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:
