AES Dominicana 2Q10

Second Second Quarter Relevant Results

Contact: Yandery Teran Investor Relations Director (1) (809) 955-2223

Santo Domingo, Dominican Republic August 17th, 2010

2Q10 Relevant Results

inversoraescac@aes.com

www.aesdominicana.com.do

AES Andres B.V. and Subsidiary and Dominican Power Partners and Subsidiary announced a combined Net Income of US$12.6 million in the second quarter 2010.

Santo Domingo, Dominican Republic, August 17th, 2010 – Today AES Andres and Dominican Power Partners (DPP) announced combined results for the second quarter 2010. All operating and financial information, except where otherwise specified, is based on the combined figures of AES Andres and Dominican Power Partners, and their subsidiaries, and expressed in US dollars in conformity with Generally Accepted Accounting Principles Applicable in the United States (USGAAP).

Revenues increased 74.6% to US$89.4 million in the second quarter 2010 compared to the same period of 2009 and the accumulated Revenues for the six-month period ending in June 2010 increased 75.4% to US$178.9 million. Net Income for the second quarter 2010 was US$12.6 million compared to a Net Loss of US$13.7 million in the same period of 2009 and the accumulated Net Income as of June 2010 was US$27.3 million compared to a Net Loss of US$18.4 million in the same period 2009.

2Q10

2Q09

89.4 55.9 33.5 37.5% 12.6

(Millions of US$)

6M10

51.2 Revenues 49.9 Operating costs and expenses 1.3 Operating income

178.9 112.0 66.9

2.5% Operating income margin

37.4%

7.3%

27.3

(18.4)

52.6

(3.2)

(13.7) Net Income (loss) (*) Net Cash Provided (Used) by (3.3) Operating Activities

(5.0)

6M09 102.0 94.6 7.4

(*) Net Income includes interest expenses of US$9.5 million in 2Q10 and 2Q09 and US$19.0 million in 6M10 and 6M09, respectively, related to interest under a subordinated intercompany loan under which AES made its capital injections to finance the development and construction of Andres. AES views this loan as an equity investment and the respective interests are a restricted payment under the indenture. The total amount accrued as of June 30, 2010 and 2009 was paid.

Inside this report: Analysis of Financial Results

2

Financial Debt Summary

3

Liquidity

4

Regulation

4

Operational Results

4

Operational Developments

5

Safety Indicators

5

Environmental Matters

5

Financial Statements

6

Glossary of Key Terms 1

External Factors

Coal, Natural Gas and Fuel-Oil #6 Price Evolution

Dominican Republic’s GDP grew 7.5% during 1Q10.

The exchange rate as of June 30th, 2010 was RD$36.73 per US dollar (Bid) and RD$36.81 per US dollar (Ask).

10.63

Fuel-Oil #6

10.26

10 US$/MMBTU

Inflation stood at 2.87% at the end of June, 2010.

12

8

7.97

6 4

4.92

Natural Gas 4.35

3.81 2.26

2

2.97 Coal

2.21

0 2Q09

3Q09

4Q09

1Q10

2Q10

Average Nymex Henry Hub natural gas prices were US$4.35 per MMBtu for the second quarter, with a peak of US$5.19 per MMBtu and a low of US$3.91 per MMBtu.2 .

Total electricity demand as of June 30th, 2010 reached 5,798 GWh, an increase of 10.0 % versus the same period 2009.

1 2

Source: Dominican Central Bank, Coordinating Body and Platts.

Pricing under the BP Contract is at a premium to the Henry Hub natural gas price per MMbtu on the NYMEX Index.

AES Dominicana, Earning Release

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10

2Q10 Relevant Results Analysis of Combined Financial Results (In USGAAP) Revenues increased 74.6% to US$89.4 million in the second quarter 2010 compared to the same period of 2009. These results were mainly driven by: (i) higher contracted sales by US$21.7 million, primarily due to a higher quantity of energy sales and higher prices which are indexed monthly to the NYMEX natural gas prices; (ii) higher spot sales by US$15.8 million, largely a result of an increase in spot prices and volume sold; and, (iii) an increase of US$0.7 million in natural gas & other sales.

For the six months ending June 30th, 2010, Revenues totaled US$178.9 million, an increase of 75.4% as compared to the same period of 2009. This result was mainly caused by: (i) higher contracted sales by US$42.9 million, basically to higher prices and higher energy quantity; (ii) higher spot sales by US$33.0 million due to higher generation and higher average prices; and (iii) higher other sales by US$1.0 million due to higher natural gas sales.

It should be noted that lower generation during the first semester 2009, that drives the variations described above, was driven by Andres’ limited capacity operation during part of this period.

Revenues consist of the following:

2Q10

2Q09

69.6 18.5 1.3 89.4

47.9 2.7 0.6 51.2

Var% 45.3 585.2 116.7 74.6

(Millions of US$) Electricity sales – Contracts Electricity sales – spot market Natural Gas Sales & Other Sales Total Revenues

6M10 137.8 38.7 2.4 178.9

6M09 94.9 5.7 1.4 102.0

Var% 45.2 578.9 71.4 75.4

Operating Costs and Expenses increased 12.0%, in the second quarter 2010, to US$55.9 million compared to the same period of 2010. This variance was principally a net result of: (i) higher fuel costs by US$8.5 million due to higher fuel prices and higher generation; (ii) lower electricity purchases by US$1.6 million due to higher generation; (iii) Lower operating maintenance and general expenses by US$1.5 million since in 2009 Andres had its first major maintenance; (iv) higher depreciation expenses by US$1.1 million; and, (v) lower derivate instruments by US$0.5 million.

During the first six-month of 2010, Operating Costs and Expenses increased 18.4% to US$112.0 million compared to the first six months of 2009. This variance was mainly caused by: (i) higher LNG consumption by US$14.5 million due to higher prices and generation; (ii) higher energy purchases by US$3.8 million; (iii) lower operating, maintenance and general expenses by US$1.3 million; (IV) higher depreciation and amortization of intangible assets by US$1.1 million; and, (v) lower derivatives instruments by US$0.7 million.

2Q10 41.5 9.0 0.4 5.0 55.9

2Q09 34.6 10.5 0.9 3.9 49.9

Var% 19.9 (14.3) (55.6) 28.2 12.0

(Millions of US$) Cost of sales - electricity purchases and fuel costs for generation & resale Operating, maintenance and general expenses Derivatives Instruments Depreciation and amortization of intangible assets Total Operating Cost and Expenses

6M10 86.3 16.5 0.2 9.0 112.0

6M09 68.0 17.8 0.9 7.9 94.6

Var% 26.9 (7.3) (77.8) 13.9 18.4

Operating costs and expenses consist of the following: Total Other Expenses were US$12.2 million in the second quarter 2010, a decrease of 16.4% when compared to US$14.6 million in the same period of 2009. This decrease was mainly a function of: (i) the absence of Impairment Expenses from Investment Assets (which had been realized in the same period of 2009 by US$7.2 million); (ii) higher other expenses by US$3.6 million in 2009 (the insurance reimbursement from the transformer failure was booked during this period in 2009); (iii) lower commercial interest income by US$1.1 million; (iv) Lower foreign currency gain by US$0.3 million; and, (v) lower deferred financing cost by US$0.2 million.

For the first six-months of 2010, Net Expenses decreased to US$23.7 million, as compared to total expenses in the same period of 2009 by US$25.4 million. This variance was mainly attributed to: (i) the absence of Impairment Expenses from Investment Assets (which had been realized in the same period of 2009 by US$7.3 million); ii) higher other expenses by US$4.1 million; (iii) lower net commercial interest income by US$2.2 million; (iv) lower deferred financing cost amortization by US$0.5 million; (v) lower interest financial expenses by US$0.4 million; (vi) lower foreign currency gain by US$0.3 million; and, (vii) lower subordinated intercompany loan interest expense by US$0.1 million.

