Duke Energy Reports First Quarter 2008 Results

- Adjusted diluted earnings per share (EPS) of 35 cents versus 30 cents in first quarter 2007

- Reported diluted EPS of 37 cents, compared to 28 cents for the same period last year

- On track to achieve 2008 employee incentive target of $1.27 per share, based on adjusted diluted EPS.

Duke Energy Reports First Quarter 2008 Results

CHARLOTTE, N.C., May 2 /PRNewswire-FirstCall/ -- Duke Energy today reported adjusted diluted earnings per share (EPS) of 35 cents for the first quarter 2008, versus 30 cents for the same period last year.

(Logo: http://www.newscom.com/cgi-bin/prnh/20040414/DUKEENERGYLOGO )

First quarter 2008 results reflect strong contributions from the company's three largest business units -- U.S. Franchised Electric and Gas, Commercial Power and Duke Energy International.

The company reported first quarter 2008 diluted EPS of 37 cents, compared to 28 cents in first quarter 2007.

"Our performance in the first three months of 2008 is a credit to the focus of the management and employees in each business group," said Chairman, President and Chief Executive Officer James E. Rogers. "We continue to make progress in resolving regulatory uncertainties while pursuing major capital projects that ensure we can continue to provide our customers with clean, affordable and reliable electric and gas services.

"Although we've only completed one quarter, we are on track to accomplish our goals, including attaining our 2008 employee incentive target of $1.27 per share on an adjusted diluted basis."

Starting in the first quarter 2008, Duke Energy has begun presenting adjusted earnings, which excludes the impacts of special items and discontinued operations, as well as the mark-to-market impacts of economic hedges in the Commercial Power segment. Prior to the first quarter 2008, Duke Energy presented ongoing earnings, which excluded the impacts of special items and discontinued operations. For comparative purposes, ongoing earnings for prior periods have been revised to present results for all periods on the same adjusted earnings basis.

Special items and mark-to-market impacts of economic hedges in the Commercial Power segment affecting Duke Energy's adjusted diluted EPS for the quarter include:


                                                            1Q2008    1Q2007
     (In millions, except per-share     Pre-Tax     Tax        EPS       EPS
       amounts)                          Amount    Effect   Impact    Impact
     First quarter 2008
      - Mark-to-market impact of
         economic hedges                   $47      $(17)    $0.03        --
      - Costs to achieve Cinergy merger   $(11)       $4    $(0.01)       --

     First quarter 2007
      - Convertible debt costs,
         Spectra Energy spinoff           $(21)       --        --    $(0.02)
      - Mark-to-market impact of
         economic hedges                  $(26)       $9        --    $(0.01)
      - Costs to achieve Cinergy merger   $(11)       $4        --        --
     Total diluted EPS impact                                $0.02    $(0.03)



    Reconciliation of reported to adjusted diluted EPS for the quarter:

                                                              1Q2008   1Q2007
                                                                 EPS      EPS

     Diluted EPS from continuing operations, as reported       $0.37    $0.27
     Diluted EPS from discontinued operations, as reported        --    $0.01
     Diluted EPS, as reported                                  $0.37    $0.28
     Adjustments to reported diluted EPS:
      - Diluted EPS from discontinued operations                  --   $(0.01)
      - Diluted EPS impact of special items and
         mark-to-market in Commercial Power                   $(0.02)   $0.03
     Diluted EPS, adjusted                                     $0.35    $0.30



    BUSINESS UNIT RESULTS (ON A REPORTED BASIS)

U.S. Franchised Electric and Gas (USFE&G)

USFE&G reported first-quarter 2008 segment EBIT from continuing operations of $637 million, compared to $574 million in the first quarter 2007. The EBIT increase over the previous year's quarter was primarily driven by the conclusion in the third quarter of 2007 of North Carolina clean air amortization, the substantial completion of rate credits in 2007 related to the Cinergy merger, favorable weather and higher Allowance for Funds Used During Construction (AFUDC).

These increases were partially offset by lower retail rates resulting from the North Carolina 2007 rate review, a favorable settlement with the Department of Energy that occurred in the first quarter of 2007 related to its obligation to accept and dispose of used nuclear fuel, higher depreciation expense and lower Bulk Power Marketing results, net of sharing.

Commercial Power

Commercial Power reported first-quarter 2008 segment EBIT from continuing operations of $146 million, compared to $13 million in the first quarter 2007.

Commercial Power's improved results for the quarter were due primarily to mark-to-market impacts of economic hedges, lower purchase accounting net expenses, gains on the sale of emission allowances and improved results of the Midwest gas-fired assets.

The contribution was partially offset by higher expenses from increased plant maintenance in the quarter due to plant outages.

Duke Energy International (DEI)

DEI reported first-quarter 2008 segment EBIT from continuing operations of $114 million, compared to $94 million in the first quarter 2007. DEI's improved results were driven primarily by higher margins at National Methanol and favorable foreign exchange rates, partially offset by less favorable hydrology in Latin America.

Crescent Resources

Duke Energy's ownership share of Crescent Resources resulted in $2 million in equity earnings for both the first quarter 2008 and the first quarter 2007. The results for the first quarter 2008 reflect the ongoing challenges in the real estate markets.

Other

Other primarily includes costs associated with corporate governance, costs-to-achieve the Cinergy merger and Duke Energy's captive insurance company.

Other reported a first-quarter 2008 net expense from continuing operations of $78 million, compared to $84 million in the first quarter 2007. The improvement for the quarter was due primarily to $21 million recognized in the first quarter of 2007 related to convertible debt charges associated with the spin-off of Spectra Energy, partially offset by higher captive insurance costs in the first quarter of 2008.

INTEREST EXPENSE

Interest expense from continuing operations was $182 million for the first quarter 2008, compared to $163 million for the first quarter 2007. The increase is primarily due to higher debt balances.

INCOME TAX EXPENSE

Income tax expense from continuing operations for first quarter 2008 was $222 million, compared to $139 million for the first quarter 2007. The increase in tax expense is primarily due to an increase in pre-tax income in 2008 and a lower effective tax rate in the prior year's quarter due to a reduction in the unitary state tax rate as a result of the spin-off of Spectra Energy.

Discontinued Operations

In the first quarter of 2008, Discontinued Operations had after-tax income of $2 million, compared to $20 million in the first quarter 2007. The variance is primarily due to the presentation of the first quarter 2007 synfuel operations as discontinued operations.

NON-GAAP FINANCIAL MEASURES

The primary performance measure used by management to evaluate segment performance is segment EBIT from continuing operations, which at the segment level represents all profits from continuing operations (both operating and nonoperating), including any equity in earnings of unconsolidated affiliates, before deducting interest and taxes, and is net of the minority interest expense related to those profits. Management believes segment EBIT from continuing operations, which is the GAAP measure used to report segment results, is a good indicator of each segment's operating performance as it represents the results of Duke Energy's ownership interests in continuing operations without regard to financing methods or capital structures.

Duke Energy's management uses adjusted diluted EPS, which is a non-GAAP financial measure as it represents diluted EPS from continuing operations, adjusted for the per-share impact of special items and the mark-to-market impacts of economic hedges in the Commercial Power segment, as a measure to evaluate operations of the company.

Special items represent certain charges and credits, which management believes will not be recurring on a regular basis. Mark-to-market adjustments reflect the mark-to-market impact of derivative contracts, which is recognized in GAAP earnings immediately as such derivative contracts do not qualify for hedge accounting, used in Duke Energy's hedging of a portion of the economic value of its generation assets in the Commercial Power segment. The economic value of the generation assets is subject to fluctuations in fair value due to market price volatility of the input and output commodities (e.g. coal, power) and, as such, the economic hedging involves both purchases and sales of those input and output commodities related to the generation assets. Because the operations of the generation assets are accounted for under the accrual method, management believes that excluding the impact of mark-to-market changes of the economic hedge contracts from adjusted earnings until settlement better matches the financial impacts of the hedge contract with the portion of the economic value of the underlying hedged asset. Management believes that the presentation of adjusted diluted EPS provides useful information to investors, as it allows them to more accurately compare the company's performance across periods. Adjusted diluted EPS is also used as a basis for employee incentive bonuses.

The most directly comparable GAAP measure for adjusted diluted EPS is reported diluted EPS from continuing operations, which includes the impact of special items and the mark-to-market impacts of economic hedges in the Commercial Power segment.

Due to the forward-looking nature of adjusted diluted EPS for future periods, information to reconcile such non-GAAP financial measures to the most directly comparable GAAP financial measures is not available at this time, as the company is unable to forecast special items and the mark-to-market impacts of economic hedges in the Commercial Power segment for future periods.

Duke Energy also uses adjusted segment EBIT (including adjusted equity earnings for Crescent Resources) and Other net expenses as a measure of historical and anticipated future segment and other performance. When used for future periods, adjusted segment EBIT and Other net expenses may also include any amounts that may be reported as discontinued operations. Adjusted segment EBIT and Other net expenses are non-GAAP financial measures, as they represent reported segment EBIT and Other net expenses adjusted for special items and the mark-to-market impacts of economic hedges in the Commercial Power segment. Management believes that the presentation of adjusted segment EBIT and Other net expenses provides useful information to investors, as it allows them to more accurately compare a segment's or Other's ongoing performance across periods. The most directly comparable GAAP measure for adjusted segment EBIT or Other net expenses is reported segment EBIT or Other net expenses, which represents segment EBIT and Other net expenses from continuing operations, including any special items and the mark-to-market impacts of economic hedges in the Commercial Power segment. Due to the forward-looking nature of any forecasted adjusted segment EBIT or Other net expenses and any related growth rates for future periods, information to reconcile these non-GAAP financial measures to the most directly comparable GAAP financial measures is not available at this time, as the company is unable to forecast special items, the mark-to-market impacts of economic hedges in the Commercial Power segment, or any amounts that may be reported as discontinued operations for future periods.

Duke Energy, one of the largest electric power companies in the United States, supplies and delivers electricity to approximately 4.0 million U.S. customers in its regulated jurisdictions. The company has approximately 35,000 megawatts of electric generating capacity in the Midwest and the Carolinas, and natural gas distribution services in Ohio and Kentucky. In addition, Duke Energy has more than 4,000 megawatts of electric generation in Latin America, and is a joint-venture partner in a U.S. real estate company.

Headquartered in Charlotte, N.C., Duke Energy is a Fortune 500 company traded on the New York Stock Exchange under the symbol DUK. More information about the company is available on the Internet at: www.duke-energy.com.

An earnings conference call for analysts is scheduled for 10 a.m. ET on Friday, May 2. The conference call can be accessed via the investors' section of Duke Energy's Web site or by dialing 877-719-9788 in the United States or 719-325-4762 outside the United States. The confirmation code is 6990734. Please call in 10 to 15 minutes prior to the scheduled start time. A replay of the conference call will be available until May 12, 2008, by dialing 888-203- 1112 in the United States or 719-457-0820 outside the United States, with a confirmation code of 6990734. A replay and transcript also will be available by accessing the investors' section of the company's Web site.

Forward-looking statement

This release includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements are based on management's beliefs and assumptions. These forward-looking statements are identified by terms and phrases such as "anticipate," "believe," "intend," "estimate," "target," "expect," "continue," "should," "could," "may," "plan," "project," "predict," "will," "potential," "forecast," and similar expressions. Forward- looking statements involve risks and uncertainties that may cause actual results to be materially different from the results predicted. Factors that could cause actual results to differ materially from those indicated in any forward-looking statement include, but are not limited to: State, federal and foreign legislative and regulatory initiatives, including costs of compliance with existing and future environmental requirements; state, federal and foreign legislation and regulatory initiatives that affect cost and investment recovery, or have an impact on rate structures; costs and effects of legal and administrative proceedings, settlements, investigations and claims; industrial, commercial and residential growth in Duke Energy Corporation's (Duke Energy) service territories; additional competition in electric markets and continued industry consolidation; political and regulatory uncertainty in other countries in which Duke Energy conducts business; the influence of weather and other natural phenomena on Duke Energy operations, including the economic, operational and other effects of hurricanes, droughts, ice storms and tornadoes; the timing and extent of changes in commodity prices, interest rates and foreign currency exchange rates; unscheduled generation outages, unusual maintenance or repairs and electric transmission system constraints; the results of financing efforts, including Duke Energy's ability to obtain financing on favorable terms, which can be affected by various factors, including Duke Energy's credit ratings and general economic conditions; declines in the market prices of equity securities and resultant cash funding requirements for Duke Energy's defined benefit pension plans; the level of credit worthiness of counterparties to Duke Energy's transactions; employee workforce factors, including the potential inability to attract and retain key personnel; growth in opportunities for Duke Energy's business units, including the timing and success of efforts to develop domestic and international power and other projects; the performance of electric generation and of projects undertaken by Duke Energy's non-regulated businesses; the effect of accounting pronouncements issued periodically by accounting standard-setting bodies; and the ability to successfully complete merger, acquisition or divestiture plans. In light of these risks, uncertainties and assumptions, the events described in the forward-looking statements might not occur or might occur to a different extent or at a different time than Duke Energy has described. Duke Energy undertakes no obligation to publicly update or revise any forward- looking statements, whether as a result of new information, future events or otherwise.

