Alliant Energy Announces 2012 Results

                    Alliant Energy Announces 2012 Results

PR Newswire

MADISON, Wis., Feb. 14, 2013

MADISON, Wis., Feb.14, 2013 /PRNewswire/ --Alliant Energy Corporation (NYSE:
LNT) today announced U.S. generally accepted accounting principles (GAAP) and
non-GAAP consolidated unaudited earnings from continuing operations for 2012
and 2011 as follows:

                        Adjusted (non-GAAP) EPS from  GAAP EPS from Continuing
                        Continuing Operations         Operations
                        2012              2011        2012           2011
Utility and Corporate   $2.87             $2.77       $2.75          $2.57
Services
Non-regulated and       0.18              0.18        0.18           0.35
Parent
Alliant Energy          $3.05             $2.95       $2.93          $2.92
Consolidated

"In 2012, we delivered solid financial results," said Patricia Kampling,
Alliant Energy Chairman, President and CEO. "Consistent with our long-term
earnings growth goal, our non-GAAP weather adjusted earnings increased by 5%
over calendar year 2011."

Utility and Corporate Services - Alliant Energy's Utility and Alliant Energy
Corporate Services, Inc. (Corporate Services) operations generated $2.87 per
share of non-GAAP earnings per share (EPS) from continuing operations in 2012,
which was $0.10 per share higher than 2011. Income tax impacts at IPL due to
Iowa rate-making practices, lower generation operation and maintenance
expenses, higher WPL retail fuel cost recovery, and higher AFUDC related to
emission control projects led to higher EPS in 2012 when compared to 2011.
These positive EPS drivers were partially offset by higher depreciation
expense, higher capacity charges for nuclear purchased power agreements, and
record warm weather in the first quarter of 2012, negatively impacting
electric and gas sales. The weather impact on electric and gas sales was
$0.12 per share and $0.16 per share in 2012 and 2011, respectively.

Non-regulated and Parent - Alliant Energy's non-regulated and parent
operations generated $0.18 per share of non-GAAP EPS from continuing
operations in 2012, which was the same as 2011.

Earnings Adjustments - 2012 non-GAAP EPS excludes net losses of $0.12 per
share from adjustments consisting of increased tax obligations at the
utilities due to state tax apportionment changes due to the RMT sale and
regulatory-related credits. 2011 non-GAAP EPS excludes net losses of $0.03
per share from adjustments consisting of impairment charges,
regulatory-related charges and credits, charges related to an amendment to
Alliant Energy's Cash Balance Pension Plan, charges for emission allowance
contracts and the reversal of deferred tax valuation allowances. Non-GAAP
adjustments, which relate to material charges or income that are not normally
associated with ongoing operations, are provided as a supplement to results
reported in accordance with GAAP. Refer to page 5 of this document for
additional details of the earnings adjustments for 2012 and 2011.

Details regarding GAAP EPS from continuing operations variances between 2012
and 2011 for Alliant Energy's operations are as follows:

                               Total Year GAAP EPS
                               2012        2011
Utility and Corporate Services $2.75       $2.57
Non-regulated and Parent       0.18        0.35
Alliant Energy Consolidated    $2.93       $2.92



                                                     2012     2011    Variance
Utility and Corporate Services operations:
Non-recurring state income tax impacts in 2012       ($0.14)  $—      ($0.14)
Income tax impacts at IPL due to Iowa rate-making
practices associated with mixed service and repairs  0.12     —       0.12
projects
Higher depreciation expense                                           (0.08)
Higher capacity charges for nuclear purchased power                   (0.07)
agreements
Impairment charges in 2011                           —        (0.07)  0.07
Net regulatory-related charges from IPL electric     —        (0.06)  0.06
rate case decision in 2011
Lower generation operation and maintenance expenses                   0.06
WPL retail fuel cost recovery                        0.03     (0.02)  0.05
Cash Balance Pension Plan amendment charges in 2011  —        (0.05)  0.05
Higher AFUDC (primarily due to emission control                       0.05
projects)
Weather impact on electric and gas sales             0.12     0.16    (0.04)
Charges for emission allowance contracts in 2011     —        (0.02)  0.02
Regulatory-related credits from WPL rate case        0.02     —       0.02
decision in 2012
Other                                                                 0.01
Total Utility and Corporate Services operations                       $0.18
Non-regulated and Parent operations:
Non-recurring state income tax impacts in 2011       $—       $0.17   ($0.17)
Total Non-regulated and Parent operations                             ($0.17)

Non-recurring state income tax impacts in 2012 - Alliant Energy utilizes state
apportionment projections to record its deferred tax assets and liabilities
for each reporting period. These state apportionment projections are
significantly impacted by the estimated amount of revenues expected in the
future from each state jurisdiction for Alliant Energy's consolidated tax
group, including both its regulated and non-regulated operations. The
forecasted amount of revenues from each state jurisdiction for Alliant
Energy's consolidated tax group changed in the first quarter of 2012. This
resulted from the planned sale of the RMT business. The change in the state
apportionment projections resulted in non-recurring state income tax charges
of $15 million ($8 million at IPL and $7 million at WPL), or $0.14 per share
in the first quarter of 2012.

Income tax impacts at IPL due to Iowa rate-making practices associated with
mixed service and repairs projects - In 2012, the Internal Revenue Service
audit process to review the elected change in accounting method for allocation
of mixed service costs and repairs expenditures was completed. Prior to 2012,
tax expense and benefits related to mixed service costs and repairs book to
tax differences were recorded in the tax benefit rider regulatory liability.
Upon completion of the IRS audit process, the tax expenses and benefits
related to mixed service costs and repairs began flowing through the income
statement in 2012 pursuant to Iowa rate-making practices. The impact of the
changes in income tax impacts at IPL due to Iowa rate-making practices
associated with mixed service and repairs projects resulted in a positive
year-over-year variance of $0.12 per share.

Weather impact on electric and gas sales - Weather in Alliant Energy's service
territory in the first quarter of 2012 was among the warmest on record with
approximately 22 percent fewer heating degree days than normal. Even though
the summer of 2012 was warmer than 2011, it was not enough to offset the first
quarter negative EPS impact. The impact of the changes in weather on Alliant
Energy's electric and gas sales resulted in a negative year-over-year variance
of $0.04 per share.

Regulatory-related credits from WPL retail rate case decision in June 2012 -
In July 2012, the Public Service Commission of Wisconsin (PSCW) issued its
written order on the 2013/2014 test period electric and gas retail rate case
request filed by WPL. The regulatory-related credits from this decision
resulted in an increase in earnings of $0.02 per share in the second quarter
of 2012.

2013 Earnings Guidance

Alliant Energy is affirming its 2013 earnings per share guidance as follows:

Utility and Corporate Services $2.90 - $3.10
Non-regulated and Parent       0.05 - 0.15
Alliant Energy Consolidated    $2.95 - $3.25

"In 2013, we expect to continue to see the earnings benefit of our rate base
growth initiatives, while at the same time we anticipate the tax benefit
riders in Iowa, and continued cost controls across the service territory, will
help ensure we maintain competitive rates," said Patricia Kampling, Alliant
Energy Chairman, President and CEO.

The 2013 earnings guidance does not include the impacts of any non-cash
valuation adjustments, regulatory-related charges or credits, reorganization
or restructuring charges, discontinued operations, future changes in laws or
regulations, charges related to preferred stock redemptions, adjustments made
to deferred tax assets and liabilities from valuation allowances, pending
lawsuits and disputes, federal and state income tax audits and other Internal
Revenue Service proceedings or changes in generally accepted accounting
principles that may impact the reported results of Alliant Energy.

