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Limited fossil fuels
In 2006, the quantity of coal in China is 1.03 trillion tons, the rest proven coal reserves is about 13% of the world’s total reserve, and we rank No. 3.
The renewable energy ordinance made the target to consume renewable energy 10% of total energy till 2010, and 15% till 2015.However, the fossil fuels are estimated to be used up in next 46 years, and people are searching for new energies, especially renewable energies.
Around a third of the energy we consume is supplied as electricity. Today we rely on fossil fuels for 79% of our primary energy requirements and 67% of our electricity requirements. In the electricity market, hydroelectric power provides around 16% of our needs and biomass around 1%. The contribution of all other renewable energy sources, such as wind, solar, marine and geothermal energy – to world electricity supplies is a paltry 1%. (Source: Alternative Energy Note 2007)
Global Primary Energy Scenario (Source: Solarwirtscharft)
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Free solar energy source
Our lands receive large amount of solar radiation and power annually without costs, the energy is equal to 5900 MJ per square meters; over two thirds of China has daylight time longer than 2000 hours per year.
By 2100, solar energy will contribute to 80 % of total energy production as the world’s future energy demand cannot be met by fossil fuels.
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Environmental friendly
All the solar applications need are solar modules and sunlight, no burning, no CO2, no sulfur gas. The worry of global warming could be reduced, as the carbon emission offset is calculated at approximately 7.5 tons of CO2 over the twenty-five year guaranteed life of one PV module
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New technologies drives costs
lower
The conventional production process needs crystalline silicon, and the costs are closely correlated with the price of silicon. As a result of emerging requirement for silicon, the price soared in past years. However, the thin-film technology makes the modules half of the costs of crystalline ones, with less materials but more electricity generated, compared with traditional products.
Cost down trend of solar cells
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Government incentives
In order to encourage solar installations, some countries such as Germany and Japan, the two most solar wide spread countries, has provided some tariff reduction or reductions to solar applicants. China has passed the law of Renewable Energy, insisting the development of renewable energy, the more detailed policy of subsidies and allowances are still being discussed. |
