Explanatory Notes on Main Statistical Indicators

Total Energy Production　refers to the total production of primary energy by all energy production enterprises in a country or region in a given period of time. It is a comprehensive indicator to show the capacity, scale, composition and development of energy production of the country. The production of primary energy includes that of coal, crude oil, natural gas, hydro-power and electricity generated by nuclear energy and other means such as wind power and geothermal power. However, it excludes the production of fuels of low calorific value bio-energy, solar energy and the secondary energy converted from the primary energy.

Total Domestic Energy Consumption　refers to the total consumption of energy of various kinds by material production sectors, non-material production sectors and households in a country or region in a given period of time. It is a comprehensive indicator to show the scale, composition and development of energy consumption. The total energy consumption includes that of coal, crude oil and their products, natural gas and electricity. However, it excludes the consumption of fuel of low calorific value, bio-energy and solar energy. Total domestic energy consumption can be divided into three parts: final energy consumption, loss during the process of energy conversion and loss.

Volume of Terminal Energy Consumption　refers to volume of various of energy consumption for production and living in a country or region during a giving period after deducting the volume consummated in processing secondhand energy and the volume losing.

Volume of Energy Lost by Processing and Conversion　refers to balance between volume of various of energy put into processing and conversion and output volume of energy in one country or area in certain period, and it is an indicator to carrying out observations at changes of volume of energy lost in processing and conversion.

Volume of Energy Los　refers to various of volume of energy lost in transporting, distributing and storing and for objective causes in one country or area in certain period, excludes discharged volume of various of gas energy.

Elasticity Ratio of Energy Consumption　is an indicator to show the relationship between the growth rate of energy consumption and the growth rate of the national economy. The formula is:

Elasticity Ratio of Energy Consumption　is an indicator to show the relationship between the growth rate of energy consumption and the growth rate of the national economy. The formula is: