Conference Call

2nd Quarter 2013

Highlights

2.6% increase in Net Revenue (without construction revenue) reaching R$ 1,670.9 million in the 2Q13;

EBITDA of R$ 277.9 million in 2Q13, 8.9% up, as a consequence of the higher participation of the generation activity. Adjusted by the regulatory assets (CVA), it reaches R$ 397.2 million, 20.1% above 2Q12.

Net Income of R$ 58.2 million in the quarter, an increase of 46.2% over 2Q12. Adjusted by CVA. it reaches R$ 136.9 million, 52.5% above 2Q12.

Net Debt of R$ 4.056.1 million with a multiple for covenants at 2.62x.

RESULTS

Consumption grew 2.5% compared to 2Q12, mainly driven by the commercial and industrial segments whch increased by 5.1% and 4.1%, respectively;

Collection rate for the first quarter reached 104.2%. 30 bps above the 2Q12;

Non-technical losses (LTM) of 44.2%, 70 bps down on march/2013;

In 1H13, investments amounted R$ 326.7 million, of this total, R$ 272.8 million went to the distribution segment.

OPERATIONAL

Aneel announced the preliminary proposal of Light SESA’s Tariff Revision, and the details will be discussed in a Public Hearing, with an on-site meeting in the city of Rio de Janeiro, in September, 13.

REGULATORY

Industrial6%

Residencial33%

Comercial30%

Outros Cativos15%

Livre16%

2T10 2T11 2T12 2T13

Energy Consumption Distribution – Quarter

+2.5%

5,7545,669

23.5ºC

23.2ºC

2Q122Q11

5,4605,897

2Q10

22.7ºC22.7ºC

+2.6%

2Q13

1Note: To preserve comparability in the market approved by Aneel in the tariff adjustment process. the billed energy of the free customers: Valesul, CSN and CSA were excluded in view of these customers’ planned migration to the Basic Network.

TOTAL MARKET (GWh) ¹

Industrial5.8%

Free16.0%

Others15.1%

Commercial29.6%

Residential33.4%

2T10 2T11 2T12 2T13

1S10 1S11 1S12 1S13

23,0

23,5

24,0

24,5

25,0

25,5

26,0

26,5

27,0

27,5

28,0

1S10 1S11 1S12 1S13

1S10

1S11

1S12

1S13

Energy Consumption Distribution – Half

+3.1%

11,934

11,960

25.2ºC

25.1ºC

1S121S11

11,585

12,303

1S10

25.1ºC

25.5ºC

+2.0%

1S13

1Note: To preserve comparability in the market approved by Aneel in the tariff adjustment process. the billed energy of the free customers: Valesul, CSN and CSA were excluded in view of these customers’ planned migration to the Basic Network.

TOTAL MARKET (GWh) ¹

Industrial5.7%

Free14.4%

Others14.7%

Commercial29.5% Residential

35.7%

With the consumption no longer billed by the change in criteria. the total energy consumption increase in the concession area would be 3.4% over 2Q12.

Industrial6%

Residencial36%

Comercial29%

Outros Cativos15%

Livre14%

2T12 2T132T12 2T13 2T12 2T13 2T12 2T13 2T12 2T13

Total Market

RESIDENTIAL INDUSTRIALCOMMERCIAL OTHERS TOTAL

2Q12 2Q13

ELECTRICITY CONSUMPTION (GWh)

TOTAL MARKET – QUARTER

2Q12 2Q13 2Q12 2Q13 2Q12 2Q13 2Q12 2Q13

FREECAPTIVE

+2.5%

+5.1%

+0.1%

+0.6%

889 893

937

48 49

942

1,867

182215

1,962

373 342

980

607 678

1.021

1,969 1,972

1,685 1,748

4,9164,954

5,754

837 942

5,897

+4.1%

1S12 1S131S12 1S13 1S12 1S13 1S12 1S13 1S12 1S13

+3.1%

10,29510,52

6

11,934

1,639 1,777

12,303

+2.2%

1,771 1,806

1,868

98 103

1,909

+6.5%

3,808

374430

4,055

774 701

1,941

1,167

1,244

1,945

+1.8%

4,317 4,395

0.2%

3,434 3,625

RESIDENTIAL INDUSTRIALCOMMERCIAL OTHERS TOTAL

1H12 1H13 1H12 1H13 1H12 1H13 1H12 1H13 1H12 1H13

FREECAPTIVE

ELECTRICITY CONSUMPTION (GWh)

TOTAL MARKET – HALF

Total Market

Total Varejo Grandes Clientes Poder Público

2T12 2T13

mar-12 mar-13

Collection

108.1%

COLLECTION RATE12 MONTHS

COLLECTION RATE BY SEGMENTQUARTER

103.9%104.2%

104.5%105.0% 100.1

%

101.8%

107.4%

2Q12

2Q13

98.2% 99.5%

Jun/12 Jun/13Total Retail Large Clients

Public Sector

Total Varejo Grandes Clientes Poder Público

1S12 1S13

mar-12 mar-13

Collection

102.5%

COLLECTION RATE12 MONTHS

COLLECTION RATE BY SEGMENTHALF

99.3%102.5

%102.0%

98.0%

99.7%103.4

%

104.0%

1H12 1H13

98.2% 99.5%

Jun/12 Jun/13Total Retail Large Clients

Public Sector

1S12 1S12

1S12 1S12

jun/12 set/12 dez/12 mar/13 jun/13

Loss Prevention

INCORPORATIONGWh

1H131H12

69.4

50.4+37.6%

ENERGY RECOVERYGWh

1H131H12

35.635.3

LOSS (12 MONTHS)

43.1%42.2

% 32.9%

% Non-technical losses/ LV Market

Non-technical losses GWh

Technical losses GWh

% Non-technical losses / LV Market - Regulatory

5,615

2,432

7,838 8,047

44.2%

+1.0%

Mar/13Jun/12 Jun/13

2,381

5,457

45.4%

6,029

2,618

8,647

Sep/12

6,007

2,577

8,584

Dec/12

44.9%

5,953

2,629

8,582

mar-12 mar-13

mar-12 mar-13

Losses Control InitiativesResults until June/13

Average losses reduction: 26.0 p.p.Average Collection increase: 7.0 p.p.

Average losses reduction : 51.8 p.p.Average Collection increase : 80.4 p.p.

FavelasZero Losses Area (APZ)

NeighborhoodClient

NumbersNon-Technical Losses / Low Voltage Market *

Collection Rate

Curicica 13.034 11,9% 99,0%Realengo 10.141 15,8% 98,1%Cosmos 35.216 20,8% 105,1%Sepetiba 18.960 31,5% 97,4%Caxias 1 e 2 13.907 22,9% 93,7%Belford Roxo 1 e 2 20.005 29,1% 94,8%Vigário Geral 16.141 15,8% 99,6%Caxias 3 16.768 22,9% 98,7%Nova Iguaçu 1 32.423 31,5% 97,9%Nova Iguaçu 2 20.500 24,5% 96,2%Nilópolis 9.923 28,5% 94,1%Nilópolis Convencional 11.080 14,0% 96,7%Ricardo de Albuquerque 24.593 18,1% 97,6%Mesquita 8.759 34,0% 94,8%Cabritos/Tabajaras/Chapéu Mangueira/Babilônia 5.277 11,6% 96,7%Coelho da Rocha 17.621 16,8% 91,6%Batan 7.151 9,5% 103,5%Total 281.499 22,5% 98,2%* Reflects the results accumulated until jun/13 since the begining of the implementation of each APZ.

Before Current Before Current

Santa Marta 2009 95,0% 5,1% 0,2% 98,3%Cidade de Deus 1 2010 52,1% 14,5% 23,1% 96,2%

Chapéu Mangueira 16,2% 101,4%Babilônia 5,4% 97,1%Cabritos 1,4% 96,6%

Tabajaras 9,5% 95,1%Formiga 2011 73,3% 10,8% 31,4% 92,6%

Batan 2012 61,8% 8,9% 1,2% 91,0%Borel 2013 60,5% 26,1% 9,4% 84,3%

Collection

2010 62,7% 8,6%

2011 62,3% 11,8%

Areas Conclusion Year

Losses

Net Revenue

Industrial 5.5%

NET REVENUE (R$MN)

Generation 7.4% Distribution

83.1%**

NET REVENUE BY SEGMENT (2Q13)*

Commercialization 9.5%

* Eliminations not considered

** Construction revenue not considered

NET REVENUE FROM DISTRIBUTION (2Q13)

Commercial 30.0%

Others (Captive) 12.7%

Network Use (TUSD)(Free +

Concessionaires)

9.7% Residential 42.1%

Construction RevenueRevenue w/out construction revenue

2T12 2T13 1S12 1S132Q132Q12

+3.2%

,.846.5

1,790.1

162.2

1,670.9

1,627.9

175.6

+4.8%

3,389.1

3,532.0

332.8299.7

3,688.8

3,864.8

+2.6%

+4.2%

1H131H12

Operating Costs and Expenses

Manageable (distribution): R$ 358.4(22.4%)

Generation and Commercialization: R$

207.9(13.0%)

Non manageable (distribution): R$ 1,036.6(64.7%)

* Eliminations not considered

** Construction revenue not considered

DISTRIBUTION MANAGEABLE COSTS (R$MN)COSTS (R$MN)*2Q13

R$ MN 2Q12 2Q13 Var. 1H12 1H13 Var.