Drivers for Alliant Energy's 2013 earnings guidance include, but are not
limited to:

  oStable economy and resulting implications on utility sales
  oNormal weather and operating conditions in its utility service territories
  oAbility of IPL and WPL to earn their authorized rates of return
  oRegulatory decisions impacting earnings at IPL from tax initiatives
  oAbility of WPL to recover future purchased power, fuel and fuel-related
    costs through rates in a timely manner
  oContinuing cost controls and operational efficiencies
  oExecution of IPL's and WPL's capital expenditure plans
  oConsolidated effective tax rate of 14%

Earnings Conference Call

A conference call to review the 2012 results is scheduled for Thursday,
February 14th at 9:00 a.m. central time. Alliant Energy Chairman, President
and Chief Executive Officer Patricia Kampling and Chief Financial Officer Tom
Hanson will host the call. The conference call is open to the public and can
be accessed in two ways. Interested parties may listen to the call by dialing
888-221-9591 (United States or Canada) or 913-312-1434 (International),
passcode 8244179. Interested parties may also listen to a webcast at
www.alliantenergy.com/investors. In conjunction with the information in this
earnings announcement and the conference call, Alliant Energy posted
supplemental materials on its website. A replay of the call will be available
through February21, 2013, at 888-203-1112 (United States or Canada) or
719-457-0820 (International), passcode 8244179. An archive of the webcast
will be available on the Company's Web site at www.alliantenergy.com/investors
for 12 months.

Alliant Energy is the parent company of two public utility companies -
Interstate Power and Light Company and Wisconsin Power and Light Company - and
of Alliant Energy Resources, LLC, the parent company of Alliant Energy's
non-regulated operations. Alliant Energy is an energy-services provider with
utility subsidiaries serving approximately 1 million electric and 415,000
natural gas customers. Providing its customers in the Midwest with regulated
electricity and natural gas service is the Company's primary focus. Alliant
Energy, headquartered in Madison, Wis., is a Fortune 1000 company traded on
the New York Stock Exchange under the symbol LNT. For more information, visit
the Company's Web site at www.alliantenergy.com.

This press release includes forward-looking statements. These forward-looking
statements can be identified as such because the statements include words such
as "expect," "anticipate," "plan," or other words of similar import.
Similarly, statements that describe future financial performance or plans or
strategies are forward-looking statements. Such forward looking statements
are subject to certain risks and uncertainties that could cause actual results
to differ materially from those expressed in, or implied by, such statements.
Actual results could be materially affected by the following factors, among
others:

  ofederal and state regulatory or governmental actions, including the impact
    of energy, tax, financial and health care legislation, and of regulatory
    agency orders;
  oIPL's and WPL's ability to obtain adequate and timely rate relief to allow
    for, among other things, the recovery of operating costs, fuel costs,
    transmission costs, deferred expenditures, capital expenditures, and
    remaining costs related to generating units that may be permanently
    closed, earning their authorized rates of return, and the payments to
    their parent of expected levels of dividends;
  othe ability to continue cost controls and operational efficiencies;
  othe impact of IPL's retail electric base rate freeze in Iowa through 2013;
  othe impact of WPL's retail electric and gas base rate freeze in Wisconsin
    through 2014;
  oweather effects on results of utility operations including impacts of
    temperature changes and drought conditions in IPL's and WPL's service
    territories on customers' demand for electricity and gas;
  othe state of the economy in IPL's and WPL's service territories and
    resulting implications on sales, margins and ability to collect unpaid
    bills;
  odevelopments that adversely impact Alliant Energy's, IPL's and WPL's
    ability to implement their strategic plans, including unanticipated issues
    with new emission control equipment for various coal-fired generating
    facilities of IPL and WPL, IPL's construction of its proposed natural
    gas-fired electric generating facility in Iowa, IPL's new purchased power
    agreement with NextEra Energy Resources, LLC, Alliant Energy Resources,
    LLC's selling price of the electricity output from its new 100 megawatt
    Franklin County wind project, and the potential decommissioning of certain
    generating facilities of IPL and WPL;
  oissues related to the availability of generating facilities and the supply
    and delivery of fuel and purchased electricity and the price thereof,
    including the ability to recover and to retain the recovery of purchased
    power, fuel and fuel-related costs through rates in a timely manner;
  othe impact that fuel and fuel-related prices may have on IPL's and WPL's
    customers' demand for utility services;
  othe ability to defend against environmental claims brought by state and
    federal agencies, such as the U.S. Environmental Protection Agency, or
    third parties, such as the Sierra Club;
  oissues associated with environmental remediation efforts and with
    environmental compliance generally, including changing environmental laws
    and regulations and litigation associated with changing environmental laws
    and regulations;
  othe ability to recover through rates all environmental compliance and
    remediation costs, including costs for projects put on hold due to
    uncertainty of future environmental laws and regulations;
  othe direct or indirect effects resulting from terrorist incidents,
    including cyber terrorism, or responses to such incidents;
  oimpacts of future tax benefits from deductions for repairs expenditures
    and mixed service costs and temporary differences from historical tax
    benefits from such deductions that are included in rates when the
    differences reverse in future periods;
  oany material post-closing adjustments related to any past asset
    divestitures, including the sale of RMT, Inc.;
  ocontinued access to the capital markets on competitive terms and rates,
    and the actions of credit rating agencies;
  oinflation and interest rates;
  ochanges to the creditworthiness of counterparties with which Alliant
    Energy, IPL and WPL have contractual arrangements, including participants
    in the energy markets and fuel suppliers and transporters;
  oissues related to electric transmission, including operating in Regional
    Transmission Organization (RTO) energy and ancillary services markets, the
    impacts of potential future billing adjustments and cost allocation
    changes from RTOs and recovery of costs incurred;
  ounplanned outages, transmission constraints or operational issues
    impacting fossil or renewable generating facilities and risks related to
    recovery of resulting incremental costs through rates;
  oAlliant Energy's ability to successfully pursue appropriate appeals with
    respect to, and any liabilities arising out of, the alleged violation of
    the Employee Retirement Income Security Act of 1974 by Alliant Energy's
    Cash Balance Pension Plan;
  ocurrent or future litigation, regulatory investigations, proceedings or
    inquiries;
  oAlliant Energy's ability to sustain its dividend payout ratio goal;
  oemployee workforce factors, including changes in key executives,
    collective bargaining agreements and negotiations, work stoppages or
    additional restructurings;
  oimpacts that storms or natural disasters, including forest or prairie
    fires, in IPL's and WPL's service territories may have on their operations
    and recovery of, and rate relief for, costs associated with restoration
    activities;
  oaccess to technological developments;
  omaterial changes in retirement and benefit plan costs;
  othe impact of incentive compensation plans accruals;
  othe effect of accounting pronouncements issued periodically by
    standard-setting bodies;
  othe impact of changes to governmental incentives for wind projects;
  othe impact of adjustments made to deferred tax assets and liabilities from
    state apportionment assumptions;
  othe ability to utilize tax credits and net operating losses generated to
    date, and those that may be generated in the future, before they expire;
  othe ability to successfully complete tax audits, changes in tax accounting
    methods and appeals with no material impact on earnings and cash flows;
    and
  ofactors listed in the "2013 Earnings Guidance" sections of this press
    release.

Without limitation, the expectations with respect to 2013 earnings guidance in
this press release are forward-looking statements and are based in part on
certain assumptions made by Alliant Energy, some of which are referred to in
the forward-looking statements. Alliant Energy cannot provide any assurance
that the assumptions referred to in the forward-looking statements or
otherwise are accurate or will prove to be correct. Any assumptions that are
inaccurate or do not prove to be correct could have a material adverse effect
on Alliant Energy's ability to achieve the estimates or other targets included
in the forward-looking statements. The forward-looking statements included
herein are made as of the date hereof and Alliant Energy undertakes no
obligation to update publicly such statements to reflect subsequent events or
circumstances.

Note: Unless otherwise noted, all "per share" references in this release refer
to earnings per diluted share.

