Widely used as examples of networks rather than grid problems.

Not suitable for variable-band algorithms.

Matrices in this set:

• BCSPWR01 (pattern symmetric indefinite, 39 by 39, 85 entries), Standard IEEE test power system -- New England
• BCSPWR02 (pattern symmetric indefinite, 49 by 49, 108 entries), Small test power system -- WSCC
• BCSPWR03 (pattern symmetric indefinite, 118 by 118, 297 entries), IEEE standard 118 bus test case power network
• BCSPWR04 (pattern symmetric indefinite, 274 by 274, 943 entries), Equivalenced representation of US power network
• BCSPWR05 (pattern symmetric indefinite, 443 by 443, 1033 entries), Equivalenced representation of western US power network
• BCSPWR06 (pattern symmetric indefinite, 1454 by 1454, 3377 entries), Western US power network -- 1454 bus
• BCSPWR07 (pattern symmetric indefinite, 1612 by 1612, 3718 entries), Western US power network -- 1612 bus
• BCSPWR08 (pattern symmetric indefinite, 1624 by 1624, 3837 entries), Western US power network -- 1624 bus
• BCSPWR09 (pattern symmetric indefinite, 1723 by 1723, 4117 entries), Western US power network -- 1723 bus
• BCSPWR10 (pattern symmetric indefinite, 5300 by 5300, 13571 entries), Western US power network -- 5300 bus
  
  
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