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Regulatory and Rate Matters - Formula Transmission Rate Case (Details) - Public Service Company of New Mexico $ in Millions | Mar. 20, 2015 USD ($) party
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Wholesale Electric Transmission Rate Case |
Public Utilities, General Disclosures [Line Items] |
Approved additional rate increase | $ | $ 1.3
Formula Transmission Rate Case |
Public Utilities, General Disclosures [Line Items] |
Number of additional parties entered into settlement agreement (in parties) | party | 5
Return on equity | 10.00%

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