AES Dominicana, Earning Release

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2Q10 Relevant Results Other (Expenses) consists of the following:

2Q10

2Q09

(4.2) (4.2) 2.3 3.4 (9.5) (9.5) (0.4) (0.6) 0.0 (7.2) (0.4) 3.2 0.0 0.3 (12.2) (14.6)

Var% 0.0 (32.4) 0.0 (33.3) n/a n/a n/a n/a

(Millions of US$)

6M10

Interest (expense) – financial - net Interest income – commercial and others-net Subordinated intercompany loan interest expense (*) Deferred financing costs amortization Investment Asset Impairment Expense Other Income (expenses) Foreign currency gain Total Other (Expenses)

(8.3) 4.6 (18.9) (0.8) 0.0 (0.5) 0.2 (23.7)

6M09 (8.7) 6.8 (19.0) (1.3) (7.3) 3.6 0.5 (25.4)

Var% (4.6) (32.4) (0.5) (38.5) n/a n/a (60.0) (6.7)

(*)Interest expenses are those generated by the subordinated intercompany loan under which AES made its capital injections to finance the development and construction of Andres.

Net Cash Used in Operating Activities was US$5.0 million for the second quarter 2010 compared to a Net Cash Used in Operating Activities of US$3.3 million in the same period of 2009, mainly due to the following: (i) Higher net income by US$26.3 million; (ii) negative impact due to lower accounts payables by US$20.3 million; (iii) positive impact of lower accounts receivables

by US$15.5 million; (iv) higher income tax receivable by US$12.2 million; (v) lower investment asset impairment expenses by US$6.4 million; and, (vi) negative reconciling adjustment by US$4.6 million reconciling net income to net cash used in operations.

For the first six-month of 2010, the Net Cash Provided by Operating Activities was US$52.6 million against a Net Cash Used in operating activities of US$3.2 million for the first six-month of 2009. This variation was primarily the result of: (i) higher net income by US$45.7 million; (ii) lower accounts receivable by US$30.7 million mainly a result of extraordinary collections in March 2010 that resulted from Government Stand-By Agreement with the IMF; (iii) higher income tax expenses by US$13.2 million; (iv) higher income tax receivable by US$12.2 million; (v) lower accounts payables by US$10.0 million; (vi) lower investment asset impairment expense by US$6.4 million; and, (vii) US$5.2 million higher negative reconciling adjustments, reconciling net income to net cash provided by operations.

Free Cash Flow (a non-GAAP financial measure defined as net cash from operating activities less capital expenditures defined in the accompanying financial statement as Additions to Property, Plant and Equipment and advances to suppliers in purchases of PP&E) was net cash used in US$9.1 million for the second quarter 2010. In addition to the net cash used in Operating Activities of US$5.0 million, during this period, there were additions to property, plant and equipment of US$4.1 million.

For the first six-month of 2010, the Free Cash Flow was net cash provided of US$46.8 million. In addition to the net cash provided by operating activities of US$52.6 million, there were additions to property, plant and equipment by US$5.8 million.

Financial Debt Summary On June 14th, Andres paid interest due on its Senior Bonds of US$8.6 million, and paid US$19.0 million of interest on its intercompany loan.

The businesses’ financial debt is comprised of 144A/Reg S Senior Notes with a maturity date of December 2015.

Financial Debt

Jun-10

Dic-09

156 156

161 161

100%

100%

(expressed in millions of US$)

Local Currency Foreign Currency Total Debt Fixed Rate Variable Rate

0%

0%

Short Term

0%

0%

100% 12.22%

100% 11.86%

6

6

Long Term Financing Cost (*) Average Life (years)

(*) (1) After tax rates. (2) The Notes effective rate includes the interest income accrued by the interest debt reserve.

AES Dominicana, Earning Release

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2Q10 Relevant Results Rating Agency

Rating

Outlook

Fitch Ratings

Senior Notes 2015

B-

Stable

Standard & Poor's

Senior Notes 2015

B-

Stable

Feller Rate

Guaranteed Ordinary Bonds

BBB (dom)

Fitch Dominicana

Guaranteed Ordinary Bonds

BBB (dom)

Liquidity Collections

Collection Rate

In the second quarter of 2010, the average collections rate stood at 100% compared with 227% registered in the same quarter of 2009 (during 2Q09, Andres & DPP accepted sovereign bonds as a form of compensation for 2008 outstanding accounts receivable in a total amount of US$56 million).

Sovereign Bonds Effect

IMF Agreement Effect

227% 167% 120% 72%

During the first 6 months of 2010, the average collection rate stood at 110%. This favorable collection rate was primarily due to a loan taken out by the DR Government in order to pay their current debts to the generation companies. During this time frame they have reduced accounts receivable to 60 days outstanding and have maintained this in order to continue to comply with the IMF requirements.

