What are the methods of energy statistical analysis?

Statistical analysis of energy to use a variety of methods, the energy economic operation of a comprehensive, systematic, quantitative to qualitative analysis and research, analysis and generalization. Commonly used analytical methods are: 1, statistical grouping method. Statistical grouping method is a basic method of exposing the internal contradictions of things. This grouping method is a large amount of statistical information in accordance with the grouping signs, the different nature of the phenomenon of grouping, the same phenomenon is summarized together, grouping of the correct or not, directly affecting the effectiveness of statistical analysis. Analysis of energy consumption, the general use of this grouping method is more, according to the industry grouping, according to the direction of use grouping. Grouped by use, etc. 2, comparative analysis. Comparative analysis, also known as comparative analysis, is an important method of understanding things, but also the basic method of statistical analysis. This method combines the interlinked indicators for comparative analysis, so as to evaluate the socio-economic phenomena, to find problems. Expose contradictions and promote the development of objective things. There are many ways of comparison, such as vertical comparison, horizontal comparison, point and surface comparison. Vertical comparison, i.e. dynamic comparison, is the comparison between the present and the past, such as the comparison between the reporting period and the base period, and the comparison with the historical level, and the horizontal comparison, i.e. static comparison, is the comparison between the units, between the regions, between the countries, and between the plan and the actual comparison. Point and surface comparison, is individual and general, local and global, specific facts and the larger context of the comparison. When comparing and analyzing, it is necessary to carefully check whether the content, caliber, calculation method and measurement unit of relevant indicators are consistent and comparable. Energy economic efficiency analysis using comparative analysis method is more. Such as energy consumption per unit of product, energy consumption per unit of output value, energy utilization rate, energy saving rate, etc., can be compared dynamically, such as with the reporting period and the base period than, compared with the best level in history, compared with the advanced level. It can also be compared between regions, between similar enterprises, and with foreign comparisons. 3、Structural analysis method. Structural analysis method is to break down the overall thing into various components, through the calculation of the structure of the relative indicators to study the composition of the factors within the overall and its trend of change, so as to better understand the overall special nature of the parts of the overall thing and its position in the overall. It takes the overall total as the standard of comparison and finds the proportion of each sector in the total, expressed as a percentage. It is very important to analyze the structure of the total amount of energy resources, production, consumption, energy saving and inventory. Such as the total amount of regional energy resources by the region's production, transfer from other provinces, imports and other components, through the structure of the comparison can analyze the degree of self-sufficiency, the organization of sources of supply, to ensure that the supply of energy demand plays an important role. Structural analysis of the composition of total energy consumption can be used to analyze the composition of energy varieties, industry consumption composition analysis, regional consumption composition analysis, composition analysis of the direction of use and so on. By observing the overall internal composition, the phenomenon of profiling, you can further analyze the main aspects of the development of things affecting the main aspects and secondary aspects, so as to have a deeper understanding of the essential characteristics of things. 4, dynamic analysis. Dynamic analysis is from the point of view of development to analyze and study the process of development and change of things, trends and their regularity of an analytical method. The things to be analyzed will be relevant indicators of digital, arranged in time sequence, forming a dynamic array, from the quantitative aspects of the development of things to observe the direction and speed of change, the study of its development and change of the trend and regularity. The so-called dynamic, is the development of social and economic phenomena in time. Dynamic analysis, can use a variety of methods, such as parallel series comparison method, expanding the period analysis method, moving average analysis method, seasonal variation analysis method, trend forecasting method and so on. Dynamic series can be divided into the absolute amount of indicators of dynamic series, relative refers to the dynamic series and average indicators of dynamic series. Absolute amount of indicators of dynamic series is composed of the absolute amount of each period. Such as the period of energy production, energy consumption, energy savings, energy stocks and other absolute indicators of the dynamic series. Relative indicators of dynamic series, is composed of the relative number of the period. Such as the energy saving rate, energy utilization rate, energy self-sufficiency rate, energy processing and conversion loss rate and other relative indicators of the dynamic series. Average indicator dynamic series is composed of the average of each period. Such as the amount of energy consumption per unit of product, the amount of energy consumption per unit of output value, per capita energy consumption and other average indicators of the dynamic series. In the dynamic array, the absolute amount of indicators of dynamic array is the most basic, relative indicators and average indicators are derived from the absolute amount of indicators. 