Explanatory Notes on Main Statistical Indicators
Total
Energy Production refers to the total production of primary energy by all energy producing
enterprises in the country in a given period of time. It is a comprehensive
indicator to show the level, scale, composition and pace of 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 does not include the production of fuels of low calorific value,
bio-energy, solar energy and secondary energy converted from primary energy.
Total
Energy Consumption refers to the total consumption
of energy of various kinds by the production sectors and the households in the
country in a given period of time. It is a comprehensive indicator to show the
scale, composition and pace of increase of energy consumption. Total energy
consumption includes that of coal, crude oil and their products, natural gas
and electricity. However, it does not include the consumption of fuel of low
calorific value, bio-energy and solar energy. Total energy consumption can be
divided into three parts: end-use energy consumption; loss during the process
of energy conversion; and energy loss.
(1) End-use Energy Consumption: It refers to
the total energy consumption by the production sectors and the households in
the country (region) in a given period of time. It does not include the
consumption during the conversion of primary energy into secondary energy and
the loss in the process of energy conversion.
(2) Loss During the
Process of Energy Conversion: It refers to the
total input of various kinds of energy for conversion, minus the total output
of various kinds of energy in the country in a given period of time. It is an
indicator to show the loss that occurs during the process of energy conversion.
(3) Energy Loss: It refers to the total of
the loss of energy during the course of energy transport, distribution and
storage and the loss caused by any objective reason in a given period of time.
The loss of various kinds of gas due to gas discharges and stocktaking is not
included.
Elasticity
Ratio of Energy Production is an indicator to show the relationship between the growth rate of
energy production and the growth rate of the national economy. The formula is:
The average annual growth rate of the
national economy can be measured by indicators such as the Gross National
Product and the Gross Domestic Product, depending on the purposes or needs. The
Gross Domestic Product has been used in the calculation of the ratio in this
Yearbook.
Elasticity
Ratio of Electricity Production is an indicator to show the relationship between the growth rate of
electricity production and the growth rate of the national economy. Generally
speaking, the growth rate of electricity production should be higher than that
of the national economy.
Its 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:
Elasticity
Ratio of Electricity Consumption is an indicator to
show the relationship between the growth rate of electricity consumption and
the growth rate of the national economy. The formula is:
Efficiency
of Energy Processing and Conversion refers to the ratio of the total output of energy products of various
kinds after processing and conversion to the total input of energy of various
kinds for processing and conversion in the same reference period. It is an
important indicator to show the current conditions of energy processing and
conversion equipment, production technique and management. The formula is:
Energy
Consumption per Unit of GDP refers to the energy consumption per unit of Gross Domestic Product in a
country or the Gross Regional Product in a region in the same reference period.
The formula is:
Electricity
Consumption per Unit of GDP refers to the electricity
consumption per unit of Gross Domestic Product in a country or the Gross
Regional Product in a region in the same reference period. The formula is:
Energy
Consumption per Unit of Industrial Value-added refers to the energy consumption per unit of industrial value-added in a
country or region in the same reference period. The formula is:
