31March, 2011, Hong Kong

(HKEx�902)

2010 ANNUAL RESULTS PRESENTATION

Content

� Financial Highlights

� Business Performance

� Review and outlook

� Trend and Objectives

Increased 27.69% YoY

Financial Highlights

2010 operating results prepared under IFRS

Total assets (RMB billion)

Net assets (RMB billion)

Operating revenue (RMB billion)

Net profit (RMB billion)

Earnings per share (RMB)

227.938

53.789

104.318

3.348

0.28

Increased 15.19% YoY

Increased 35.72% YoY

Decreased 32.08% YoY

Decreased 31.71% YoY

Business Performance

� Power Generation and TariffIn 2010, total domestic power generation of the Company was 257 billion kWh, increased by 26.25% year on year.

Average utilization hours of coal-fired power units was 5,564hours for the year, 533 hours higher than national average

442559 714

9091,143

1,5051,599

1,7371,846

2,035

2,570

0

500

1000

1500

2000

2500

3000

200020012002 200320042005 20062007 200820092010

Average domestic tariffs settled for 2010 was RMB421.66/MWh, increased 1.06% over the

same period last year.

Power generation ('00 million kWh)

Business Performance (continued)

� Fuel CostsCoal

purchased for 2010

Structure (million tons)

Natural coal price Change (YOY)

Key contracts 60.28 RMB579.48/ton RMB74.84/ton

Spot market 54.54 RMB631.78/ton RMB80.49/ton

Imported 22.06 RMB663/ton -

Total 114.82 RMB605.04/ton RMB79.9/ton

The unit fuel cost of the year for domestic power plants increased by 14.72% yoy.

� Energy Saving & Environmental Protection and Technical Indicators

297.54g/kWh� Average coal consumption rate for power generated

Business Performance (continued)

315.59 g/kWh� Average coal consumption rate for power sold

95.09%� Average equivalent availability ratio

5.10%� Average house consumption rate

� Projects Commissioned

2010

Project Capital Capacity

Gansu PingliangPower Plant

65% 2�600MW

Fujian Fuzhou Power Plant

100% 1�600MW

Total -- 1800MW

By the end of March, 2011

Hunan Yueyang Power Plant

55% 1�600MW

Hebei Kangbao Wind Power

100% 49.5MW

Jiangsu Qidong Wind Power

65% 50MW

total -- 699.5MW

Business Performance (continued)

The market share of Tuas Power’s power generation is 24.7% in 2010， increasing 0.4ppt

� Business in Singapore

Sales Revenue (RMB Billion)

Profit Attributable to equity holders

(RMB Million)

15.17

691

YoY increase 44.40%

YoY Increase17.89%

Business Performance (continued)

� Acquisition of Assets

HPI

Hainan Nuclear30%

50%

total consideration

RMB1,232 million

Enables the Company to further expand the operating region and to tap into the power market of Hainan Province; consolidates our scale of economy and market position in developed southeast coastal regions; another move in nuclear business expansion after the nuclear project funded and established in Shidaowan, Shandong in 2009; improve the structure of power generating assets

Time Shipping

Provides further assurance for the coal transportation capacity of our coastal plants ; help the Company to stabilize fuel supply, expand to the upstream of the industrial chain and achieve synergy.

Business Performance (continued)

� Generation Capacity

The Company has plants in 18 provinces, municipalities and autonomous regions of China, and a wholly-owned power company in Singapore.

Till now，the controlling generation capacity was 54,402 MW, and the equity-based generation capacity was 50,935MW.

22% 7% 6%

65%

Wholly

Control

Minority

Oversea

In 2010 , the capabilities for self supply of coal, coal storage and transit and seaborne transportation continued to improve. The synergy of power coal port transportation industry has taken shape.

Fire coal

Gas

Wind power

Business Performance (continued)

� Non-public issue

1.5 billion A share

500 million H share

RMB5.57

per share

HK$4.73

per share

RMB 8.355 billion

HK$2.365 billion

Raised RMB 10.381billion

in total

Thermal power Project

Wind Power Project

Other

Business Performance (continued)

� Dividends Payout

Notes： Prepared under IFRS, in spite of the losses in 2008, the company still pay dividends per share of RMB0.10.

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0.8

1

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

Dividendsper share(unit: RMB)

Business Performance (continued)

Huaneng Power International is the only integrationplatform for its conventional energy business

� Company Commitment

HuanengGroup

commitment

The Group will take approximately 5 years to inject the conventional energy business assets, which located in Shandong Province, to HPI when the terms become appropriate.

It will take approximately 5 years to inject the other non-listed conventional energy business assets that located in other provincial administrative area to HPI when the terms become appropriate.

Business Performance (continued)

Review and outlook

� Looking back "Eleventh Five-Year Plan"

Project 2005 2010 Change

Equity generation capacity（MW）

22,253 46,512 109%

Total asset（RMB million) 99,440 227,938 129%

Revenue（RMB million) 40,370 104,318 158%

Coal consumption（gram/kWh）

337.06 315.59 -21.47

Review and outlook（Continue）

� Looking forward "Twelve Five-Year Plan"

Objective Objective in 2015

Stalled capacity（MW）

90,000

Clean energy The geneneration capacity account for 20% to 25%

Coal supplyInternal supply and long-term stable supply of coal

exceeding 40%

Other Further enhance the synergy effect of power, coal, port and transportation.

Trend and Objectives

Trend of this year

Uncertainties in the short-term economic performance

Difficulties and pressure faced by the Company in relation to stabilizing fuel supply and controlling fuel cost

Challenge side

Opportunity side

The conclusion of major power-coal contracts has provided basic assurance for the coal supply of the Company

Continuous deepening of the reform of the electricity management system and the support from national macroeconomic policies, is instrumental in the Company’s achieving the full-year task, increasing income and promoting efficiency.

Trend and Objectives (Continue)

Generation Objectives for 2011

315 billion kWh

5500 hours

Main Areas

Accelerate the construction of large-scale thermal power bases

Speed up the development of coal and power integration projects

Endeavor to increase the proportion of clean energy

Utilization of coal-fired units

Power generation

Accelerate the construction of co-generation projects

2010 ANNUAL RESULTS PRESENTATION

Powering tomorrow Powering tomorrow