(3) RECEIVABLES

(a) Sales of Accounts Receivable—Effective April 1, 2010, IPL entered into an amended and restated 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 2011, IPL extended through March 2012 the purchase commitment from the third-party financial institution to which it sells its receivables. In exchange for the receivables sold, IPL will receive from the third-party financial institution cash proceeds (based on seasonal limits up to $160 million), and deferred proceeds recorded in "Accounts receivable" on Alliant Energy's and IPL's Condensed Consolidated Balance Sheets.

As of Sep. 30, 2011 and Dec. 31, 2010, IPL sold $204.3 million and $219.6 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 Sep. 30 were as follows (in millions):


	Three Months				Nine Months
	2011		2010		2011		2010
Maximum outstanding aggregate cash proceeds (based on daily outstanding balances)	$	160.0	$	155.0	$	160.0	$	160.0
Average outstanding aggregate cash proceeds (based on daily outstanding balances)		125.4		89.3		114.0		76.0
Costs incurred		0.3		0.3		1.1		1.0

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


	Sep. 30, 2011		Dec. 31, 2010
Customer accounts receivable	$	139.8	$	133.0
Unbilled utility revenues		54.8		80.9
Other receivables		9.7		5.7

Receivables sold		204.3		219.6
Less: cash proceeds (a)		115.0		65.0

Deferred proceeds		89.3		154.6
Less: allowance for doubtful accounts		1.9		1.7

Fair value of deferred proceeds	$	87.4	$	152.9

Outstanding receivables past due	$	16.4	$	14.1

(a)	Changes in cash proceeds during the nine months ended Sep. 30, 2011 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 Sep. 30 were as follows (in millions):


	Three Months				Nine Months
	2011		2010		2011		2010
Collections reinvested in receivables	$	482.3	$	518.4	$	1,367.8	$	925.5
Credit losses, net of recoveries		3.4		3.1		7.9		4.9

(b) Customer Accounts Receivable— Alliant Energy's RMT business accounts for revenues under the percentage of completion method for the majority of its renewable energy projects and the related accounts receivable are recognized at original invoice amount. Revenues recognized but not yet invoiced are recorded as unbilled revenue. Due to the large project volume RMT has experienced in 2011, RMT's customer accounts receivable and unbilled revenues have significantly increased in 2011. As of Sep. 30, 2011 and Dec. 31, 2010, RMT's total customer accounts receivable and unbilled revenues were $107 million and $26 million, respectively, and were recorded in "Accounts receivable—customer" on Alliant Energy's Condensed Consolidated Balance Sheets.

Receivables

(3) RECEIVABLES

(a) Sales of Accounts Receivable—Effective April 1, 2010, IPL entered into an amended and restated 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 2011, IPL extended through March 2012 the purchase commitment from the third-party financial institution to which it sells its receivables. In exchange for the receivables sold, IPL will receive from the third-party financial institution cash proceeds (based on seasonal limits up to $160 million), and deferred proceeds recorded in "Accounts receivable" on Alliant Energy's and IPL's Condensed Consolidated Balance Sheets.

As of Sep. 30, 2011 and Dec. 31, 2010, IPL sold $204.3 million and $219.6 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 Sep. 30 were as follows (in millions):


	Three Months				Nine Months
	2011		2010		2011		2010
Maximum outstanding aggregate cash proceeds (based on daily outstanding balances)	$	160.0	$	155.0	$	160.0	$	160.0
Average outstanding aggregate cash proceeds (based on daily outstanding balances)		125.4		89.3		114.0		76.0
Costs incurred		0.3		0.3		1.1		1.0

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


	Sep. 30, 2011		Dec. 31, 2010
Customer accounts receivable	$	139.8	$	133.0
Unbilled utility revenues		54.8		80.9
Other receivables		9.7		5.7

Receivables sold		204.3		219.6
Less: cash proceeds (a)		115.0		65.0

Deferred proceeds		89.3		154.6
Less: allowance for doubtful accounts		1.9		1.7

Fair value of deferred proceeds	$	87.4	$	152.9

Outstanding receivables past due	$	16.4	$	14.1

(a)	Changes in cash proceeds during the nine months ended Sep. 30, 2011 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 Sep. 30 were as follows (in millions):


	Three Months				Nine Months
	2011		2010		2011		2010
Collections reinvested in receivables	$	482.3	$	518.4	$	1,367.8	$	925.5
Credit losses, net of recoveries		3.4		3.1		7.9		4.9

(b) Customer Accounts Receivable— Alliant Energy's RMT business accounts for revenues under the percentage of completion method for the majority of its renewable energy projects and the related accounts receivable are recognized at original invoice amount. Revenues recognized but not yet invoiced are recorded as unbilled revenue. Due to the large project volume RMT has experienced in 2011, RMT's customer accounts receivable and unbilled revenues have significantly increased in 2011. As of Sep. 30, 2011 and Dec. 31, 2010, RMT's total customer accounts receivable and unbilled revenues were $107 million and $26 million, respectively, and were recorded in "Accounts receivable—customer" on Alliant Energy's Condensed Consolidated Balance Sheets.

Receivables

(3) RECEIVABLES

(a) Sales of Accounts Receivable—Effective April 1, 2010, IPL entered into an amended and restated 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 2011, IPL extended through March 2012 the purchase commitment from the third-party financial institution to which it sells its receivables. In exchange for the receivables sold, IPL will receive from the third-party financial institution cash proceeds (based on seasonal limits up to $160 million), and deferred proceeds recorded in "Accounts receivable" on Alliant Energy's and IPL's Condensed Consolidated Balance Sheets.

As of Sep. 30, 2011 and Dec. 31, 2010, IPL sold $204.3 million and $219.6 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 Sep. 30 were as follows (in millions):


	Three Months				Nine Months
	2011		2010		2011		2010
Maximum outstanding aggregate cash proceeds (based on daily outstanding balances)	$	160.0	$	155.0	$	160.0	$	160.0
Average outstanding aggregate cash proceeds (based on daily outstanding balances)		125.4		89.3		114.0		76.0
Costs incurred		0.3		0.3		1.1		1.0

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


	Sep. 30, 2011		Dec. 31, 2010
Customer accounts receivable	$	139.8	$	133.0
Unbilled utility revenues		54.8		80.9
Other receivables		9.7		5.7

Receivables sold		204.3		219.6
Less: cash proceeds (a)		115.0		65.0

Deferred proceeds		89.3		154.6
Less: allowance for doubtful accounts		1.9		1.7

Fair value of deferred proceeds	$	87.4	$	152.9

Outstanding receivables past due	$	16.4	$	14.1

(a)	Changes in cash proceeds during the nine months ended Sep. 30, 2011 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 Sep. 30 were as follows (in millions):


	Three Months				Nine Months
	2011		2010		2011		2010
Collections reinvested in receivables	$	482.3	$	518.4	$	1,367.8	$	925.5
Credit losses, net of recoveries		3.4		3.1		7.9		4.9

(b) Customer Accounts Receivable— Alliant Energy's RMT business accounts for revenues under the percentage of completion method for the majority of its renewable energy projects and the related accounts receivable are recognized at original invoice amount. Revenues recognized but not yet invoiced are recorded as unbilled revenue. Due to the large project volume RMT has experienced in 2011, RMT's customer accounts receivable and unbilled revenues have significantly increased in 2011. As of Sep. 30, 2011 and Dec. 31, 2010, RMT's total customer accounts receivable and unbilled revenues were $107 million and $26 million, respectively, and were recorded in "Accounts receivable—customer" on Alliant Energy's Condensed Consolidated Balance Sheets.