2Q09

3Q09

100%

4Q09

1Q10

2Q10

Regulation In July, the Dominican Government submitted to the Congress an amendment to the electricity budget for around US$300 million.

Operational Results In the second quarter of 2010, the Combined Net Generation was up by 82.2% relative to the second quarter of 2009, from 445 GWh in 2009 to 811 GWh in 2010. This increase was mainly a net result of two factors: (i) Los Mina VI was generating as base load power plant; and, (ii) during 2Q09 Andres’ was operating at limited capacity because the transformer failure ocurred in December 2008.

Total Energy Sold during 2Q10 was 815 GWh, an increase of 52.3% compared with 2Q09, a function of the higher generation mentioned above. During the second quarter 2010, Andres’ Firm Capacity increased 18.2% to 253MW, the EAF increased to 99% and the EFOR was 0.

For the first half 2010, Combined Net Generation was 1,526 GWh, an increase of 61.7% compared to the same period of 2009.

The Energy Sold increased 48.1% to 1,539 GWh, basically due higher generation, higher UNRs sales and new contracts with EDESur and EDENorte (in 2009, we only had an energy contract with EDENorte). Andres’ Firm Capacity increased 16.7% to 251MW and the EFOR decreased from 25.9% to 0 because the implementation of several operational improvement initiatives.

As of June 30th, 2010 Installed capacity (MW) Power Generation Units Effective capacity (MW) Contracted capacity (MW)

AES Dominicana, Earning Release

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Andres 319 1 304 112

DPP 236 2 236 210

Aggregate 555 3 540 322

2Q10 Relevant Results

2Q10

2Q09 *

Var.%

Operating Data

6M10

6M09 *

Var.%

823 (12)

452 (7)

82.1 Gross generation 71.4 Internal consumption

GWh GWh

1,550 (24)

959 (15)

61.6 60.0

811

445

82.2 Net Generation

GWh

1,526

944

61.7

815 253 7,592 99 0

535 214 7,805 60 11.5

GWh MW Btu/KWh % %

1,539 251 7,621 95 0

1,039 215 8,005 59 25.9

23

21

MW

22

21

4.8

79

96

(17.7) DPP EAF

%

71

95

(25.3)

0.1

6.5

(98.5) DPP EFOR

%

0.5

6.9

(92.8)

52.3 18.2 (2.7) 65.0 (100.0)

Total Energy Sold Andres' Firm Capacity Andres Heat Rate Andres EAF Andres EFOR

9.5 DPP's Firm Capacity

48.1 16.7 (4.8) 61.0 (100.0)

* Data revised.

Operational Developments On May 22nd Los Mina VI was put out of service for 35 days, for programmed major maintenance.

During the second quarter of 2010, Andres signed nine contracts with Non Regulated Users of the market for a total of approximately 10MW. As of June 30th, Andres had 38 UNRs contracts, totaling 62 MW. During the second quarter 2010, three vessels docked at Andres LNG Terminal carrying around 9 TBtu of natural gas.

Safety Indicator During the second quarter of 2010, Andres and DPP accomplished the goal of zero Lost Time Incidents (LTI) and no fatalities.

During the second quarter of 2010, the Safety Day was celebrated and included the Safest Employee Award, Incident Report and Notification Program Conference, Safety Program Conference, Respirator Use, First Aid Training, Formation of the Safety Committee for Corporate Offices and Safety KPI’s divulgation.

During the first semester of 2010, the first steps for the Proactive Safety Culture where implemented. These steps include a Monthly Message from the leaders of the Corporation shared with 100% of the employees. The messages from this quarter included the Incident Report, Safety Walks and Safety Inspections. Conferences were dictated for Emergency Preparedness for Earthquakes, Safe Driving (use of phone and texting while driving) and Hazard and Risk Management.

Environmental Matters During the second quarter 2010, Andres was recognized for receiving the “National Prize of Environmental Management” and it had a special mention for “Industrial Quality”; in addition, the business celebrated Environmental Day.

