Commitments And Contingencies (Tables)

9 Months Ended

Sep. 30, 2014

Commitments and Contingencies Disclosure [Abstract]

Schedule of Insurance Coverage at Callaway Energy Center

The following table presents insurance coverage at Ameren Missouri’s Callaway energy center at September 30, 2014. The property coverage and the nuclear liability coverage must be renewed on April 1 and January 1, respectively, of each year. Both coverages were renewed in 2014.



Type and Source of Coverage	Maximum Coverages			Maximum Assessments for Single Incidents
Public liability and nuclear worker liability:
American Nuclear Insurers	$	375		$	—
Pool participation	13,241		^(a)	128		^(b)
	$	13,616	^(c)	$	128
Property damage:
NEIL	$	2,250	^(d)	$	23	^(e)
European Mutual Association for Nuclear Insurance	500		^(f)	—
	$	2,750		$	23
Replacement power:
NEIL	$	490	^(g)	$	9	^(e)
Missouri Energy Risk Assurance Company LLC	64		^(h)	—


(a)	Provided through mandatory participation in an industrywide retrospective premium assessment program.


(b)	Retrospective premium under the Price-Anderson Act. This is subject to retrospective assessment with respect to a covered loss in excess of $375 million in the event of an incident at any licensed United States commercial reactor, payable at $19 million per year.

(c)

Limit of liability for each incident under the Price-Anderson liability provisions of the Atomic Energy Act of 1954, as amended. A company could be assessed up to $128 million per incident for each licensed reactor it operates with a maximum of $19 million per incident to be paid in a calendar year for each reactor. This limit is subject to change to account for the effects of inflation and changes in the number of licensed reactors.


(d)	NEIL provides $2.25 billion in property damage, decontamination, and premature decommissioning insurance.


(e)	All NEIL insured plants could be subject to assessments should losses exceed the accumulated funds from NEIL.


(f)	European Mutual Association for Nuclear Insurance provides $500 million in excess of the $2.25 billion property coverage provided by NEIL.


(g)	Provides replacement power cost insurance in the event of a prolonged accidental outage. Weekly indemnity up to $4.5 million for 52 weeks, which commences after the first eight weeks of an outage, plus up to $3.6 million per week for a minimum of 71 weeks thereafter for a total not exceeding the policy limit of $490 million. Nonradiation events are sub-limited to $327.6 million.

(h)

Provides replacement power cost insurance in the event of a prolonged accidental outage. The coverage commences after the first 52 weeks of insurance coverage from NEIL concludes and is a weekly indemnity of up to $0.9 million for 71 weeks in excess of the $3.6 million per week set forth above. Missouri Energy Risk Assurance Company LLC is an affiliate and has reinsured this coverage with third-party insurance companies. See Note 8 - Related Party Transactions for more information on this affiliate transaction.

Long-term Purchase Commitment [Table Text Block]

To supply a portion of the fuel requirements of our energy centers, we have entered into various long-term commitments for the procurement of coal, natural gas, nuclear fuel, and methane gas. We also have entered into various long-term commitments for purchased power and natural gas for distribution. The table below presents our estimated fuel, purchased power, and other commitments at September 30, 2014. Ameren’s and Ameren Missouri’s purchased power commitments include a 102-megawatt power purchase agreement with a wind farm operator, which expires in 2024. Ameren’s and Ameren Illinois’ purchased power commitments include the Ameren Illinois power purchase agreements entered into as part of the IPA-administered power procurement process. Included in the Other column are minimum purchase commitments under contracts for equipment, design and construction, and meter reading services at September 30, 2014. In addition, the Other column includes Ameren's and Ameren Missouri's obligations related to customer energy efficiency programs under the MEEIA as approved by the MoPSC's December 2012 electric rate order. Ameren Missouri expects to incur costs of $17 million during the remainder of 2014 and $64 million in 2015 for these customer energy efficiency programs.



	Coal		Natural Gas^(a)		Nuclear Fuel		Purchased Power^(b)		Methane Gas		Other		Total
Ameren:^(c)
2014	$	151	$	93	$	62	$	62	$	1	$	88	$	457
2015	635		225		56		190		3		156		1,265
2016	659		127		69		105		4		76		1,040
2017	682		80		59		66		4		50		941
2018	111		41		61		55		5		51		324
Thereafter	114		101		179		645		91		350		1,480
Total	$	2,352	$	667	$	486	$	1,123	$	108	$	771	$	5,507
Ameren Missouri:
2014	$	151	$	16	$	62	$	4	$	1	$	60	$	294
2015	635		39		56		21		3		110		864
2016	659		21		69		21		4		39		813
2017	682		13		59		21		4		26		805
2018	111		8		61		21		5		27		233
Thereafter	114		29		179		120		91		183		716
Total	$	2,352	$	126	$	486	$	208	$	108	$	445	$	3,725
Ameren Illinois:
2014	$	—	$	77	$	—	$	58	$	—	$	9	$	144
2015	—		186		—		169		—		28		383
2016	—		106		—		84		—		24		214
2017	—		67		—		45		—		24		136
2018	—		33		—		34		—		24		91
Thereafter	—		72		—		525		—		167		764
Total	$	—	$	541	$	—	$	915	$	—	$	276	$	1,732


(a)	Includes amounts for generation and for distribution.

(b)

The purchased power amounts for Ameren and Ameren Illinois include twenty-year agreements for renewable energy credits that were entered into in December 2010 with various renewable energy suppliers. The agreements contain a provision that allows Ameren Illinois to reduce the quantity purchased in the event that Ameren Illinois would not be able to recover the costs associated with the renewable energy credits.


(c)	Includes amounts for Ameren registrant and nonregistrant subsidiaries.

Schedule of Asbestors-Related Litigation Pending Lawsuits

The following table presents the pending asbestos-related lawsuits filed against the Ameren Companies as of September 30, 2014:


(a)	Total does not equal the sum of the subsidiary unit lawsuits because some of the lawsuits name multiple Ameren entities as defendants.

Ameren
Missouri

Ameren
Illinois