1

2Q10

Resultados

Operacionais

e Financeiros

1T08

Operating and Financial

Results

2Q10

August 12, 2010

2

2Q10

► Highlights

► Operating Results

Agenda

► Introduction

► Financial Results

► Redentor

3

2Q10

► Highlights

► Operating Results

Agenda

► Financial Results

► Redentor

► Introduction

4

2Q10

Introduction

Presentation of Operating and Financial Information

► The financial information contained herein is presented in consolidated figures, pursuant to Brazilian Corporate Law, based on revised financial information. The consolidated financial information represents: i) 100% of CEMAR’s results, excluding 34.86% related to minority interests, ii) 25% of Geramar’s results and iii) 100% of Equatorial Soluções Results. In view of Equatorial’s partial spin-off, as from this quarter, we no longer consolidate Light’s figures.

► The operating information presented herein consolidates 100% of CEMAR’s results and 25% of Geramar’s results. Since this quarter, we are no longer consolidating Light’s operating results.

► In order to facilitate comparisons between quarters and semesters, the operating and financial information of 2Q09, 1Q10, 1S09 and 1S10 is pro forma, so that the interest held by Equatorial in RME is not being considered.

► The following information was not reviewed by the independent auditors: i) non-financial information relating to CEMAR, Light and the PLPT (Programa Luz para Todos - Light for All Program); ii) pro forma information and its comparison with the results presented in the period; and iii) management expectations regarding the future performance of the Companies.

5

2Q10

► Highlights

► Operating Results

Agenda

► Introduction

► Financial Results

► Redentor

6

2Q10

Operating Highlights

► Starting this quarter, due to Equatorial’s partial spin-off, we are no longer consolidating Light’sfinancial and operating results.

► CEMAR’s total energy volume amounted to 1,020 GWh in 2Q10, 29.0% greater than in 2Q09.

► CEMAR’s last-12-month energy losses totaled 22.2% of required energy by the end of 2Q10, 5.9 p.p.less than in 2Q09.

► CEMAR’s last-12-month 2Q10 DEC index improved 12.2%, dropping to 23.0 hours, while last-12-monthFEC index improved 5.7%, to 15.0 times, in comparison with 2Q09.

► On August 09, 2010, Redentor Energia, a company resulting from Equatorial Energia’s spin-off,received the authorization to be registered as publicly-traded company by the Brazilian Securities andExchange Commission (CVM). We note that the shares issued by Equatorial, EQTL3, are still traded“cum rights” to the spin-off until the conclusion of the process of listing and admission of trading ofRedentor shares in the Novo Mercado segment.

7

2Q10

► Net operating revenues (NOR) reached R$315.8 million in 2Q10, 20.3% up over 2Q09.

► 2Q10 EBITDA reached R$113.4 million, up by 22.5% over 2Q09 adjusted EBITDA.

► Net income came to R$44.1 million in 2Q10, reflecting a 30.5% increase over 2Q09 adjustedNet income.

► In 2Q10, Equatorial’s consolidated investments totaled R$96.5 million, 20.0% lower incomparison with 2Q09. CEMAR’s investments (excluding direct investments in the PLPTprogram) totaled R$43.4 million in 2Q10. PLPT investments reached R$45.7 million.

Financial Highlights

8

2Q10

► Highlights

► Operating Results

Agenda

► Introduction

► Financial Results

► Redentor

9

2Q10

► CEMAR: 2Q10 energy sales moved up by 29.0%, reaching 1,020 GWh.

CEMAR – Electricity Market

Electricity Consumption per Segment (GWh)

Energy Balance (GWh)

ENERGY BALANCE (GWh) 2Q09 1Q10 2Q10 Chg. 1S09 1S10 Chg.

Required Energy 1,119 1,240 1,286 14.8% 2,235 2,526 13.0%

Sales (*) 793 960 1,022 29.0% 1,611 1,982 23.1%

Losses 327 280 264 -19.4% 624 544 -12.8%

(*) Includes sales to the market, own consumption and sales to CEPISA.

CONSUMPTION CLASS (GWh) 2Q09 1Q10 2Q10 Chg. 1S09 1S10 Chg.

Residential 363.7 449.4 474.6 30.5% 746.7 924.0 23.7%

Industrial 80.7 97.3 105.6 30.9% 171.2 202.9 18.5%

Commercial 160.4 190.4 200.5 25.0% 321.7 390.9 21.5%

Others 186.6 222.8 239.9 28.6% 368.3 462.7 25.6%

TOTAL 791.2 959.9 1,020.5 29.0% 1,608.0 1,980.4 23.2%

10

2Q10

Distribution – Energy Losses in CEMAR

Non-technical Losses over Low-Voltage Market

(last 12 months)

30.4%29.0%

30.6%29.9% 30.0%

28.7%27.3%

19.8%23.7%

21.5%

15.9%

4Q07 1Q08 2Q08 3Q08 4Q08 1Q09 2Q09 3Q09 4Q09 1Q10 2Q10

Non-technical Losses

24.2%

Regulatory Target

(from Aug-09 until Jul-10)

Total Losses over Required Energy

(last 12 months)

28.7%28.1%

28.9% 28.6% 28.9%28.5% 28.1%

26.4%

24.2%

22.2%

25.2%

4Q07 1Q08 2Q08 3Q08 4Q08 1Q09 2Q09 3Q09 4Q09 1Q10 2Q10

Total Losses

25.6%

Regulatory Target

(from Aug-09 until Jul-10)

11

2Q10

DEC (hours) FEC (times)

Distribution – DEC and FEC (Last 12 months)

► CEMAR: The DEC index improved 12.2% compared with 2Q09 and the FEC index improved 5.7% in the same period.

23.0

26.2

2Q09 2Q10

-12.2%

15.9 15.0

2Q09 2Q10

-5.7%

12

2Q10

► Highlights

► Operating Results

Agenda

► Introduction

► Financial Results

► Redentor

13

2Q10

Consolidated Performance

Net Operating Revenues* EBITDA*

Net Income*

*Only operating companies are being considered in these graphs.

93.0%100.0%

1.8%

5.2%

2T09 2T10

CEM AR EQTL Soluções Geramar

21.7%93.2

113.4

96.2%100.0%

0.9%

2.9%

2T09 2T10

CEM AR EQTL Soluções Geramar

20.3%

262.6

315.8

93.8%99.7%

0.3%

3.6%

2.6%

2T09 2T10

CEM AR EQTL Soluções Geramar

-19.1%54.5

44.1

14

2Q10

Pro-forma EBITDA

Pro-forma EBITDA

► BT Security: R$0.6 million recognized in NOR, arising from the principal amount of the collateral offered by CEMAR to takeout a loan with the Brazilian Treasury in prior years

► Like in 1Q10, 2Q10 EBITDA was also negatively affected by the R$10.6 million amortization of the Low Income Subsidy to theextent this asset was already recognized in 3Q09’s result when it was defined as a Financial Component of CEMAR’s PeriodicTariff Review. If the previous accounting rule were applied in 2Q10, its EBITDA would be R$124.1 million, which represents a34.0% increase over 2Q09 (instead of the 22.5% increase reported above).

93.2 92.6

113.4

0.6

2Q09 EBITDA BT Security 2Q09 Adjusted

EBITDA

2Q10 EBITDA

22.5%

15

2Q10

CEMAR’s EBITDA: Low Income Subsidy Accounting

CEMAR’s EBITDA Evolution

* Hypothetical example of 3Q10 EBITDA’s behavior. It does not represent a value forecast.

► We highlight the change in accounting standards related to the Low Income Asset occurred in the Tariff Revision of August, 2009. Thoughtreated as a Financial Component in the review process, said grant will be determined and granted to the company in each annualreadjustment, always in August, and shall be effective for the subsequent 12 months being monthly amortized.

► Always in the 3Q of each year, the amount granted by ANEEL relating to the Low Income Subsidy will be booked in CEMAR’s EBITDA. In allother quarters, this value will be amortized meaning a reduction of EBITDA under the new accounting standards.

10796 130 10789

105

32

-7

-10

-10

-11

1Q09 2Q09 3Q09 4Q09 1Q10 2Q10 3Q10*

Reported EBITDA Asset Constitution Asset Amortization

16

2Q10

Consolidated Performance

Adjusted Net Income

► BT Security: In 2Q09, the subsidiary CEMAR recorded R$2.9 million due to monetary corrections and exchange level variations of acollateral used as a guarantee for operations with the Brazilian Treasury in past quarters.

► CEMAR’s 2Q09 net income was extraordinarily affected by the recognition of a positive adjustment of R$17.8 million of Deferred TaxAssets related to fiscal losses, negative bases and temporary differences of past quarters.

► Like in 1Q10, 2Q10 Net Income was also negatively affected by R$6.3 million related to the amortization of the Low Income Subsidy to theextent this asset was already recognized in 3Q09’s result when it was defined as a Financial Component of CEMAR’s Periodic Tariff Review.If the previous accounting rule were applied in 2Q10, its Net Income would be R$50.4 million, which represents a 49.1% increase over 2Q09(instead of the 30.5% increase reported above).

