Receivables (Tables)

3 Months Ended

Mar. 31, 2013

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

Maximum And Average Outstanding Cash Proceeds

IPL’s maximum and average outstanding cash proceeds, and costs incurred related to the sales of accounts receivable program for the three months ended March 31 were as follows (in millions):

	2013	2012
Maximum outstanding aggregate cash proceeds (based on daily outstanding balances)	$170.0	$160.0
Average outstanding aggregate cash proceeds (based on daily outstanding balances)	139.2	143.0
Costs incurred	0.3	0.4

Receivables Sold Under The Agreement

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

	March 31, 2013	December 31, 2012
Customer accounts receivable	$155.9	$118.2
Unbilled utility revenues	68.1	77.4
Other receivables	0.1	2.8
Receivables sold	224.1	198.4
Less: cash proceeds (a)	100.0	130.0
Deferred proceeds	124.1	68.4
Less: allowance for doubtful accounts	2.0	1.6
Fair value of deferred proceeds	$122.1	$66.8
Outstanding receivables past due	$21.0	$16.1

(a) Changes in cash proceeds 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 Receivables Sold Under The Agreement

Additional attributes of IPL’s receivables sold under the Agreement for the three months ended March 31 were as follows (in millions):

	2013	2012
Collections reinvested in receivables	$491.3	$442.3
Credit losses, net of recoveries	1.9	2.1

IPL [Member]

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

Maximum And Average Outstanding Cash Proceeds

IPL’s maximum and average outstanding cash proceeds, and costs incurred related to the sales of accounts receivable program for the three months ended March 31 were as follows (in millions):

	2013	2012
Maximum outstanding aggregate cash proceeds (based on daily outstanding balances)	$170.0	$160.0
Average outstanding aggregate cash proceeds (based on daily outstanding balances)	139.2	143.0
Costs incurred	0.3	0.4

Receivables Sold Under The Agreement

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

	March 31, 2013	December 31, 2012
Customer accounts receivable	$155.9	$118.2
Unbilled utility revenues	68.1	77.4
Other receivables	0.1	2.8
Receivables sold	224.1	198.4
Less: cash proceeds (a)	100.0	130.0
Deferred proceeds	124.1	68.4
Less: allowance for doubtful accounts	2.0	1.6
Fair value of deferred proceeds	$122.1	$66.8
Outstanding receivables past due	$21.0	$16.1

(a) Changes in cash proceeds 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 Receivables Sold Under The Agreement

Additional attributes of IPL’s receivables sold under the Agreement for the three months ended March 31 were as follows (in millions):

	2013	2012
Collections reinvested in receivables	$491.3	$442.3
Credit losses, net of recoveries	1.9	2.1