China's power energy is mainly composed of thermal power, hydropower, nuclear power and new energy. It is a coal-based multi-energy complementary power energy production system. China's coal consumption accounts for 27% of the world, and its carbon dioxide emissions ranks second in the world after the United States, and it is one of the world's rare coal energy consumers. In September 2015, the "Science and Technology Forum on the Ecological Function of Small Hydropower" solemnly proposed that small hydropower is an important clean and renewable energy source. According to statistics, as of the end of 2014, China's small hydropower development rate was about 41%, much lower than that of developed countries in Europe and the United States.
At present, China's small hydropower installed capacity is about 100 million kilowatts, and its annual power generation is about 300 billion kilowatt-hours. If there is no small hydropower, China will rely more on fossil energy, which is bound to save energy resources, reduce greenhouse gas emissions, and reduce the environment. The air pollution, improving the ecological environment, optimizing the energy strategic layout, saving power transmission resources and reducing power loss, helping poverty-stricken mountainous areas out of poverty, promoting local economic development and promoting the progress of small hydropower in the world have caused huge losses.
1.Will lose the best quality renewable energy
Various indicators of hydropower are not only far superior to traditional fossil energy and nuclear energy, but also far superior to various new energy sources such as wind energy and solar energy. In hydropower, various indicators of small hydropower are superior to medium and large hydropower. Therefore, among all the energy sources, small hydropower is currently the best quality energy source
2.Will waste a lot of coal resources and human resources
The cumulative generation of small hydropower in rural areas exceeds 1 trillion kWh, which is equivalent to saving 320 million tons of standard coal. That is, the average annual power generation is more than 200 billion kWh, which not only saves more than 64 million tons of standard coal annually, but also saves these coals. Energy required for mining, transportation and storage
3.Will greatly increase greenhouse gas emissions and environmental pollution
From 2003 to 2008, the pilot project of small hydropower generation fuel and the expansion of the pilot work have enabled more than 800,000 farmers to achieve small hydropower generation fuel, protecting 3.5 million mu of forest area. It can be seen that the ecological benefits of small hydropower are significant, and the reduction of polluting gas emissions and environmental pollution have a huge effect.
4.Will greatly increase the investment in infrastructure and weaken the ability of electric energy to resist wars and natural disasters
In the 2008 snow and ice disaster and the Wenchuan and Yushu earthquakes, small hydropower's emergency power supply capacity was outstanding, becoming the "last match" to light up the regional power grid. Those cities and villages that have escaped from the large power grid and are in the dark rely on small hydropower to maintain power security and support anti-ice and earthquake relief, which proves that rural small hydropower has an irreplaceable response to emergencies such as natural disasters and war threats. effect.
To sum up, small hydropower is the most efficient, cleanest and greenest renewable energy.