54.544.1

17.8

33.8

2.9

2Q09 Net

Income

BT Security Fiscal Asset Adjusted 2Q09

Net Income

2Q10 Net

Income

30.5%

17

2Q10

Debt: Schedule of Gross Debt Maturities

Consolidated Gross Debt

(100% CEMAR + 25% Geramar)

188.7

170.6

282.9

106.5

375.2

--

-

-

63.3

1,187.2

43.5

65.2108.7

Gross Debt Short Term 2011 2012 2013 2014 After 2014

CEMAR

Geramar

18

2Q10

100% CEMAR + 25% Geramar

Net Debt - Consolidated

Net Debt (R$MM)(*) and Net Debt/ EBITDA

(Last 12 months)

Net Debt Reconciliation (R$MM)

775.7857.9

754.3768.7804.7

1.7

1.9

1.7 1.7

2.1

2Q09 3Q09 4Q09 1Q10 2Q10

490.8

775.7

1,295.9

29.4

Debt Regulatory

Assets

Cash and

Equivalents

Net Debt

19

2Q10

Net Debt (R$MM)(*) and Net Debt/ EBITDA

(Last 12 months)

Net Debt Reconciliation (R$MM)

Net Debt – Pro-Rata

65.12% CEMAR + 25% Geramar

519.6 500.7 494.7542.0

512.7

1.92.0

1.71.71.7

2Q09 3Q09 4Q09 1Q10 2Q10

350.0

512.7

881.8

19.1

Debt Regulatory

Assets

Cash and

Equivalents

Net Debt

20

2Q10

► CEMAR: In the 2Q10, total capex reached R$89.1 million, of which R$43.4 million are own capex and R$45.7 million regarding the Light for All Program (PLPT).

► Geramar invested R$7.4 million in the final steps of its plants’ construction.

Capex - Equatorial

INVESTMENTS (R$MM) 2Q09 1Q10 2Q10 Chg. 1H09 1H10 Chg.

CEMAR

Own (*) 70.1 38.3 43.4 -38.1% 113.3 81.7 -27.9%

PLPT 28.6 33.1 45.7 59.7% 64.4 78.8 22.3%

Total 98.7 71.4 89.1 -9.8% 177.7 160.5 -9.7%

Geramar

Generation 21.9 6.3 7.4 -66.3% 29.7 13.7 -54.1%

TOTAL EQUATORIAL 120.6 77.6 96.5 -20.0% 207.4 174.1 -16.1%

(*) Includes indirect PLPT investments.

21

2Q10

► Highlights

► Operating Results

Agenda

► Introduction

► Financial Results

► Redentor

22

2Q10

Spin-off

► Since Equatorial’s partial spin-off approved by the Annual and Extraordinary General Meeting, held on04/29/2010, the company’s corporate structure is as presented below:

Equatorial

Energia S.A.

Equatorial

SoluçõesGeramarCEMAR

RME

Rio Minas Energia

Light S.A.

65.1%100%

13.03%

25%

Redentor

Energia S.A.

PCP

100%

Minorities54.1% 45.9%

23

2Q10

Eduardo Haiama

CFO and IRO

Thomas Newlands

Investor Relations

Telephone 1: +0 55 (21) 3206-6635

Telephone 2: +0 55 (21) 3217-6607

Email: ir@equatorialenergia.com.br

Website: http://www.equatorialenergia.com.br/ir

Contacts

24

2Q10

• This presentation may contain forward-looking statements, which are subject to risks and uncertainties, as they were based on the

expectations of Company’s management and on available information. These prospects include statements concerning the Company’s

current intentions or expectations for our clients; this presentation will also be available at our website www.equatorialenergia.com.br/ir and

in the IPE system of the Brazilian Securities and Exchange Commission (CVM).

• Forward-looking statements refer to future events which may or may not occur. Our future financial situation, operating results, market share

and competitive positioning may differ substantially from those expressed or suggested by said forward-looking statements. Many factors

and values that can establish these results are outside Company’s control or expectation. The reader/investor is advised not to completely

rely on the information above.

• The words “believe", “can", “predict", “estimate", “continue", “anticipate", “intend", “forecast" and similar words, are intended to identify

estimates, which refer only to the date on which they were expressed. Hence, the Company has no obligation to update said statements.

• This presentation does not constitute any offering, invitation or request of subscription offer or purchase of any marketable securities. And,

this statement or any other information herein, does not constitute the basis for any contract or commitment of any kind.

Disclaimer