     MEDIA CONTACT      Tom Williams
     Phone:             980-373-4743
     24-Hour:           704-382-8333

     ANALYST CONTACT    Sean Trauschke
     Phone:             980-373-7905


                                    MARCH 2008
                               QUARTERLY HIGHLIGHTS
                                   (Unaudited)

                                                        Three Months Ended
                                                              March 31,
                                                    --------------------------
    (In millions, except per-share
     amounts and where noted)                         2008               2007
    --------------------------------------------------------------------------
    COMMON STOCK DATA
      Earnings Per Share (from
       continuing operations)
        Basic                                        $0.37              $0.27
        Diluted                                      $0.37              $0.27
      Earnings per Share (from
       discontinued operations)
        Basic                                         $-                $0.01
        Diluted                                       $-                $0.01
      Earnings Per Share
        Basic                                        $0.37              $0.28
        Diluted                                      $0.37              $0.28
      Dividends Per Share                            $0.22              $0.21
      Weighted-Average Shares
       Outstanding
        Basic                                        1,263              1,257
        Diluted                                      1,267              1,268
    --------------------------------------------------------------------------
    INCOME
    Operating Revenues                              $3,337             $3,035
                                                   ========           ========
    Total Reportable Segment EBIT                      899                683
    Other EBIT                                         (78)               (84)
    Interest Expense                                  (182)              (163)
    Interest Income and Other (a)                       46                 40
    Income Tax Expense from Continuing
     Operations                                       (222)              (139)
    Income from Discontinued Operations,
     net of tax                                          2                 20
                                                   --------           --------
    Net Income                                        $465               $357
                                                   ========           ========
    --------------------------------------------------------------------------
    CAPITALIZATION
    Total Common Equity                                64%                64%
    Minority Interests                                  0%                 0%
    Total Debt                                         36%                36%
    --------------------------------------------------------------------------
    Total Debt                                     $12,102            $11,538
    Book Value Per Share                            $16.94             $16.39
    Actual Shares Outstanding                        1,264              1,259
    --------------------------------------------------------------------------
    CAPITAL AND INVESTMENT EXPENDITURES
      U.S. Franchised Electric and Gas                $875               $668
      Commercial Power                                 114                 90
      International Energy                              56                 11
      Other                                             44                 40
                                                   --------           --------
    Total Capital and Investment
     Expenditures                                   $1,089               $809
                                                   ========           ========
    --------------------------------------------------------------------------
    EBIT BY BUSINESS SEGMENT
      U.S. Franchised Electric and Gas                $637               $574
      Commercial Power                                 146                 13
      International Energy                             114                 94
      Crescent                                           2                  2
                                                   --------           --------
    Total Reportable Segment EBIT                      899                683
      Other EBIT                                       (78)               (84)
      Interest Expense                                (182)              (163)
      Interest Income and Other (a)                     46                 40
                                                   --------           --------
    Consolidated Income From Continuing
     Operations Before Income Taxes                   $685               $476
                                                   ========           ========
    --------------------------------------------------------------------------

    (a) Other within Interest Income and Other includes foreign currency
        transaction gains and losses and additional minority interest not
        allocated to the segment results.

    Note:  Certain 2007 amounts have been recast due to the reclassification
    of Synfuel operations to discontinued operations.



                                    MARCH 2008
                               QUARTERLY HIGHLIGHTS
                                   (Unaudited)

                                                         Three Months Ended
                                                              March 31,
                                                    --------------------------
    (In millions, except where noted)                  2008              2007
    --------------------------------------------------------------------------
    U.S. FRANCHISED ELECTRIC AND GAS
      Operating Revenues                             $2,601            $2,399
      Operating Expenses                              1,999             1,835
      Gains (Losses) on Sales of Other
       Assets and Other, net                              3                 -
      Other Income and Expenses, net                     32                10
                                                    --------          --------
      EBIT                                             $637              $574
                                                    --------          --------
      Depreciation and Amortization                    $332              $361

      Duke Energy Carolinas GWh sales                22,055            21,542
      Duke Energy Midwest GWh sales                  16,276            16,412
      Net Proportional MW Capacity in
       Operation                                     27,333            27,590
    --------------------------------------------------------------------------
    COMMERCIAL POWER (a)
      Operating Revenues                               $450              $380
      Operating Expenses                                323               362
      Gains (Losses) on Sales of Other
       Assets and Other, net                             14               (11)
      Other Income and Expenses, net                      5                 6
                                                    --------          --------
      EBIT                                             $146               $13
                                                    --------          --------
      Depreciation and Amortization                     $43               $41

      Actual Plant Production, GWh                    5,919             5,871
      Net Proportional MW Capacity in
       Operation                                      7,550             8,100
    --------------------------------------------------------------------------
    INTERNATIONAL ENERGY
      Operating Revenues                               $289              $245
      Operating Expenses                                212               165
      Other Income and Expenses, net                     42                19
      Minority Interest Expense                           5                 5
                                                    --------          --------
      EBIT                                             $114               $94
                                                    --------          --------
      Depreciation and Amortization                     $21               $18

      Sales, GWh                                      4,244             4,654
      Proportional MW Capacity in
       Operation                                      4,005             3,945
    --------------------------------------------------------------------------
    CRESCENT
      Equity in Earnings of Unconsolidated
       Affiliates                                        $2                $2
                                                    --------          --------
      EBIT                                               $2                $2
                                                    --------          --------

    --------------------------------------------------------------------------
    OTHER
      Operating Revenues                                $21               $36
      Operating Expenses                                 94               100
      Gains (Losses) on Sales of Other
       Assets and Other, net                              1                 -
      Other Income and Expenses, net                     (7)              (21)
      Minority Interest Benefit                          (1)               (1)
                                                    --------          --------
      EBIT                                             $(78)             $(84)
                                                    --------          --------
      Depreciation and Amortization                     $17               $13
    --------------------------------------------------------------------------

    (a) Excludes the results of Synfuel operations, which have been
        reclassified to discontinued operations for the three months ended
        March 31, 2007.



                           DUKE ENERGY CORPORATION
               CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                                 (Unaudited)
                   (In millions, except per-share amounts)

                                                        Three Months Ended
                                                             March 31,
                                                     -------------------------
                                                       2008             2007
    --------------------------------------------------------------------------
    Operating Revenues                                $3,337           $3,035
    Operating Expenses                                 2,604            2,436
    Gains (Losses) on Sales of Other Assets
     and Other, net                                       18              (11)
    --------------------------------------------------------------------------
    Operating Income                                     751              588
    --------------------------------------------------------------------------
    Other Income and Expenses                            117               53

    Interest Expense                                     182              163
    Minority Interest Expense                              1                2
    --------------------------------------------------------------------------
    Income From Continuing Operations Before
     Income Taxes                                        685              476
    Income Tax Expense from Continuing
     Operations                                          222              139
    --------------------------------------------------------------------------
    Income From Continuing Operations                    463              337
    Income From Discontinued Operations, net
     of tax                                                2               20
    --------------------------------------------------------------------------
    Net Income                                          $465             $357
    ==========================================================================

    Common Stock Data
    Weighted-average shares outstanding
         Basic                                         1,263            1,257
         Diluted                                       1,267            1,268
    Earnings per share (from continuing
     operations)
         Basic                                         $0.37            $0.27
         Diluted                                       $0.37            $0.27
    Earnings per share (from discontinued
     operations)
         Basic                                          $-              $0.01
         Diluted                                        $-              $0.01
    Earnings per share
         Basic                                         $0.37            $0.28
         Diluted                                       $0.37            $0.28
    Dividends per share                                $0.22            $0.21



                           DUKE ENERGY CORPORATION
                    CONDENSED CONSOLIDATED BALANCE SHEETS
                                 (Unaudited)
                                (In millions)

                                                 March 31,        December 31,
                                                    2008              2007
                                               -------------     -------------
    ASSETS

    Current Assets                                  $4,207            $4,916
    Investments and Other Assets                    11,200            11,199
    Net Property, Plant and Equipment               31,692            31,110
    Regulatory Assets and Deferred Debits            2,548             2,461
                                               -------------     -------------
      Total Assets                                 $49,647           $49,686
                                               =============     =============
    LIABILITIES AND COMMON STOCKHOLDERS'
     EQUITY

    Current Liabilities                             $4,931            $5,698
    Long-term Debt                                  10,083             9,498
    Deferred Credits and Other
     Liabilities                                    13,039            13,110
    Minority Interests                                 185               181
    Common Stockholders' Equity                     21,409            21,199
                                               -------------     -------------
      Total Liabilities and Common
       Stockholders' Equity                        $49,647           $49,686
                                               =============     =============



                             DUKE ENERGY CORPORATION
                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (Unaudited)
                                  (In millions)
                                                        Three Months Ended
                                                              March 31,
                                                     ------------------------
                                                       2008             2007
                                                     ----------     ---------

    CASH FLOWS FROM OPERATING ACTIVITIES
      Net income                                       $465             $357
      Adjustments to reconcile net income
       to net cash provided by
       operating activities                             558              559
                                                     ----------     ---------
             Net cash provided by
              operating activities                    1,023              916
                                                     ----------     ---------
    CASH FLOWS FROM INVESTING ACTIVITIES
             Net cash used in investing
              activities                             (1,075)            (594)
                                                     ----------     ---------
    CASH FLOWS FROM FINANCING ACTIVITIES
             Net cash provided by (used
              in) financing activities                   16             (700)
                                                     ----------     ---------

      Net decrease in cash and cash
       equivalents                                      (36)            (378)
      Cash and cash equivalents at
       beginning of period                              678              948
                                                     ----------     ---------
      Cash and cash equivalents at end of
       period                                          $642             $570
                                                     ==========     =========



                              Duke Energy Carolinas
                               Quarterly Highlights
                   Supplemental Franchised Electric Information

                                                    Three Months Ended
                                                         March 31,
                                            ----------------------------------
                                                                        %
                                                 2008      2007(1)  Inc.(Dec.)
                                            -----------  ---------  ----------
    GWH Sales
        Residential                              7,499       7,342      2.1%
        General Service                          6,449       6,344      1.7%

        Industrial - Textile                     1,112       1,243    (10.5%)
        Industrial - Other                       4,375       4,341      0.8%
                                            -----------  ---------  ----------
          Total Industrial                       5,487       5,584     (1.7%)


        Other Energy Sales                          71          70      2.1%
        Regular Resale                             425         393      8.1%
                                            -----------  ---------  ----------
            Total Regular Sales Billed          19,931      19,733      1.0%

        Special Sales                            2,524       2,101     20.1%
                                            -----------  ---------  ----------
              Total Electric Sales              22,455      21,834      2.8%

        Unbilled Sales                            (400)       (292)   (36.8%)
                                            -----------  ---------  ----------
          Total Consolidated Electric
           Sales - Carolinas                    22,055      21,542      2.4%

    Average Number of Customers
        Residential                          2,004,488   1,967,248      1.9%
        General Service                        330,482     326,391      1.3%

        Industrial - Textile                       679         739     (8.1%)
        Industrial - Other                       6,559       6,562     (0.0%)
                                            -----------  ---------  ----------
          Total Industrial                       7,238       7,301     (0.9%)


        Other Energy Sales                      13,580      13,359      1.7%
        Regular Resale                              21          21      0.0%
                                            -----------  ---------  ----------
          Total Regular Sales                2,355,809   2,314,320      1.8%

        Special Sales                               42          34     23.5%
                                            -----------  ---------  ----------
        Total Avg Number of Customers -
         Carolinas                           2,355,851   2,314,354      1.8%
                                            ===========  =========  ==========


    (1) Amounts for prior periods have been recast to eliminate separate
        presentation of Nantahala amounts following the elimination of
        separate rates for Nantahala customers effective January 1, 2008.


    Heating and Cooling Degree Days
        Actual
        Heating Degree Days                      1,679       1,599      5.0%
        Cooling Degree Days                          2          30    (95.0%)

        Variance from Normal
        Heating Degree Days                      (0.6%)      (8.0%)     n/a
        Cooling Degree Days                     (62.5%)     651.0%      n/a



                              Duke Energy - Midwest
                               Quarterly Highlights
                   Supplemental Franchised Electric Information

                                                    Three Months Ended
                                                         March 31,
                                            ----------------------------------
                                                                       %
                                                2008        2007    Inc.(Dec.)
                                            -----------  ---------  ----------

    GWH Sales
      Residential                              5,502         5,347      2.9%
      General Service                          4,552         4,371      4.1%
      Industrial                               4,287         4,380     (2.1%)

      Other Energy Sales                          44            44      0.0%
                                            -----------  ---------  ----------
          Total Regular Electric Sales
           Billed                             14,385        14,142      1.7%

      Special Sales                            2,180         2,632    (17.2%)
                                            -----------  ---------  ----------
            Total Electric Sales Billed -
             Midwest                          16,565        16,774     (1.2%)

      Unbilled Sales                            (289)         (362)    20.2%
                                            -----------  ---------  ----------
        Total Electric Sales - Midwest        16,276        16,412     (0.8%)



    Average Number of Customers
      Residential                          1,412,465     1,404,132      0.6%
      General Service                        184,834       183,045      1.0%
      Industrial                               5,618         5,673     (1.0%)

      Other Energy                             3,951         3,719      6.2%
                                            -----------  ---------  ----------
        Total Regular Sales                1,606,868     1,596,569      0.6%
                                            ===========  =========  ==========


      Special Sales                               38            26     46.2%
                                            -----------  ---------  ----------

      Total Avg Number Electric Customers
       - Midwest                           1,606,906     1,596,595      0.6%
                                            ===========  =========  ==========



    Heating and Cooling Degree Days*
      Actual
      Heating Degree Days                      2,285         2,171      5.3%
      Cooling Degree Days                        -              15   (100.0%)

      Variance from Normal
      Heating Degree Days                      10.0%          5.5%      n/a
      Cooling Degree Days                    (100.0%)       400.0%      n/a


    * Reflects HDD and CDD for Duke Energy - Indiana, Duke Energy - Ohio and
    Duke Energy - Kentucky




                           DUKE ENERGY CORPORATION
                 ADJUSTED TO REPORTED EARNINGS RECONCILIATION
                           March 2007 Year-to-date
               (Dollars in millions, except per-share amounts)

                                   Special Items
                                     (Note 1)
                                    ----------
                          Convertible
                              Debt  Costs to  Economic Discon-
                             Costs,  Achieve, Hedges   tinued  Total
                 Adjusted     Gas    Cinergy (Mark-to-  Oper- Adjust- Reported
                 Earnings  Spin-off   Merger  Market)* ations  ments  Earnings
                 --------  --------- -------- -------- ------ ------- --------
    SEGMENT EARNINGS
     BEFORE INTEREST
     AND TAXES FROM
     CONTINUING
     OPERATIONS
    U.S. Franchised
     Electric and
     Gas            $574      $-       $-       $-        $-      $-     $574

    Commercial
     Power            39       -        -      (26)D       -     (26)      13

    International
     Energy           94       -        -        -         -       -       94

    Crescent           2       -        -        -         -       -        2
                --------  --------- -------- -------- ------- ------- --------
      Total
       reportable
       segment
       EBIT          709       -        -      (26)        -     (26)     683

    Other            (52)    (21)C    (11)A      -         -     (32)     (84)
                --------  --------- -------- -------- ------- ------- --------
      Total
       reportable
       segment
       EBIT
       and other
       EBIT         $657    $(21)    $(11)    $(26)       $-    $(58)    $599

    Interest
     Expense        (163)      -        -        -         -       -     (163)
    Interest Income
     and Other        40       -        -        -         -       -       40
    Income Taxes
     from Continuing
     Operations     (152)      -        4        9         -      13     (139)
    Discontinued
     Operations,
     net of taxes      -       -        -        -        20 B    20       20
                --------  --------- -------- -------- ------- ------- --------
    Net Income      $382    $(21)     $(7)    $(17)      $20    $(25)    $357
                ========  ========= ======== ======== ======= ======= ========
    EARNINGS PER
     SHARE, BASIC  $0.30  $(0.02)      $-   $(0.01)    $0.01  $(0.02)   $0.28
                ========  ========= ======== ======== ======= ======= ========
    EARNINGS PER
     SHARE,
     DILUTED       $0.30  $(0.02)      $-   $(0.01)    $0.01  $(0.02)   $0.28
                ========  ========= ======== ======== ======= ======= ========

    Note 1 - Amounts for special items are presented net of any related
             minority interest.

    A - Recorded in Operation, maintenance and other (Operating Expenses) on
        the Consolidated Statements of Operations.

    B - Recorded in Income from Discontinued Operations, net of tax on the
        Consolidated Statements of Operations.

    C - Recorded in Other income and expenses, net (Other Income and Expenses,
        net) on the Consolidated Statements of Operations.

    D - $44 million loss recorded within Non-regulated electric, natural gas,
        and other (Operating Revenues) and $18 million gain recorded within
        Fuel used in electric generation and purchased power (Operating
        Expenses) on the Consolidated Statements of Operations.

    Weighted Average Shares (reported and adjusted) - in millions

                     Basic         1,257

                     Diluted       1,268


    * Represents the mark-to-market impact of derivative contracts, which is
      recognized in earnings immediately as such derivative contracts do not
      qualify for hedge accounting, used in Duke Energy's hedging of a portion
      of the economic value of its generation assets in the Commercial Power
      segment. The economic value of the generation assets is subject to
      fluctuations in fair value due to market price volatility of the input
      and output commodities (e.g. coal, power) and, as such, the economic
      hedging involves both purchases and sales of those input and output
      commodities related to the generation assets. Because the operations of
      the generation assets are accounted for under the accrual method,
      management believes that excluding the impact of mark-to-market changes
      of the economic hedge contracts from adjusted earnings until settlement
      better matches the financial impacts of the hedge contract with the
      portion of the economic value of the underlying hedged asset. Management
      believes that the presentation of adjusted diluted EPS provides useful
      information to investors, as it allows them to more accurately compare
      the company's performance across periods.



                           DUKE ENERGY CORPORATION
                 ADJUSTED TO REPORTED EARNINGS RECONCILIATION
                           March 2008 Year-to-Date
               (Dollars in millions, except per-share amounts)

                           Special Items
                              (Note 1)
                              ---------
                              Costs to  Economic
                              Achieve,   Hedges     Discon-   Total
                     Adjusted  Cinergy  (Mark-to-   tinued   Adjust-  Reported
                     Earnings  Merger    Market)*  Operations ments   Earnings
                     -------- --------- ---------  --------- -------  --------
    SEGMENT EARNINGS
     BEFORE INTEREST
     AND TAXES FROM
     CONTINUING
     OPERATIONS

    U.S. Franchised
     Electric and
     Gas                $637      $-        $-        $-       $-      $637

    Commercial Power      99       -        47 B       -       47       146

    International
     Energy              114       -         -         -        -       114

    Crescent               2       -         -         -        -         2
                     -------- --------- ---------  --------- -------  --------
      Total reportable
       segment EBIT      852       -        47         -       47       899

    Other                (67)    (11)A       -         -      (11)      (78)
                     -------- --------- ---------  --------- -------  --------
      Total reportable
       segment and
       Other EBIT       $785    $(11)      $47        $-      $36      $821

    Interest Expense    (182)      -         -         -        -      (182)
    Interest Income
     and Other            46       -         -         -        -        46
    Income Taxes from
     Continuing
     Operations         (209)      4       (17)        -      (13)     (222)
    Discontinued
     Operations,
     net of taxes          -       -         -         2 C      2         2
                     -------- --------- ---------  --------- -------  --------
    Net Income          $440     $(7)      $30        $2      $25      $465
                     ======== ========= =========  ========= =======  ========
    EARNINGS PER
     SHARE, BASIC      $0.35  $(0.01)    $0.03        $-    $0.02     $0.37
                     ======== ========= =========  ========= =======  ========
    EARNINGS PER
     SHARE, DILUTED    $0.35  $(0.01)    $0.03        $-    $0.02     $0.37
                     ======== ========= =========  ========= =======  ========

    Note 1 - Amounts for special items are presented net of any related
             minority interest.

    A - Recorded in Operation, maintenance and other (Operating Expenses) on
        the Consolidated Statements of Operations.

    B - $7 million loss recorded within Non-regulated electric, natural gas,
        and other (Operating Revenues) and $54 million gain recorded within
        Fuel used in electric generation and purchased power (Operating
        Expenses) on the Consolidated Statements of Operations.

    C - Recorded in Income From Discontinued Operations, net of tax on the
        Consolidated Statements of Operations.

    Weighted Average Shares (reported and adjusted) - in millions

                     Basic          1,263

                     Diluted        1,267

    * Represents the mark-to-market impact of derivative contracts, which is
      recognized in earnings immediately as such derivative contracts do not
      qualify for hedge accounting, used in Duke Energy's hedging of a portion
      of the economic value of its generation assets in the Commercial Power
      segment. The economic value of the generation assets is subject to
      fluctuations in fair value due to market price volatility of the input
      and output commodities (e.g. coal, power) and, as such, the economic
      hedging involves both purchases and sales of those input and output
      commodities related to the generation assets. Because the operations of
      the generation assets are accounted for under the accrual method,
      management believes that excluding the impact of mark-to- market changes
      of the economic hedge contracts from adjusted earnings until settlement
      better matches the financial impacts of the hedge contract with the
      portion of the economic value of the underlying hedged asset. Management
      believes that the presentation of adjusted diluted EPS provides useful
      information to investors, as it allows them to more accurately compare
      the company's performance across periods.

Company News On-Call: http://www.prnewswire.com/comp/257451.html/

Website: http://www.duke-energy.com//




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