Regulatory and Rate Matters - Battery Energy Storage System Certificate of Public Convenience and Necessity ("CCN") (Details) - Subsequent event - Public Service Company of New Mexico $ in Millions	May 03, 2023 USD ($) storageSystem MW
Public Utilities, General Disclosures [Line Items]
Number of battery storage systems \| storageSystem	2
Battery energy storage systems (in megawatts) \| MW	6
Battery energy storage system, costs \| $	$ 25.8

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