主要统计指标解释
能源生产总量 指一定时期内全国一次能源生产量的总和。该指标是观察全国能源生产水平、规模、构成和发展速度的总量指标。一次能源生产量包括原煤、原油、天然气、水电、核能及其他动力能(如风能、地热能等)发电量,不包括低热值燃料生产量、生物质能、太阳能等的利用和由一次能源加工转换而成的二次能源产量。
能源消费总量 指一定时期内全国物质生产部门、非物质生产部门和生活消费的各种能源的总和。该指标是观察能源消费水平、构成和增长速度的总量指标。能源消费总量包括原煤和原油及其制品、天然气、电力,不包括低热值燃料、生物质能和太阳能等的利用。能源消费总量分为终端能源消费量、能源加工转换损失量和能源损失量三部分。
(1)终端能源消费量:指一定时期内全国生产和生活消费的各种能源在扣除了用于加工转换二次能源消费量和损失量以后的数量。
(2)能源加工转换损失量:指一定时期内全国投入加工转换的各种能源数量之和与产出各种能源产品之和的差额。该指标是观察能源在加工转换过程中损失量变化的指标。
(3)能源损失量:指一定时期内能源在输送、分配、储存过程中发生的损失和由客观原因造成的各种损失量,不包括各种气体能源放空、放散量。
能源生产弹性系数 研究能源生产增长速度与国民经济增长速度之间关系的指标。计算公式为:
能源生产弹性系数=能源生产总量年平均增长速度/国民经济年平均增长速度
国民经济年平均增长速度,可根据不同的目的或需要,用国民生产总值、国内生产总值等指标来计算,本年鉴是采用国内生产总值指标计算的。
电力生产弹性系数 研究电力生产增长速度与国民经济增长速度之间关系的指标。一般来说,电力的发展应当快于国民经济的发展,也就是说电力应超前发展。计算公式为:
电力生产弹性系数=电力生产量年平均增长速度/国民经济年平均增长速度
能源消费弹性系数 反映能源消费增长速度与国民经济增长速度之间比例关系的指标。计算公式为:
能源消费弹性系数=能源消费量年平均增长速度/国民经济年平均增长速度
电力消费弹性系数 反映电力消费增长速度与国民经济增长速度之间比例关系的指标。计算公式为:
电力消费弹性系数=电力消费量年平均增长速度/国民经济年平均增长速度
能源加工转换效率 指一定时期内能源经过加工、转换后,产出的各种能源产品的数量与同期内投入加工转换的各种能源数量的比率。该指标是观察能源加工转换装置和生产工艺先进与落后、管理水平高低等的重要指标。计算公式为:
能源加工转换效率=能源加工转换产出量/能源加工转换投入量×100%
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%