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:
