Receivables

9 Months Ended

Sep. 30, 2012

Accounts, Notes, Loans and Financing Receivable [Line Items]

Receivables

RECEIVABLES

Sales of Accounts Receivable - IPL maintains a Receivables Purchase and Sale Agreement (Agreement) whereby it may sell its customer accounts receivables, unbilled revenues and certain other accounts receivables to a third-party financial institution through wholly-owned and consolidated special purpose entities. In March 2012, IPL extended through March 2014 the purchase commitment from the third-party financial institution to which it sells its receivables. In exchange for the receivables sold, IPL receives cash proceeds from the third-party financial institution (based on seasonal limits up to $180 million), and deferred proceeds recorded in “Accounts receivable” on Alliant Energy’s and IPL’s Condensed Consolidated Balance Sheets.

As of September 30, 2012 and December 31, 2011, IPL sold $210.9 million and $195.3 million aggregate amounts of receivables, respectively. IPL’s maximum and average outstanding cash proceeds, and costs incurred related to the sales of accounts receivable program for the three and nine months ended September 30 were as follows (in millions):

	Three Months		Nine Months
	2012	2011	2012	2011
Maximum outstanding aggregate cash proceeds (based on daily outstanding balances)	$150.0	$160.0	$160.0	$160.0
Average outstanding aggregate cash proceeds (based on daily outstanding balances)	95.0	125.4	124.2	114.0
Costs incurred	0.4	0.3	1.1	1.1

The attributes of IPL’s receivables sold under the Agreement were as follows (in millions):

	September 30, 2012	December 31, 2011
Customer accounts receivable	$137.9	$122.4
Unbilled utility revenues	64.7	65.4
Other receivables	8.3	7.5
Receivables sold	210.9	195.3
Less: cash proceeds (a)	55.0	140.0
Deferred proceeds	155.9	55.3
Less: allowance for doubtful accounts	2.0	1.6
Fair value of deferred proceeds	$153.9	$53.7
Outstanding receivables past due	$16.6	$15.9

(a) Changes in cash proceeds for the nine months ended September 30, 2012 are recorded in “Sales of accounts receivable” in operating activities in Alliant Energy’s and IPL’s Condensed Consolidated Statements of Cash Flows.

Additional attributes of IPL’s receivables sold under the Agreement for the three and nine months ended September 30 were as follows (in millions):

	Three Months		Nine Months
	2012	2011	2012	2011
Collections reinvested in receivables	$522.9	$482.3	$1,334.7	$1,367.8
Credit losses, net of recoveries	3.0	3.4	7.3	7.9

IPL [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

Receivables

RECEIVABLES

Sales of Accounts Receivable - IPL maintains a Receivables Purchase and Sale Agreement (Agreement) whereby it may sell its customer accounts receivables, unbilled revenues and certain other accounts receivables to a third-party financial institution through wholly-owned and consolidated special purpose entities. In March 2012, IPL extended through March 2014 the purchase commitment from the third-party financial institution to which it sells its receivables. In exchange for the receivables sold, IPL receives cash proceeds from the third-party financial institution (based on seasonal limits up to $180 million), and deferred proceeds recorded in “Accounts receivable” on Alliant Energy’s and IPL’s Condensed Consolidated Balance Sheets.

As of September 30, 2012 and December 31, 2011, IPL sold $210.9 million and $195.3 million aggregate amounts of receivables, respectively. IPL’s maximum and average outstanding cash proceeds, and costs incurred related to the sales of accounts receivable program for the three and nine months ended September 30 were as follows (in millions):

	Three Months		Nine Months
	2012	2011	2012	2011
Maximum outstanding aggregate cash proceeds (based on daily outstanding balances)	$150.0	$160.0	$160.0	$160.0
Average outstanding aggregate cash proceeds (based on daily outstanding balances)	95.0	125.4	124.2	114.0
Costs incurred	0.4	0.3	1.1	1.1

The attributes of IPL’s receivables sold under the Agreement were as follows (in millions):

	September 30, 2012	December 31, 2011
Customer accounts receivable	$137.9	$122.4
Unbilled utility revenues	64.7	65.4
Other receivables	8.3	7.5
Receivables sold	210.9	195.3
Less: cash proceeds (a)	55.0	140.0
Deferred proceeds	155.9	55.3
Less: allowance for doubtful accounts	2.0	1.6
Fair value of deferred proceeds	$153.9	$53.7
Outstanding receivables past due	$16.6	$15.9

(a) Changes in cash proceeds for the nine months ended September 30, 2012 are recorded in “Sales of accounts receivable” in operating activities in Alliant Energy’s and IPL’s Condensed Consolidated Statements of Cash Flows.

Additional attributes of IPL’s receivables sold under the Agreement for the three and nine months ended September 30 were as follows (in millions):

	Three Months		Nine Months
	2012	2011	2012	2011
Collections reinvested in receivables	$522.9	$482.3	$1,334.7	$1,367.8
Credit losses, net of recoveries	3.0	3.4	7.3	7.9