AES Dominicana, Earning Release

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2Q10 Relevant Results

AES Andres B. V. and Subsidiary & Dominican Power Partners and Subsidiary (Indirect Wholly-Owned Subsidiaries of The AES Corporation) UNAUDITED PRO FORMA COMBINED STATEMENTS OF OPERATIONS (Expressed in US$ Thousands)

2Q10

2Q09

6M10

6M09

REVENUES 69,606 18,515 1,303 13 89,436

47,944 2,676 483 114 51,217

Electricity sales – contracts Electricity sales – spot market Natural gas sales Other sales Total revenues

137,772 38,737 2,372 27 178,908

94,970 5,708 1,237 128 102,043

84,774 1,516 16,481 254 9,021

68,050 17,814 935 7,886

112,046

94,684

66,862

7,359

(3,669) (18,955) (767) (533) 211

(1,907) (19,060) (7,226) (1,245) 3,543 474

43,149

(18,063)

OPERATING COSTS AND EXPENSES 40,704 833 8,990 398 4,995

35,249 (679) 10,560 935 3,897

55,920

49,962

33,516

Cost of sales – electricity purchases and fuel costs used for generation Cost of sales – fuel and fuel related costs purchased for resale Operating, maintenance and general expenses Derivatives instruments Depreciation and amortization of intangible assets Total operating costs and expenses

1,255 OPERATING INCOME OTHER INCOME (EXPENSES)

(1,855) (9,530) (389) (494) 53 21,301 (8,750) 12,552

(818) (9,530) (7,226) (584) 3,172 252

Interest expense – net Subordinated intercompany loan interest expense (*) Investment Asset Impairment Expense Deferred financing costs amortization Other (expenses) income Foreign currency gain

(13,479) INCOME (LOSS) BEFORE TAXES (267)

Income tax expense

(15,878)

(13,746) NET INCOME (LOSS) (**)

27,271

(340) (18,403)

The company’s Financial Results were prepared in Dollars in conformity with Generally Accepted Accounting Principles in the United States, as of any date of determination, or “GAAP.”

(*) Interest expenses are those generated by the subordinated intercompany loan under which AES made its capital injections to finance the development and construction of Andres.

(**)Net Income includes interest expenses of US$9.5 million in 2Q10 and 2Q09 and US$19.0 million in 6M10 and 6M09, respectively, related to interest under a subordinated intercompany loan under which AES made its capital injections to finance the development and construction of Andres. AES views this loan as an equity investment and the respective interests are a restricted payment under the indenture. The total amount accrued as of June 30, 2010 and 2009 was paid. .

AES Dominicana, Earning Release

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2Q10 Relevant Results AES Andres B. V. and Subsidiary & Dominican Power Partners and Subsidiary (Indirect Wholly-Owned Subsidiaries of The AES Corporation) UNAUDITED PRO FORMA COMBINED BALANCE SHEETS (Expressed in US$ Thousands)

June 30th, 2010

Dec. 31st, 2009

103,509 1,196 101,193 10,280 411 5,622 18,265 4,581 1,390 246,448

61,831 1,209 1,171 111,580 6,508 2,180 2,848 19,407 1,483 3,155 211,373

10,370 581,124 (129,657) 461,838

10,370 573,919 (121,645) 462,644

3,505 23,811 8,580 1,317 37,212

3,750 25,157 8,580 1,590 39,077

745,498

713,094

28,387 3,952 43,892 4,644 80,875

16,667 3,422 5,000 46,862 4,726 76,678

22,005 413,153 156,000 707 51 172 592,088

21,373 413,153 156,000 453 76 177 591,233

15,019 108,420 1,310 (52,178) (37) 72,535

15,019 109,158 (299) (78,660) (35) 45,183

745,498

713,094

ASSETS CURRENT ASSETS Cash and cash equivalents Restricted cash Short term investment Accounts receivable Accounts receivable – related parties Other receivable Other receivable – related parties Inventories Prepaid expenses Deferred tax asset Total current assets PROPERTY, PLANT AND EQUIPMENT Land Plant and electricity generating equipment Less accumulated depreciation Property, plant and equipment OTHER ASSETS Deferred financing costs – net Long term accounts receivable Debt service reserves Other assets Total other assets TOTAL LIABILITIES AND SHAREHOLDER'S EQUITY CURRENT LIABILITIES Accounts payable and accrued liabilities Accounts payable and accrued liabilities – related parties Notes payable - short term Income tax payable Deferred income tax - short term Total current liabilities LONG TERM LIABILITIES Deferred income tax - long term Intercompany loan Notes payable Long term derivative Long term compensation Other liabilities Total long term liabilities SHAREHOLDER'S EQUITY Common stock Contributed capital Additional paid–in capital Accumulated losses Accumulated other comprehensive loss Total shareholder's equity TOTAL

The company’s Financial Results were prepared in Dollars in conformity with Generally Accepted Accounting Principles in the United States, as of any date of determination, or “GAAP.”