PMSO 169.9 202.3 19.0% 337.6 386.3 14.4%

Provisions 84.0 66.6 -20.7% 170.5 111.8 -34.4%

PCLD 72.2 48.4 -33.0% 133.8 77.4 -42.1%

Contingencies 11.8 18.2 54.2% 36.7 34.4 -6.3%

Depreciation 67.9 83.8 23.6% 143.6 164.5 14.6%

Other operational/revenues expenses

0.8 5.7 567.2% 4.1 12.9 219.2%

Total 322.6 358.4 11.1% 655.7 675.5 3.0%

2T12 2T13 1S12 1S13

322.6 358.4

+11.1%

2Q132Q12 1H131H12

655.7 675.5

+3.0%

Distribuição ;

62,6%; 62,57%

Geração; 35,9%;

35,89%

Comercialização;

1,5%; 1,54%

EBITDA

CONSOLIDATED EBITDA (R$MN) EBITDA BY SEGMENT*2Q13

Generation 35.9% (EBITDA Margin: 75.9%)

Commercialization 1.5%

(EBITDA Margin: 2.5%)

Distribution 62.6%(EBITDA Margin: 11.7%)

*Eliminations not considered

2T12 2T13 1S12 1S13

277.9255.1

+8.9%

2Q12 2Q13 1H12 1H13

633.1688.5

-8.0%

EBITDA Ajustado -

2T11

Ativos e Passivos

Regulatórios

EBITDA -2T11

Receita Líquida

Custos Não Gerenciáveis

Custos Gerenciáveis

(PMSO)

Provisões EBITDA -2T12

Ativos e Passivos

Regulatórios

EBITDA Ajustado -

2T12

EBITDA

EBITDA2Q12

EBITDA2Q13

Net Revenu

e

Non-Manageabl

e Costs

Manageable Costs (PMSO)

Provisions

Regulatory Assets and Liabilities

Regulatory Assets and Liabilities

Adjusted EBITDA

2Q12

Adjusted EBITDA

2Q13

EBITDA – 2Q12 / 2Q13(R$ MN)

Other operation

al/revenues

+ 20.1%

+8.9%

Equity Pick-up

76

331

255

43 1 (33)(6)

0.2119

39717

278

EBITDA Ajustado -

2T11

Ativos e Passivos

Regulatórios

EBITDA -2T11

Receita Líquida

Custos Não Gerenciáveis

Custos Gerenciáveis

(PMSO)

Provisões EBITDA -2T12

Ativos e Passivos

Regulatórios

EBITDA Ajustado -

2T12

EBITDA

EBITDA1H12

EBITDA1H13

Net Revenu

e

Non-Manageabl

e Costs

Manageable Costs (PMSO)

Provisions

Regulatory Assets and Liabilities

Regulatory Assets and Liabilities

Adjusted EBITDA

1H12

Adjusted EBITDA

1H13

EBITDA – 1H12 / 1H13(R$ MN)

Other operational/

revenues

+ 12.0%

-8.0%

Equity Pick-up

74

762

689

143 (191)

(1)

220

854

59

633

(52) (13)

EBITDA Ajustado -

2T11

Ativos e Passivos

Regulatórios

EBITDA -2T11

Receita Líquida

Custos Não Gerenciáveis

Custos Gerenciáveis

(PMSO)

Provisões EBITDA -2T12

Ativos e Passivos

Regulatórios

EBITDA Ajustado -

2T12

Net Income

2Q12 2Q13EBITDA

Financial Result

Taxes Others

ADJUSTED NET INCOME 2Q12 / 2Q13 (R$ MN)

Regulatory Assets and Liabilities

Regulatory Assets and Liabilities

Adjusted Net Income

2Q12

Adjusted Net Income

2Q13

+ 46.2%

+ 52.5%

LL Ajustado 2T12

Ativos e passivos

Regulatórios

2T12 EBITDA Resultado Financeiro

Impostos Outros 2T13 Ativos e passivos

Regulatórios

LL Ajustado 2T13

Lucro Líquido e Lucro Líquido Ajustado 1T12/1T13 - R$ Milhões

9050

40

23

26(14

) (16)

58

79137

EBITDA Ajustado -

2T11

Ativos e Passivos

Regulatórios

EBITDA -2T11

Receita Líquida

Custos Não Gerenciáveis

Custos Gerenciáveis

(PMSO)

Provisões EBITDA -2T12

Ativos e Passivos

Regulatórios

EBITDA Ajustado -

2T12

Net Income

1H12 1H13EBITDA

Financial Result

Taxes Others

ADJUSTED NET INCOME 1H12 / 1H13 (R$ MN)

