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Good day sunshine

By Sun Xiaohua (China Daily)
Updated: 2008-05-12 10:35

The humble four-story white office building is nondescript amid gleaming skyscrapers in Beijing's central business district. However, it is the pride and joy of Han Jiangong as a showcase for his solar technology business.

Han is board chairman of Beijing Solar Energy Research Institute Co Ltd, which has two brands - Sunda, which targets the international market, and Sunpu for the domestic market. And the building is also his workplace.

Solar energy can meet most of the demands for power, heating and cooling the building's 3,000 sq m of floor space.

In sunny days, the photovoltaic equipment covering 1,000 sq m of the roof can produce about 100 kilowatts of electricity, enough for the building's lighting and computer needs.

In winter, the solar heating system can provide Han's staff with hot water and warmth, while in summer, the cooling system powered can adjust the indoor temperature to 26 C, which is required by the country as part of the national energy-saving campaign.

"The building comprises almost all advanced technology making use of solar energy," he says. "But it is far from enough to show China's solar technology development to the world."

In 2008 he has more ambitious showcases, which are part of landmark constructions in the capital - solar power equipment in Olympic village and Terminal 3 of the Beijing Capital International Airport.

Sunpu has equipped more than 5,000 sq m of solar energy facilities in stadiums for the Olympic Games as well as its adjunct facilities since 2006.

In the Fengtai Sports Center Softball Field, Chaoyang Park Beach Volleyball Ground, Peking University Gymnasium and news center for the Games, Sunpu solar-powered facilities can be seen outside the builidings providing athletes and others inside with hot water, as well as electricity and cooling services.

Take solar-heated water for example. Figures show that every day, about 800 tons of warm water heated by Sunpu solar hearting systems will be provided for showers for more than 16,000 athletes from around the world during the Games period.

And in Terminal 3 at the Beijing Capital International Airport, the new terminal building which began full-scale service in March for 26 international airline companies worldwide, accounts for 60 percent of the airport's business, Sunpu has built 4,000 sq m of solar heating system which can produce a maximum of 315 tons of hot water daily for the terminal's kitchen.

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