简要说明

Brief Introduction

I. Main Contents

Data in this chapter cover mainly energy production, consumption, and composition; elasticity ratio of energy production and consumption; overall balance sheet of energy and balance sheets by different types of energy; consumption of energy by sector and by types of energy; efficiency of energy processing and conversion; and the consumption of energy for non-production uses. Since 2005, indicators like energy consumption per unit of GDP are also included.

II. The Scope of Data

The scope of data in this chapter is the whole country.

III. Sources of Data

Data in Table 7-1 are calculated on the basis of statistics on output of industrial products; data in Table 7-14 come from the Association of Power Generation Enterprises; and data in other tables in this chapter are from the energy balance sheets over the years.

IV. Notes on Coverage and Compilation of data

(1) The data on production of primary energy are the same as the corresponding data on industrial statistics.

(2) The elasticity ratio of energy production is calculated as the quotient of the growth rate of energy production divided by the growth rate of GDP; and the elasticity ratio of energy consumption is calculated as the quotient of the growth rate of energy consumption divided by the growth rate of GDP.

(3) In the energy balance sheet, data on imports and exports are from Customs statistics. The refueling by Chinese ships and airplanes abroad is included in imports. The refueling by foreign ships and airplanes in China is included in exports. The coefficient for conversion of electric power into the standard coal equivalent is calculated according to the average consumption of coal for generating electricity.

(4) In the table on the efficiency of energy conversion, the coefficient for the conversion of electric power into the standard coal equivalent is calculated on the basis of the heat value equivalent. One kilowatt is equal to 0.1229 kg SCE.

(5) Gross domestic product and industrial value-added are calculated at 2005 prices.

(6) The statistical coverage of energy consumption per unit of industrial value-added is all State-owned and non-State-owned industrial enterprises with annual revenue from principal businesses of over 5 million yuan.