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
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 the country 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 energy loss.
(1)Final Energy Consumption: It refers to
the total energy consumption by material production sectors, non material
production sectors and households in the country (region) in a given period of
time, but excludes the consumption in conversion of the primary energy into the
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
excluded.
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:
Elasticity Ratio of Energy Production =
Average Annual Growth Rate of Energy Production / Average Annual Growth Rate of
National Economy
The average annual growth rate of the
national economy can be shown by the gross national product, gross domestic
product and other indicators, depending upon the purposes or needs. The gross
domestic product is used in calculation of the ratio in this chapter.
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 Electricity Production =
Average Annual Growth Rate of Electricity Production / Average Annual Growth
Rate of National Economy
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 =
Average Annual Growth Rate of Energy Consumption Average Annual Growth Rate of
National Economy
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:
Elasticity Ratio of Electricity Consumption
= Average Annual Growth Rate of Electricity Average Annual Growth Rate of
National Economy
Efficiency of Energy Processing and
Conversion refers to the ratio of the
total output of energy products of various kinds after processing and
conversion and 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:
Efficiency of Energy Processing & Conversion = (Output of
Energy After Processing & Conversion / Input of Energy for Processing &
Conversion)×100%