FAIR VALUE OF FINANCIAL INSTRUMENTS

12 Months Ended

Dec. 31, 2012

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

NOTE 7.HYPERLINK \l "Fairvalue"FAIR VALUE OF FINANCIAL INSTRUMENTS

The carrying amount of cash and cash equivalents, current assets, accounts receivable, accounts payable and current liabilities approximate fair value due to the short-term nature of these instruments. As reported in Note 4, Investments in Subsidiaries & Other Property, investments held in Rabbi Trust and cash surrender value of life insurance policies continue to be considered Level 1 and Level 2, respectively, in the fair value hierarchy.

The total fair value of NVE's consolidated long-term debt at December 31, 2012, is estimated to be $5.9 billion based on quoted market prices for the same or similar issues or on the current rates offered to NVE for debt of the same remaining maturities. The total fair value was estimated to be $6.0 billion as of December 31, 2011.

The total fair value of NPC's consolidated long-term debt at December 31, 2012, is estimated to be $4.1 billion based on quoted market prices for the same or similar issues or on the current rates offered to NPC for debt of the same remaining maturities. The total fair value was estimated to be $4.1 billion at December 31, 2011.

The total fair value of SPPC's consolidated long-term debt at December 31, 2012, is estimated to be $1.3 billion based on quoted market prices for the same or similar issues or on the current rates offered to SPPC for debt of the same remaining maturities. The total fair value was estimated to be $1.3 billion as of December 31, 2011.