Jointly Owned Utility Plant Proportionate Ownership Share, Other Entities

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- Definition

Jointly owned utility plant, Future proportionate ownership share

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- Definition

Net book value

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- Definition

Number of operating units

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- Definition

Operating Lease, Extended Term

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- Definition

Operating Lease, Original Term

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- Definition

Regulatory Disallowance

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- Definition

The proportionate share of interest (percent) in a jointly owned utility plant.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 10.C)
-URI http://asc.fasb.org/extlink&oid=6500719&loc=d3e659983-123033

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 10
-Section C

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- Definition

The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

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- Definition

Period end book value of accumulated depreciation on property, plant and equipment (PPE) that is owned by the regulated operations of the public utility.

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No definition available.

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- Definition

Period end amount of construction work in progress in public utility.

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- Definition

Period end amount of total gross PPE.

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Construction Program and Jointly-Owned Electric Generating Plants Construction Program and Jointly-Owned Electric Generating Plants (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) operating_unit	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Construction expenditures	$ 558,589	$ 460,658	$ 348,039
Plant in Service	6,307,261	5,941,581
Accumulated Depreciation	(2,058,772)	(1,939,760)
Regulatory Disallowance	$ 167,471	1,062	12,235
Operating lease, option term extensions	2 years
Public Service Company of New Mexico [Member]
Construction expenditures	$ 404,840	316,800	239,906
Plant in Service	4,833,303	4,581,066
Accumulated Depreciation	(1,569,549)	(1,486,406)
Regulatory Disallowance	167,471	1,062	12,235
Texas-New Mexico Power Company [Member]
Construction expenditures	124,584	127,191	$ 89,117
Plant in Service	1,285,727	1,182,112
Accumulated Depreciation	(406,516)	$ (375,407)
Joint Projects [Member] \| Public Service Company of New Mexico [Member]
Construction expenditures	404,800
Joint Projects [Member] \| Texas-New Mexico Power Company [Member]
Construction expenditures	124,600
Joint Projects [Member] \| PNMR [Member]
Construction expenditures	558,600
San Juan Generating Station Units 2 and 3 [Member] \| Public Service Company of New Mexico [Member]
Plant in Service	468,200
Accumulated Depreciation	(193,300)
Construction Work in Progress	2,200
Net book value	$ 277,100
SJGS (Coal) [Member] \| Unit 3 [Member] \| Other Unrelated Entities 1 [Member]
Jointly owned utility plant, ownership percentage	41.80%
SJGS (Coal) [Member] \| Unit 3 [Member] \| Other Unrelated Entities 2 [Member]
Composite Interest	8.20%
SJGS (Coal) [Member] \| Unit 4 [Member] \| Other Unrelated Entities 3 [Member]
Jointly owned utility plant, ownership percentage	28.80%
SJGS (Coal) [Member] \| Unit 4 [Member] \| Other Unrelated Entities 4 [Member]
Jointly owned utility plant, ownership percentage	10.04%
SJGS (Coal) [Member] \| Unit 4 [Member] \| Other Unrelated Entities 5 [Member]
Jointly owned utility plant, ownership percentage	8.475%
SJGS (Coal) [Member] \| Unit 4 [Member] \| Other Unrelated Entities 6 [Member]
Jointly owned utility plant, ownership percentage	7.20%
SJGS (Coal) [Member] \| Unit 4 [Member] \| Other Unrelated Entities 7 [Member]
Jointly owned utility plant, ownership percentage	7.028%
SJGS (Coal) [Member] \| Public Service Company of New Mexico [Member]
Plant in Service	$ 1,083,331
Accumulated Depreciation	(428,684)
Construction Work in Progress	$ 20,117
Composite Interest	46.30%
SJGS (Coal) [Member] \| Public Service Company of New Mexico [Member] \| Unit 3 [Member]
Composite Interest	50.00%
SJGS (Coal) [Member] \| Public Service Company of New Mexico [Member] \| Unit 4 [Member]
Composite Interest	38.457%
Jointly owned utility plant, future proportionate ownership share	64.50%
SJGS (Coal) [Member] \| PNMR Development [Member] \| Unit 4 [Member]
Jointly owned utility plant, future proportionate ownership share	12.80%
Palo Verde Nuclear Generating Station [Member] \| Public Service Company of New Mexico [Member]
Plant in Service	$ 562,412
Accumulated Depreciation	(164,549)
Construction Work in Progress	$ 38,966
Composite Interest	10.20%
Period of time for the original full power operating licenses	40 years
Number of operating units \| operating_unit	3
Operating lease, option term extensions	20 years
Four Corners Units 4 and 5 (Coal) [Member] \| Public Service Company of New Mexico [Member]
Plant in Service	$ 167,874
Accumulated Depreciation	(102,559)
Construction Work in Progress	$ 19,390
Composite Interest	13.00%
Luna (Gas) [Member] \| Public Service Company of New Mexico [Member]
Plant in Service	$ 69,259
Accumulated Depreciation	(23,048)
Construction Work in Progress	$ 33
Composite Interest	33.33%
SJGS Units 1 and 2 [Member] \| Public Service Company of New Mexico [Member]
Composite Interest	50.00%
Clean Air Act, SNCR [Member] \| Public Service Company of New Mexico [Member]
Regulatory Disallowance	$ 21,600
Clean Air Act, SNCR [Member] \| San Juan Generating Station Units 2 and 3 [Member] \| Public Service Company of New Mexico [Member]
Regulatory Disallowance	$ 127,600