 feeders by removal of the super-feeder
6
 bus_201_3
 201/3/15
 M.A.N. Guimaraes, C.A. Castro, Reconfiguration of Distribution Dystems for Loss Reduction Using Tabu Search, 15th Power System Computation Conference - PSCC, Vol. 1, pp.1-6, Aug. 2005. Modified to 3 feeders by removal of the super-feeder
7
 bus_873_7
 873/7/27
 NDSU Power Group
 Hypothetical testcase created using data from testcases 5 and 6
8
 bus_10476_84
 10476/84/260
 NDSU Power Group Hypothetical testcase created using data from testcases 5 and 6

2. Meshed Distribution Systems

3. Related Links
IEEE Radial Test Feeders
UW Power System Test Case Archive
United Kingdom Generic Distribution System (UKGDS) - requires registration to access