What are the reasons for the low effective utilization of energy in China

The main reason for this gap is outdated equipment, backward technology, coupled with poor management and a lot of waste. Therefore, China should continue to improve the effective utilization of energy, not only to focus on transforming technology, improve the process, but also to strengthen energy management, improve the energy system.

Energy utilization efficiency is a comprehensive index to measure the technical level and economy of energy utilization. Through the analysis of energy efficiency can help improve the enterprise's technology and equipment, tap the potential for energy saving, improve the economic effect of energy use.

Energy utilization efficiency refers to the degree to which the energy available in energy is effectively utilized. It is usually expressed as η, and its calculation formula is as follows:

η=(effectively utilized energy/supplied energy) X 100%=(1-lost energy/supplied energy) X 100%

The methods of calculating energy utilization efficiency vary for different objects.

Expanded Information

Calculation Method by Energy Development to Utilization

The energy from extraction, processing, conversion, transportation, storage to the final use of the energy is divided into four processes, respectively, the efficiency of each process is calculated, and then multiplied to obtain the total energy utilization, that is

China's low efficiency of energy utilization. Energy saving potential is huge. China's energy efficiency, including processing, transportation and use, only about 32%, more than 10 percentage points lower than the advanced countries, if multiplied by 32.1% of the efficiency of energy extraction, the total energy efficiency is only 10.3%, less than 1/2 of the advanced countries.

China's main energy-using products, energy consumption per unit of product than the advanced countries is 25% -90% higher than the weighted average of 40% higher. 40%. According to the "Ninth Five-Year Plan" energy saving plan, China's recent energy saving potential of 400 million tons of standard coal.

Assuming that the economic structure, production layout and resources and other factors remain unchanged, relying only on improving technology and equipment and technology management level, its energy-saving potential can also be used in the following way to estimate grates.

Set E0 and E1 for the base year and comparison year energy consumption, η0 and η1 for the base year and comparison year energy efficiency, △ E for energy savings, △ E' for the incremental energy consumption. Estimation should take into account the energy consumption and the required effective energy with economic development and growth, this time the energy savings △E should be defined as:

Compare the effective energy of the year η1E1 according to the efficiency of the base year discounted energy η1E1/ η0 and compare the difference between the actual amount of energy inputs in the year E1, i.e., because of the, so the above formula can be written as if the base year to the comparison of the year of the calculation period of n years, the energy savings in each year is Energy for each year, then the total energy savings of n years

In addition to the above energy efficiency to measure the technical level of energy utilization and economy, usually also used the so-called "energy consumption coefficient" to evaluate the advantages and disadvantages of energy utilization. Energy consumption coefficient refers to a year or a period, in order to realize the national economic output, the average amount of energy consumed, the expression is

Energy consumption coefficient =

Energy consumption coefficient =

Equation E - energy consumption, kg of standard coal;

M - the same period of gross national product, yuan or dollars. - GNP for the same period, yuan or dollars (compared with foreign countries).

This shows that the coefficient of energy consumption is an indicator to examine the effective utilization of energy from the whole social and economic benefits.

Baidu Encyclopedia - Energy Utilization Efficiency

Baidu Encyclopedia - Energy Utilization Efficiency