5, factor analysis method. Factor analysis is the total change of socio-economic phenomena, analyze the direction of the impact of the factors, the degree of causality and a method of cause and effect. The main points are: (1) factor analysis of the research object is affected by a variety of factors. The amount of such phenomena is expressed as the product of a number of factors, the purpose of which is to determine the direction and degree of influence of each factor, including the determination of the degree of influence of structural change. (2) The basic feature of the factor analysis method is to measure the direction and degree of influence of one of the factors by assuming the same number of other factors. In the case of three factors, it is assumed that two of the factors are equal in number and the influence of the other factor is measured. (3) The index system is the basic basis of the factor analysis method. The product of a number of factors index should be equal to the total change index, a number of factors should be equal to the sum of the total difference in the impact of the actual total difference. Factor analysis is widely used in energy statistical analysis, can be used to analyze the state of the energy system, such as changes in the energy system affecting the analysis of economic, technological, social, demographic, regulatory and other factors; can also be used to analyze a certain side of the energy system, such as the impact of energy savings on a variety of factors to analyze the analysis of the first analysis due to the adoption of technological innovation, improve product quality, improve the utilization of energy, strengthen scientific management and other measures, the direct impact on the energy system, and to improve the energy system. Strengthen the scientific management and other measures, the degree of impact on direct energy saving. Then analyze the degree of impact on less energy (indirect energy saving) due to the adjustment of product structure, industry structure, economic structure, reduce raw material consumption and other measures. Conversely, it can also analyze the degree of impact due to technological backwardness, production and management mismanagement, low energy utilization, product structure and economic structure is unreasonable and other factors, the formation of energy consumption in the process of waste. 6, balance analysis. Balance analysis is the study of objective economic phenomena exist in the number of constituent elements of the quantitative links and quantitative reciprocal relationship of an analytical method. This method of unity of all aspects of the opposites are arranged separately, easy to compare and contrast, easy to comprehensively observe and find problems. Balance analysis method is characterized by: (1) reflecting the economic phenomenon within a variety of constituent factors to ask the quantitative equivalence of the relationship. (2) The use of a number of interconnected indicators of quantitative relationships, to analyze the social and economic phenomena within the balance of the proportionality of the relationship. (3) Starting from the totality of the phenomenon, using comprehensive information, and observing and studying things through the presentation of balanced tables. Adopting this method for energy statistical analysis, the first thing to do is to compile a good energy balance sheet. Through comprehensive and systematic energy balance statistics, you can analyze the whole picture of the energy system process and each link. ① Comprehensive analysis of the whole process of energy system flow. Study the scale, level, speed, proportion, law and other conditions of energy economic development, observe the balance between the various links of the energy system process proportionality, reveal the contradictions between energy demand, to find out the reasons for the balance and imbalance. ② Analyze the formation of energy resources and the degree of self-sufficiency. Study the scale of energy production, put forward proposals to increase or reduce the import and export of energy, and rationalize the arrangement of transferring out and withering in. (iii) Analyze the situation of energy processing and conversion. Study the efficiency of energy processing and conversion, put forward to reduce the loss rate of energy processing and conversion, and improve the energy utilization rate of the recommendations and measures. ④ analyze the energy consumption situation. To study whether the energy consumption structure is reasonable, the coordinated relationship between energy consumption and national economic development, and to reveal the loss and waste of energy use. ⑤ Analyze the situation of energy economic efficiency. It studies the degree of effective utilization of energy, explores the potential of energy saving, reveals the outstanding problems of low economic efficiency of energy, and puts forward suggestions and measures for the rational and effective utilization of energy. (6) Analyze the rationality of energy storage. Research on the composition of energy stocks and the degree of guarantee for production, construction and people's lives, revealing the reasons and consequences of overstocking or understocking.