Energy conservation and emission reduction refers to reducing energy waste and reducing exhaust emissions. China's "Eleventh Five-Year Plan" outlines that during the "Eleventh Five-Year Plan" period, the energy consumption per unit of GDP will be reduced by about 20%, and the total discharge of major pollutants will be reduced by 10%. This is an important measure to implement Scientific Outlook on Development and build a harmonious socialist society. It is an inevitable choice for building a resource-saving and environment-friendly society; It is the only way to promote economic restructuring and change the growth mode; It is an inevitable requirement for safeguarding the long-term interests of the Chinese nation.
The ideal form of low carbon economy is to fully develop sunshine economy, wind energy economy, hydrogen energy economy, ecological economy and biomass energy economy. But at present, the cost of solar power generation is 5- 10 times that of coal-fired hydropower, and the price of wind power generation in some areas is higher than that of coal-fired hydropower; As a secondary energy, hydrogen energy is far from the commercialization goal of extracting clean energy such as wind energy and solar energy. Developing biofuels at the expense of consuming a large number of grain and oil crops has caused the prices of grain, meat and edible oil to rise to some extent. Globally, it is estimated that solar power generation will only reach 65,438+00% of the world's electricity supply by 2030, and the world's proven oil, natural gas and coal reserves will be exhausted in the next 40 years, 60 years and 65,438+000 years respectively. Therefore, one of the important meanings of "low-carbon economy" and "low-carbon life" is to save fossil energy consumption and provide time guarantee for the popularization and utilization of new energy in the next few decades when "carbon fuel civilization era" is in transition to "solar energy civilization era" (wind energy and biomass energy are both conversion forms of solar energy). Especially from the energy structure of China, low carbon means energy saving, and low carbon economy is based on low energy consumption and low pollution.
"Give up hobbies! The theme of Low-carbon Economy Environment Day reminds people that "low-carbon economy" not only means that the manufacturing industry should speed up the elimination of backward production capacity with high energy consumption and high pollution, but also means guiding the public to reflect on which habitual consumption patterns and lifestyles are bad habits of wasting energy and increasing pollution, so as to fully tap the great potential of energy conservation and emission reduction in the service industry and consumers' lives.
One of the important ways to turn to low-carbon economy and low-carbon lifestyle is to get rid of the hobby of "convenient consumption" at the expense of high energy consumption. Convenience is a universal value in modern commercial marketing and consumer life. Many convenient consumption methods are inadvertently wasting huge energy. For example, according to the estimation of refrigeration technology experts, 70% of the electricity consumption of supermarkets is used for freezers, while the electricity consumption of open freezers is 20% higher than that of glass door freezers. Based on this calculation, an open freezer in a medium-sized supermarket consumes about 4% more than a year. 80,000 kWh, equivalent to consuming about 19 tons of standard coal, emitting about 48 tons of carbon dioxide and consuming about190,000 liters of clean water. There are about 800 large and medium-sized supermarkets and 6000 supermarket convenience stores in Shanghai. If glass door freezers are widely used in large and medium-sized supermarkets, customers can save about 452 10000 kWh a year, which is equivalent to saving about 1. 80,000 tons of standard coal, reducing emissions by about 4. 50 thousand tons of carbon dioxide