Green energy, also known as clean energy, is a symbol and synonym for environmental protection and good ecosystems.
It can be divided into two concepts: narrow sense and broad sense.
Green energy in the narrow sense refers to renewable energy sources, such as water, bioenergy, solar energy, wind energy, geothermal energy and ocean energy. These energy consumption can be restored after the supplement, rarely produce pollution.
The broad green energy includes energy, such as natural gas, clean coal and nuclear energy, which are low or pollute in the ecological environment in the process of energy production and consumption.