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Receivables (Tables)
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12 Months Ended |
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Dec. 31, 2012
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| Accounts, Notes, Loans and Financing Receivable [Line Items] |
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| 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 were as follows (in millions): | | | | | | | | 2012 | | 2011 | | 2010 | Maximum outstanding aggregate cash proceeds (based on daily outstanding balances) | $160.0 | | $160.0 | | $160.0 | Average outstanding aggregate cash proceeds (based on daily outstanding balances) | 119.8 | | 118.1 | | 78.1 | Costs incurred | 1.4 | | 1.5 | | 1.4 |
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| Receivables Sold Under The Agreement |
As of December 31, the attributes of IPL’s receivables sold under the Agreement were as follows (in millions): | | | | | | 2012 | | 2011 | Customer accounts receivable | $118.2 | | $122.4 | Unbilled utility revenues | 77.4 | | 65.4 | Other receivables | 2.8 | | 7.5 | Receivables sold | 198.4 | | 195.3 | Less: cash proceeds (a) | 130.0 | | 140.0 | Deferred proceeds | 68.4 | | 55.3 | Less: allowance for doubtful accounts | 1.6 | | 1.6 | Fair value of deferred proceeds | $66.8 | | $53.7 | Outstanding receivables past due | $16.1 | | $15.9 |
| | (a) | Changes in cash proceeds are recorded in “Sales of accounts receivable” in operating activities in Alliant Energy’s and IPL’s Consolidated Statements of Cash Flows. |
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| Additional Attributes Of Receivables Sold Under The Agreement |
Additional attributes of IPL’s receivables sold under the Agreement were as follows (in millions): | | | | | | | | 2012 | | 2011 | | 2010 | Collections reinvested in receivables | $1,771.6 | | $1,795.7 | | $1,354.2 | Credit losses, net of recoveries | 10.0 | | 10.9 | | 7.9 |
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| Advances For Customer Energy Efficiency Projects |
At December 31, outstanding advances for customer energy efficiency projects were as follows (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | Current portion |
| $14.9 |
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| $22.2 |
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| $0.8 |
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| $1.7 |
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| $14.1 |
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| $20.5 |
| Non-current portion | 13.0 |
| | 28.2 |
| | 0.6 |
| | 1.7 |
| | 12.4 |
| | 26.5 |
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| $27.9 |
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| $50.4 |
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| $1.4 |
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| $3.4 |
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| $26.5 |
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| $47.0 |
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IPL [Member]
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| 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 were as follows (in millions): | | | | | | | | 2012 | | 2011 | | 2010 | Maximum outstanding aggregate cash proceeds (based on daily outstanding balances) | $160.0 | | $160.0 | | $160.0 | Average outstanding aggregate cash proceeds (based on daily outstanding balances) | 119.8 | | 118.1 | | 78.1 | Costs incurred | 1.4 | | 1.5 | | 1.4 |
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| Receivables Sold Under The Agreement |
As of December 31, the attributes of IPL’s receivables sold under the Agreement were as follows (in millions): | | | | | | 2012 | | 2011 | Customer accounts receivable | $118.2 | | $122.4 | Unbilled utility revenues | 77.4 | | 65.4 | Other receivables | 2.8 | | 7.5 | Receivables sold | 198.4 | | 195.3 | Less: cash proceeds (a) | 130.0 | | 140.0 | Deferred proceeds | 68.4 | | 55.3 | Less: allowance for doubtful accounts | 1.6 | | 1.6 | Fair value of deferred proceeds | $66.8 | | $53.7 | Outstanding receivables past due | $16.1 | | $15.9 |
| | (a) | Changes in cash proceeds are recorded in “Sales of accounts receivable” in operating activities in Alliant Energy’s and IPL’s Consolidated Statements of Cash Flows. |
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| Additional Attributes Of Receivables Sold Under The Agreement |
Additional attributes of IPL’s receivables sold under the Agreement were as follows (in millions): | | | | | | | | 2012 | | 2011 | | 2010 | Collections reinvested in receivables | $1,771.6 | | $1,795.7 | | $1,354.2 | Credit losses, net of recoveries | 10.0 | | 10.9 | | 7.9 |
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| Advances For Customer Energy Efficiency Projects |
At December 31, outstanding advances for customer energy efficiency projects were as follows (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | Current portion |
| $14.9 |
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| $22.2 |
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| $0.8 |
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| $1.7 |
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| $14.1 |
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| $20.5 |
| Non-current portion | 13.0 |
| | 28.2 |
| | 0.6 |
| | 1.7 |
| | 12.4 |
| | 26.5 |
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| $27.9 |
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| $50.4 |
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| $1.4 |
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| $3.4 |
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| $26.5 |
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| $47.0 |
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WPL [Member]
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| Accounts, Notes, Loans and Financing Receivable [Line Items] |
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| Advances For Customer Energy Efficiency Projects |
At December 31, outstanding advances for customer energy efficiency projects were as follows (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | Alliant Energy | | IPL | | WPL | | 2012 | | 2011 | | 2012 | | 2011 | | 2012 | | 2011 | Current portion |
| $14.9 |
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| $22.2 |
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| $0.8 |
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| $1.7 |
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| $14.1 |
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| $20.5 |
| Non-current portion | 13.0 |
| | 28.2 |
| | 0.6 |
| | 1.7 |
| | 12.4 |
| | 26.5 |
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| $27.9 |
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| $50.4 |
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| $1.4 |
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| $3.4 |
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| $26.5 |
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| $47.0 |
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