Regulatory Assets and Liabilities

Regulatory Assets and Liabilities

Adjusted Net Income

1H12

Adjusted Net Income

1H13

- 23.9%

+ 23.6%

LL Ajustado - 1S12

Ativos e passivos

Regulatórios

1S12 EBITDA Resultado Financeiro

Impostos Outros 1S13 Ativos e passivos

Regulatórios

LL Ajustado - 1S13

Lucro Líquido e Lucro Líquido Ajustado 2011/2012 - R$ Milhões

228

49

180

(55) 16 16 (20)

137

145282

Custo Nominal Custo Real

2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 After

2022

Indebtedness

Average Term: 4.2 years

AMORTIZATION SCHEDULE* (R$ MN)

Nominal Cost Real Cost

NET DEBT¹Without Pension Fund

*ConsideringHedge

* Principal only

COST OF DEBT

2012201120102007 2008 2009 set/10

Custo Real Custo Nominal

Jun/13

Net Debt / EBITDA

2009 2010 2011 2012

Custo Nominal Custo Real

2009 2010 2011 2012

Custo Nominal Custo Real

2009 2010 2011 2012

Custo Nominal Custo Real

3T09 3T10 9M09 9M10Jun/13Mar/13

2.24%

8.21%

4.87%

11.08%

4.25%

11.03%

8.84%

2.40%

2009 2010

Custo Real

Custo Real

4,031.4 4,056.1

2.73 2.62

1 Reclassified to reflect the deconsolidation results of jointly controlled companies.

2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 Após

2022

266

663772

1,007

799665

437 442 442192

347

TJLP15.6%

CDI 72.4%

IPCA 10.1%

Others 1.5%

U$/Euro 0.5%

Investments

CAPEX (R$ MN)CAPEX BREAKDOWN

(R$ MN)1H13

Generation7.1

Administration 13.7

Others5.2

Develop. of Distribution System

175.0

Losses Combat

92.6

Investments in Electric Assets (Distribution)

Commerc./Energy

Eficiency33.1

2008 2009 2010 2011 2012 2008 2009 2010 2011 9M11 9M1220102009

563.8

928.6

700.6

2011 2012

796.8

694.1

102.7

446.9

116.9

518.8

181.8774.8

153.8

2008 2009 2010 2011 9M11 9M121H131H12

302.3 272.8

26.0 53.9

328.4 326.7

-0.5%

Tariff Review

Preliminary proposal - Main issues:

1) Remuneration Asset Base: • Gross Remuneration Asset Base: R$ 11,451,023,315• Net Remuneration Asset Base : R$ 6,398,174,913

2) Regulatory Non-Technical Losses: • Starting point: 31.82%• Reduction trend: 1.195 p.p.

Work Group comprised of the Aneel’s technician within thirty days as from August 7, 2013

Next steps:September, 13 – Public Hearing meetingOctober, 3 – Aneel sends new proposal to Light and consumers’ representatives (estimate)October, 29 – Aneel’s Board Meeting (estimate)November, 7 – Tariff Review

Important Notice

This presentation may include declarations that represent forward-looking statements according to Brazilian regulations and international movable values. These declarations are based on certain assumptions and analyses made by the Company in accordance with its experience. the economic environment. market conditions and future events expected. many of which are out of the Company’s control. Important factors that can lead to significant differences between the real results and the future declarations of expectations on events or business-oriented results include the Company’s strategy. the Brazilian and international economic conditions. technology. financial strategy. developments of the public service industry. hydrological conditions. conditions of the financial market. uncertainty regarding the results of its future operations. plain. goals. expectations and intentions. among others. Because of these factors. the Company’s actual results may significantly differ from those indicated or implicit in the declarations of expectations on events or future results.

The information and opinions herein do not have to be understood as recommendation to potential investors. and no investment decision must be based on the veracity. the updated or completeness of this information or opinions. None of the Company’s assessors or parts related to them or its representatives will have any responsibility for any losses that can elapse from the use or the contents of this presentation.

This material includes declarations on future events submitted to risks and uncertainties. which are based on current expectations and projections on future events and trends that can affect the Company’s businesses. These declarations include projections of economic growth and demand and supply of energy. in addition to information on competitive position. regulatory environment. potential growth opportunities and other subjects. Various factors can adversely affect the estimates and assumptions on which these declarations are based on.

Contacts

João Batista Zolini CarneiroCFO and IRO

Luiz Felipe Negreiros de SáSuperintendent of Finance and Investor Relations

+55 21 2211 2814felipe.sa@light.com.br

Gustavo WerneckIR Manager

+ 55 21 2211 2560gustavo.souza@light.com.br

www.light.com.br/ri www.facebook.com/lightri twitter.com/LightRI