AES Dominicana, Earning Release

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2Q10 Relevant Results AES Andres B. V. and Subsidiary & Dominican Power Partners and Subsidiary (Indirect Wholly-Owned Subsidiaries of The AES Corporation) UNAUDITED PRO FORMA COMBINED STATEMENTS OF CASH FLOWS (Expressed in USD Thousands)

2Q10

2Q09

6M10

6M09

OPERATING ACTIVITIES: 12,552

(13,746)

4,995 398 7,556 389 550 0 (9,387) 61 1,194 -

3,897 935 (101) 584 1,678 (1,776) 0 (9,530) 39 368 6,411

2,373 2,674 2,275 (1,700) (1,832) (2,860) 2,441 (3,155) (6,926) 529 (15,977) (1,051) (65) (47)

(2,646) (5,009) 28 (2,209) (587) 12,200 (3,100) 1,230 12,019 1,917 (5,628) 22 (79) (184)

(5,014)

(3,270)

(4,047) 13 1,171 (743)

(14,599) 15,072 0 (1) 1 1,689

(3,606)

2,163

(513)

(5,404) (701)

(513)

(6,105)

(9,132)

Net income (Loss) Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization Derivative instruments Income tax expense Deferred financing costs amortization Loss on sale of investment Loss on asset disposal Foreign currency translation Subordinated intercompany note interest expense Long term incentive compensation Deferred income tax expense Investment Asset Impairment Expense Changes in assets and liabilities: Decrease (increase) in accounts receivable Increase in accounts receivable – related parties Decrease in other receivable Increase in other receivable – related parties Decrease (increase) in inventory Decrease in income tax receivable (Increase) in prepaid expenses Decrease in deferred tax asset (Decrease) Other assets Increase in accounts payable and accrued liabilities Increase in accounts payable and accrued liabilities – related parties (Decrease) in income tax payable (Decrease) Increase in deferred tax liability (Decrease) in long term compensation (Decrease) increase in Other liabilities Net cash provided by (used in) operating activities INVESTING ACTIVITIES: Additions to property, plant and equipment Decrease in long term investment Changes on intangible assets Proceeds from sales of property, plant and equipment Decrease in restricted cash Advances to suppliers in purchase of PP&E Decrease in short term investments Decrease in debt service reserves (Decrease) increase in other deposits Net cash provided by (used in) investing activities FINANCING ACTIVITIES: New borrowings – Notes payable Financing costs payments Net cash provided by (used in) financing activities

27,271

(18,403)

9,021 254 13,136 767 550 (2) 126 2,742 14,414 (3,772) 1,769 (2,774) 1,142 (3,098) 1,765 9,871 529 (18,787) (2,192) (65) (31)

7,886 935 (50) 1,245 1,678 0 109 390 6,411 (13,940) (5,009) 110 (2,193) (6,907) 12,200 (2,008) 1,230 19,431 949 (6,897) (311) (79) 45

52,636

(3,178)

(5,786) 13 1,171 (835)

(15,862) 15,072 6 1 58

(5,437)

(725)

(5,000) (521)

(10,404) (701)

(5,521)

(11,105) (15,008)

(7,212) NET INCREASE (DECREASE) IN CASH

41,678

112,642

32,639 CASH AND CASH EQUIVALENTS AT THE BEGINNING OF THE PERIOD

61,831

40,435

103,509

25,427 CASH AND CASH EQUIVALENTS AT THE END OF THE PERIOD

103,509

25,427

The company’s Financial Results were prepared in Dollars in conformity with Generally Accepted Accounting Principles in the United States, as of any date of determination, or “GAAP.”

