DEBT

Note 7(a) Short-term Debt - In August 2017, Alliant Energy, IPL and WPL entered into a single new credit facility agreement, which expires in August 2022. The new credit facility agreement includes financial covenants similar to those that were included in the previous credit facility agreements. As of September 30, 2017, the short-term borrowing capacity under the new credit facility agreement totaled $1 billion ($300 million for Alliant Energy at the parent company level, $300 million for IPL and $400 million for WPL). Subject to certain conditions, Alliant Energy (at the parent company level), IPL and WPL may each reallocate and change its initial sublimit up to $500 million, $400 million and $500 million, respectively, within the $1 billion total commitment. Information regarding commercial paper classified as short-term debt was as follows (dollars in millions):



September 30, 2017	Alliant Energy	IPL	WPL
Commercial paper outstanding	$390.3	$4.0	$224.6
Commercial paper weighted average interest rates	1.2%	1.4%	1.1%
Available credit facility capacity (a)	$569.7	$256.0	$175.4



	Alliant Energy		IPL		WPL
Three Months Ended September 30	2017	2016	2017	2016	2017	2016
Maximum amount outstanding (based on daily outstanding balances)	$424.4	$248.0	$20.0	$3.1	$271.2	$55.4
Average amount outstanding (based on daily outstanding balances)	$386.2	$220.1	$0.4	$0.1	$217.0	$36.4
Weighted average interest rates	1.3%	0.6%	1.4%	0.6%	1.1%	0.4%
Nine Months Ended September 30
Maximum amount outstanding (based on daily outstanding balances)	$424.4	$248.0	$20.0	$3.1	$271.2	$62.9
Average amount outstanding (based on daily outstanding balances)	$323.9	$210.7	$0.5	$—	$144.2	$33.2
Weighted average interest rates	1.1%	0.6%	1.2%	0.6%	1.0%	0.4%


(a)	Alliant Energy’s and IPL’s available credit facility capacities reflect outstanding commercial paper classified as both short- and long-term debt at September 30, 2017.

In July 2017, AEF entered into a $95 million, 364-day variable-rate (1.8% at September 30, 2017) term loan credit agreement (with Alliant Energy as guarantor) related to the acquisition of a non-regulated wind farm located in Oklahoma, which includes substantially the same financial covenants that are included in Alliant Energy’s current credit facility agreement. Refer to Note 5(a) for further discussion of the non-regulated wind farm acquisition.

NOTE 7(b) Long-term Debt - As of September 30, 2017, $40.0 million of commercial paper was recorded in “Long-term debt, net” on Alliant Energy’s and IPL’s balance sheets due to the existence of a long-term credit facility that back-stops this commercial paper balance, along with Alliant Energy’s and IPL’s intent and ability to refinance these balances on a long-term basis. As of September 30, 2017, this commercial paper balance had a 1.4% interest rate.

In October 2017, WPL issued $300 million of 3.05% debentures due 2027. The proceeds from the issuance were used by WPL to reduce commercial paper and for general corporate purposes.

Debt [Line Items]

Debt

DEBT

Note 7(a) Short-term Debt - In August 2017, Alliant Energy, IPL and WPL entered into a single new credit facility agreement, which expires in August 2022. The new credit facility agreement includes financial covenants similar to those that were included in the previous credit facility agreements. As of September 30, 2017, the short-term borrowing capacity under the new credit facility agreement totaled $1 billion ($300 million for Alliant Energy at the parent company level, $300 million for IPL and $400 million for WPL). Subject to certain conditions, Alliant Energy (at the parent company level), IPL and WPL may each reallocate and change its initial sublimit up to $500 million, $400 million and $500 million, respectively, within the $1 billion total commitment. Information regarding commercial paper classified as short-term debt was as follows (dollars in millions):



September 30, 2017	Alliant Energy	IPL	WPL
Commercial paper outstanding	$390.3	$4.0	$224.6
Commercial paper weighted average interest rates	1.2%	1.4%	1.1%
Available credit facility capacity (a)	$569.7	$256.0	$175.4



	Alliant Energy		IPL		WPL
Three Months Ended September 30	2017	2016	2017	2016	2017	2016
Maximum amount outstanding (based on daily outstanding balances)	$424.4	$248.0	$20.0	$3.1	$271.2	$55.4
Average amount outstanding (based on daily outstanding balances)	$386.2	$220.1	$0.4	$0.1	$217.0	$36.4
Weighted average interest rates	1.3%	0.6%	1.4%	0.6%	1.1%	0.4%
Nine Months Ended September 30
Maximum amount outstanding (based on daily outstanding balances)	$424.4	$248.0	$20.0	$3.1	$271.2	$62.9
Average amount outstanding (based on daily outstanding balances)	$323.9	$210.7	$0.5	$—	$144.2	$33.2
Weighted average interest rates	1.1%	0.6%	1.2%	0.6%	1.0%	0.4%


(a)	Alliant Energy’s and IPL’s available credit facility capacities reflect outstanding commercial paper classified as both short- and long-term debt at September 30, 2017.

In July 2017, AEF entered into a $95 million, 364-day variable-rate (1.8% at September 30, 2017) term loan credit agreement (with Alliant Energy as guarantor) related to the acquisition of a non-regulated wind farm located in Oklahoma, which includes substantially the same financial covenants that are included in Alliant Energy’s current credit facility agreement. Refer to Note 5(a) for further discussion of the non-regulated wind farm acquisition.

NOTE 7(b) Long-term Debt - As of September 30, 2017, $40.0 million of commercial paper was recorded in “Long-term debt, net” on Alliant Energy’s and IPL’s balance sheets due to the existence of a long-term credit facility that back-stops this commercial paper balance, along with Alliant Energy’s and IPL’s intent and ability to refinance these balances on a long-term basis. As of September 30, 2017, this commercial paper balance had a 1.4% interest rate.

In October 2017, WPL issued $300 million of 3.05% debentures due 2027. The proceeds from the issuance were used by WPL to reduce commercial paper and for general corporate purposes.