ALLIANT ENERGY CORPORATION
FULL YEAR EARNINGS SUMMARY

A summary of Alliant Energy's 2012 results compared to 2011 results is as
follows:

EPS:                             GAAP EPS        Adjustments    Non-GAAP EPS
                                 2012    2011    2012   2011    2012    2011
IPL                              $1.24   $1.12   $0.08  $0.12   $1.32   $1.24
WPL                              1.47    1.45    0.04   0.08    1.51    1.53
Corporate Services               0.04    —       —      —       0.04    —
Subtotal for Utility and         2.75    2.57    0.12   0.20    2.87    2.77
Corporate Services
Non-regulated and Parent         0.18    0.35    —      (0.17)  0.18    0.18
EPS from continuing operations   2.93    2.92    0.12   0.03    3.05    2.95
EPS from discontinued operations (0.04)  (0.18)  —      —       (0.04)  (0.18)
Alliant Energy Consolidated      $2.89   $2.74   $0.12  $0.03   $3.01   $2.77



Earnings (in millions):     GAAP Income (Loss)  Adjustments    Non-GAAP Income
                                                               (Loss)
                            2012       2011     2012   2011    2012     2011
IPL                         $137.6     $124.3   $8.1   $13.2   $145.7   $137.5
WPL                         162.4      160.2    5.1    8.4     167.5    168.6
Corporate Services          4.8        —        —      —       4.8      —
Subtotal for Utility and    304.8      284.5    13.2   21.6    318.0    306.1
Corporate Services
Non-regulated and Parent    20.1       38.6     0.1    (18.6)  20.2     20.0
Total earnings from         324.9      323.1    13.3   3.0     338.2    326.1
continuing operations
Loss from discontinued      (5.1)      (19.5)   —      —       (5.1)    (19.5)
operations
Alliant Energy Consolidated $319.8     $303.6   $13.3  $3.0    $333.1   $306.6

Adjusted, or non-GAAP, operating earnings for 2012 and 2011 do not include the
following items (after-tax) that were included in the reported GAAP earnings:



                                      Non-GAAP Income (Loss)
                                      Adjustments             Non-GAAP EPS
                                      (in millions)           Adjustments
                                      2012          2011      2012     2011
Utility and Corporate Services
Operations:
Non-recurring state income tax        ($15.1)       $—        ($0.14)  $—
impacts
Regulatory-related credits from WPL   1.9           —         0.02     —
rate case decision
Impairment charges                    —             (7.1)     —        (0.07)
Net regulatory-related charges from   —             (6.6)     —        (0.06)
IPL electric rate case decision
Cash balance pension plan amendment   —             (5.8)     —        (0.05)
charges
Charges for emission allowance        —             (2.1)     —        (0.02)
contracts
Subtotal for Utility and Corporate    (13.2)        (21.6)    (0.12)   (0.20)
Services Operations
Non-regulated and Parent Operations:
Non-recurring state income tax        (0.1)         18.9      —        0.17
impacts
Cash balance pension plan amendment   —             (0.3)     —        —
charges
Subtotal for Non-regulated and Parent (0.1)         18.6      —        0.17
Operations
Alliant Energy Consolidated           ($13.3)       ($3.0)    ($0.12)  ($0.03)



ALLIANT ENERGY CORPORATION
FOURTH QUARTER EARNINGS SUMMARY

Details regarding fourth quarter GAAP EPS from continuing operations and
variances for Alliant Energy's operations are as follows:



                               Q4 GAAP EPS
                               2012   2011
Utility and Corporate Services $0.57  $0.44
Non-regulated and Parent       0.07   0.14
Alliant Energy Consolidated    $0.64  $0.58



                                                      2012    2011    Variance
Utility and Corporate Services operations:
Income tax impacts at IPL due to Iowa rate-making
practices associated with mixed service and repairs   $0.07   $—      $0.07
projects
Weather impact on electric and gas sales              (0.02)  (0.06)  0.04
Electric tax benefit rider impact at IPL (timing      (0.04)  (0.05)  0.01
between quarters)
Other                                                                 0.01
Total Utility and Corporate Services operations                       $0.13
Non-regulated and Parent operations:
Electric tax benefit rider impact at Parent (timing   $0.02   $0.04   ($0.02)
between quarters)
Other                                                                 (0.05)
Total Non-regulated and Parent operations                             ($0.07)