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2Q10 Relevant Results The pro forma combined balance sheet and statement of operations presented in this report have not been audited and were derived from the unaudited consolidated financial statements of Andres and the unaudited consolidated financial statements of DPP. The information provided by the consolidated financial statements of Andres and the consolidated financial statements of DPP has been prepared in accordance with USGAAP. The unaudited pro forma combined financial information described above is being provided for illustrative purposes only. Andres and DPP may have performed differently if they had actually been combined during the periods presented. This unaudited pro forma combined financial information should be read in conjunction with the unaudited consolidated financial statements as of and for the periods ended on June 30th, 2010 and 2009 and December 31, 2009, and notes thereto, of each of Andres and DPP. You should not rely on the pro forma combined financial information as being indicative of the historical results that would have been achieved by Andres and DPP if they had always been combined.

Andres and DPP, affiliates of The AES Corporation (AES), own and operate power generation units that in the aggregate have 555 MW of installed capacity, which represent approximately 21% of the current total installed capacity, in the Dominican Republic. Andres also has the only liquefied natural gas, or LNG, shipment receiving terminal in the Dominican Republic, a degasification facility and a storage facility, or LNG facility, and a natural gas pipeline to Santo Domingo.

The AES Corporation (NYSE: AES) is a Fortune 500 global power company with generation and distribution businesses. Through our diverse portfolio of thermal and renewable fuel sources, we provide affordable and sustainable energy to 29 countries.

Our workforce of 27,000 people is committed to operational excellence and meeting the world's changing power needs. Our 2009 revenues were $14 billion and we own and manage $40 billion in total assets. To learn more, please visit www.aes.com.

This report may contain forward-looking statements speculative in nature based on the information, operational plans and forecasts currently available about future trends and facts. As such, they are subject to risks and uncertainties. A wide variety of factors may cause future real facts to differ significantly from the issues presented or anticipated in this report, including, among others, changes in general economic, political, government and business conditions. In the event of materializing any of these risks or uncertainties, or if underlying assumptions prove to be mistaken, future real facts may vary significantly. AES Dominicana is not bound to update or correct the information contained in this report.

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Please address any questions or comments related to this report to Investor Relations, email address: inversoraesdom@aes.com

2Q10 Relevant Results Glossary of key terms Btu:

British thermal units of measurement. It is a unit of heat in the English European System. Its equivalence in the International System (IS) is the Calorie. The prices of Natural Gas are usually expressed in US$/MMBtu. 1 Btu is equivalent to 252 calories.

TBtu

Trillion of Btu.

CDEEE:

Corporación Dominicana de Empresas Eléctricas Estatales.

Coordinating Body:

“OC” or “Organismo Coordinador”. Whose function is to plan and coordinate the economic operations of the power providers with those of the transmission, distribution and commercialization system that form the SENI.

Deregulated Users (UNR):

The user of the electrical service which monthly demand exceeds the limits established by Superintendence in order to be classified as an unregulated user under the General Electricity Law.

DPP:

Dominican Power Partners.

EAF:

Equivalent Availability Factor

Effective Capacity: EFOR: Firm Capacity: FX:

The currently available capacity, as of any date of determination, for generation of a unit or the amount of MW that a power generation unit can reliably generate.

Equivalent Forced Outage Rate The amount of capacity assigned by the Coordinating Body to each power generation unit for being available to cover the demand in peak hours.

Foreign exchange, a banking term for changing money from one currency into another.

GDP:

The gross domestic product (GDP) is one of the measures of national income and output for a given country's economy. GDP is defined as the total market value of all final goods and services produced within the country in a given period of time (usually a calendar year).

Henry Hub:

The specific pricing point for natural gas future contracts on the New York Mercantile Exchange, or NYMEX.

Installed capacity:

The amount of MW a turbine is designed to produce upon installment (name-plate capacity).

Liquid Natural Gas (LNG):

Natural Gas processed to be transported in liquid form. It is the best alternative for transporting and storage because when transformed into liquid at atmospheric pressure and -163° C, the liquefaction process reduces the volume of gas by 600 times.

PPA:

Power Purchase Agreement.

SENI:

Sistema Eléctrico Nacional Interconectado or the National Interconnected Electrical System.

AES Dominicana, Earning Release

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