ALLIANT ENERGY CORPORATION
CONSOLIDATED STATEMENTS OF INCOME (Unaudited)
                           Quarter Ended December 31,  Year Ended December 31,
                           2012            2011        2012       2011
                           (dollars in millions, except per share amounts)
Operating revenues:
Utility:
Electric                   $589.0          $598.1      $2,589.3   $2,635.8
Gas                        132.4           134.2       396.3      476.7
Other                      17.0            16.2        56.7       62.0
Non-regulated              12.5            12.3        52.2       46.9
                           750.9           760.8       3,094.5    3,221.4
Operating expenses:
Utility:
Electric production fuel   161.9           174.5       712.3      764.5
and energy purchases
Purchased electric         55.3            52.0        271.5      257.2
capacity
Electric transmission      85.6            81.2        341.3      323.8
service
Cost of gas sold           76.1            84.2        217.2      295.2
Other operation and        157.4           153.6       590.0      630.2
maintenance
Non-regulated operation    3.3             4.7         11.9       18.0
and maintenance
Depreciation and           85.0            81.0        332.4      321.0
amortization
Taxes other than income    24.7            23.6        98.2       98.2
taxes
                           649.3           654.8       2,574.8    2,708.1
Operating income           101.6           106.0       519.7      513.3
Interest expense and
other:
Interest expense           40.9            38.6        156.7      158.3
Equity income from
unconsolidated             (10.9)          (9.7)       (41.3)     (39.3)
investments, net
Allowance for funds used   (7.5)           (3.4)       (21.9)     (12.0)
during construction
Interest income and other  (1.6)           (2.1)       (4.0)      (4.3)
                           20.9            23.4        89.5       102.7
Income from continuing
operations before income   80.7            82.6        430.2      410.6
taxes
Income taxes               5.6             14.7        89.4       69.2
Income from continuing     75.1            67.9        340.8      341.4
operations, net of tax
Loss from discontinued     (2.8)           (6.9)       (5.1)      (19.5)
operations, net of tax
Net income                 72.3            61.0        335.7      321.9
Preferred dividend
requirements of            4.0             4.0         15.9       18.3
subsidiaries
Net income attributable to
Alliant Energy common      $68.3           $57.0       $319.8     $303.6
shareowners
Weighted average number of
common shares outstanding  110,772         110,663     110,753    110,626
(basic) (000s)
Weighted average number of
common shares outstanding  110,782         110,709     110,768    110,678
(diluted) (000s)
Earnings per weighted
average common share
attributable to Alliant
Energy common shareowners
(basic and diluted):
Income from continuing     $0.64           $0.58       $2.93      $2.92
operations, net of tax
Loss from discontinued     (0.02)          (0.07)      (0.04)     (0.18)
operations, net of tax
Net income                 $0.62           $0.51       $2.89      $2.74
Amounts attributable to
Alliant Energy common
shareowners:
Income from continuing     $71.1           $63.9       $324.9     $323.1
operations, net of tax
Loss from discontinued     (2.8)           (6.9)       (5.1)      (19.5)
operations, net of tax
Net income                 $68.3           $57.0       $319.8     $303.6
Dividends declared per     $0.45           $0.425      $1.80      $1.70
common share



ALLIANT ENERGY CORPORATION
CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)
                                                           December 31,
                                                           2012       2011
                                                           (in millions)
ASSETS:
Property, plant and equipment:
Utility plant in service, net of accumulated depreciation  $6,942.3   $6,322.4
Utility construction work in progress                      418.8      257.2
Other property, plant and equipment, net of accumulated    476.9      453.7
depreciation
Current assets:
Cash and cash equivalents                                  21.2       11.4
Other current assets                                       973.1      859.2
Investments                                                319.0      300.7
Other assets                                               1,634.2    1,483.3
Total assets                                               $10,785.5  $9,687.9
CAPITALIZATION AND LIABILITIES:
Capitalization:
Alliant Energy Corporation common equity                   $3,134.9   $3,013.0
Cumulative preferred stock of subsidiaries, net            205.1      205.1
Noncontrolling interest                                    1.8        1.8
Long-term debt, net (excluding current portion)            3,136.6    2,703.1
Total capitalization                                       6,478.4    5,923.0
Current liabilities:
Current maturities of long-term debt                       1.5        1.4
Commercial paper                                           217.5      102.8
Other current liabilities                                  801.0      751.0
Other long-term liabilities and deferred credits           3,287.1    2,909.7
Total capitalization and liabilities                       $10,785.5  $9,687.9



ALLIANT ENERGY CORPORATION
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)
                                                       Year Ended December 31,
                                                       2012           2011
                                                       (in millions)
Cash flows from operating activities                   $841.1         $702.7
Cash flows used for investing activities:
Construction and acquisition expenditures:
Utility business                                       (1,025.5)      (608.1)
Alliant Energy Corporate Services, Inc. and            (132.6)        (65.3)
non-regulated businesses
Other                                                  2.6            21.3
Net cash flows used for investing activities           (1,155.5)      (652.1)
Cash flows from (used for) financing activities:
Common stock dividends                                 (199.3)        (188.1)
Payments to redeem preferred stock                     —              (40.0)
Net change in commercial paper                         164.7          55.4
Proceeds from issuance of long-term debt               385.0          0.4
Other                                                  (26.2)         (26.2)
Net cash flows from (used for) financing activities    324.2          (198.5)
Net increase (decrease) in cash and cash equivalents   9.8            (147.9)
Cash and cash equivalents at beginning of period       11.4           159.3
Cash and cash equivalents at end of period             $21.2          $11.4



KEY FINANCIAL STATISTICS
                                         December 31, 2012  December 31, 2011
Common shares outstanding (000s)         110,987            111,019
Book value per share                     $28.25             $27.14
Quarterly common dividend rate per share $0.45              $0.425



KEY OPERATING STATISTICS
                           Quarter Ended December 31,  Year Ended December 31,
                           2012            2011        2012          2011
Utility electric sales
(000s of MWh)
Residential                1,792           1,792       7,679         7,740
Commercial                 1,541           1,527       6,352         6,253
Industrial                 2,856           2,876       11,555        11,504
Retail subtotal            6,189           6,195       25,586        25,497
Sales for resale:
Wholesale                  795             799         3,317         3,372
Bulk power and other       485             277         1,303         1,757
Other                      40              39          151           151
Total                      7,509           7,310       30,357        30,777
Utility retail electric
customers (at December 31)
Residential                844,388         842,780
Commercial                 137,791         136,732
Industrial                 2,842           2,895
Total                      985,021         982,407
Utility gas sold and
transported (000s of Dth)
Residential                8,241           7,657       23,071        26,891
Commercial                 5,932           5,737       17,115        19,271
Industrial                 1,035           982         3,068         3,848
Retail subtotal            15,208          14,376      43,254        50,010
Transportation / other     14,229          12,710      57,532        52,210
Total                      29,437          27,086      100,786       102,220
Utility retail gas
customers (at December 31)
Residential                368,708         367,497
Commercial                 45,684          45,667
Industrial                 456             496
Total                      414,848         413,660
Estimated margin increases (decreases) from net impacts of weather (in
millions) -
                           Quarter Ended December 31,  Year Ended December 31,
                           2012            2011        2012          2011
Electric margins           ($1)            ($6)        $36           $29
Gas margins                (2)             (5)         (13)          —
Total weather impact on    ($3)            ($11)       $23           $29
margins



                           Quarter Ended December 31,  Year Ended December 31,
                           2012     2011   Normal      2012     2011    Normal
                                           ^(a)                         ^(a)
Cooling degree days (CDDs)
^(a)
Cedar Rapids, Iowa (IPL)   8        20     11          1,052    887     740
Madison, Wisconsin (WPL)   3        10     7           1,070    814     625
Heating degree days (HDDs)
^(a)
Cedar Rapids, Iowa (IPL)   2,481    2,172  2,523       5,901    6,745   6,794
Madison, Wisconsin (WPL)   2,383    2,188  2,559       5,964    6,992   7,089



     HDDs and CDDs are calculated using a simple average of the high and low
^(a) temperatures each day compared to a 65 degree base. Normal degree days
     are calculated using a rolling 20-year average of historical HDDs and
     CDDs.

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SOURCE Alliant Energy Corporation

Website: http://www.alliantenergy.com
Contact: Media, Scott Reigstad, +1-608-458-3145, or Investor Relations, Susan
Gille, +1-608-458-3956
 
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