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Global Status Analysis Of Distributed Energy Industry In 2018 The Distributed Energy Sources Of Various Countries Develop Steadily
- Apr 24, 2018 -

Global Status Analysis of Distributed Energy Industry in 2018 The distributed energy sources of various countries develop steadily

Global Distributed Energy Development Status

Distributed energy refers to the integrated energy utilization system distributed on the user side. It is a system that determines the configuration and capacity of the unit based on the optimization of resources, environment, and economic efficiency. It pursues the maximization of the terminal energy utilization efficiency, adopts demand-responsive design and modular assembly configuration, can meet a variety of energy needs of users, and can optimize the integration of supply and demand for resource allocation. Distributed energy currently covers natural gas, biomass, solar, wind, ocean energy and other forms of energy.

According to DER technology report data, the global installed capacity of distributed energy in 2017 was approximately 132.4 GW. It is expected that by 2026 this figure will increase to 528.4 GW.

Global Status Analysis of Distributed Energy Industry in 2018 The steady development of distributed energy sources in various countries

Although the newly-added installed capacity of global distributed energy in 2017 has decreased compared to the previous year, distributed energy will surely occupy a place in the future energy system. Therefore, understanding the development context of distributed energy in different countries will help to improve China's distribution. Energy development planning.

Major US distributed energy planning ratio

The United States distributed generation methods include natural gas cogeneration, small and medium hydropower, solar energy, wind energy, biomass energy, and waste power generation. The total installed capacity of combined heat and power accounts for more than 15% of the country's total electricity generation. Among them, natural gas combined heat and power is the main source, with an annual generating capacity of 160 billion kilowatt-hours, accounting for 4.1% of the total power generation. The US Department of Energy is actively promoting natural gas-fueled distributed energy systems, using these systems as the basis for the development of microgrids, and the development of microgrid connections as a smart grid.

Prospective Industry Research Institute "China's distributed energy industry market prospects and investment strategic planning analysis report 2018-2023" data show that the United States cogeneration technology to internal combustion engines, steam turbines, gas turbines based, about 46% of the cogeneration project Small internal combustion engines, gas-steam combined cycle accounted for 8% of the project, accounting for 53% of the total installed capacity of distributed generation.

Global Status Analysis of Distributed Energy Industry in 2018 The steady development of distributed energy sources in various countries

By 2020, distributed power generation in the United States will become a model for the efficient use of fossil energy in commercial buildings, and the adjustment of energy systems will greatly promote economic growth and improve the quality of life of residents, while minimizing the emission of pollutants.

Japan's distributed energy is mainly based on cogeneration

Japan's distributed generation is mainly based on cogeneration and solar photovoltaic power generation. Its commercial distributed power generation projects are mainly used in hospitals, hotels, public recreational facilities, etc.; industrial distributed power generation projects are mainly used in chemical industry, manufacturing, electricity, Steel and other industries.

In terms of photovoltaic power generation, Japan's photovoltaic distributed generation is widely used not only for public facilities such as parks, schools, hospitals, and exhibition halls, but also for demonstration projects of photovoltaics for residential houses.

According to the forecast of Japan's Ministry of Economy, Trade and Industry (METI), by 2030, the installed capacity of Japan's cogeneration capacity will probably reach 16.3 million kilowatts, of which 6319 are commercial distributed generation projects and 7473 industrial distributed generation projects. Japan plans to generate 20% of the total electricity supply by 2030 before the distributed energy system.

Denmark's highest level of distributed energy development

Denmark is the most energy efficient country in the world. The increase in GDP did not result in an increase in energy consumption. Instead, pollution emissions dropped drastically. The main measure was to develop distributed energy. More than 80% of district heating energy in Denmark is produced by co-generation, distributed generation exceeds 50% of total generation capacity, and the total installed wind power distributed to low-voltage distribution networks exceeds 3 million kilowatts.

The development direction of Denmark's cogeneration technology is one of scale, and the second is to change the fuel of regional district heating plants from coal to natural gas, garbage, and biomass energy.

In addition, Denmark will also actively support powerful companies and remote areas to build their own regional heating and power generation projects. There are a total of eight interconnected cogeneration regions in Denmark. The technical level can achieve a coal/electric conversion efficiency of more than 50%; together with heating considerations, the total efficiency can reach over 90%. A growing number of cogeneration plants in densely populated areas use natural gas as fuel, and their thermoelectric efficiency indicators are slightly higher than coal-fired technologies.

German photovoltaic power generation is mainly distributed

Germany is one of the most successful countries in the world in promoting distributed photovoltaic generation. However, the conditions for lighting resources in Germany are not very good. The average annual effective utilization hours is only about 800 hours. At the same time, it is limited by land use, power grid structure, etc. Photovoltaic power generation is mainly distributed. As of the end of 2017, the installed capacity of photovoltaic power generation in Germany The capacity reaches 41.7GW, and the main application form is the rooftop photovoltaic power generation system.

Global Status Analysis of Distributed Energy Industry in 2018 The steady development of distributed energy sources in various countries

The United States, Europe, and Japan promote smart grid construction based on advanced distributed generation, provide a free access dynamic platform for various distributed energy sources, provide an intelligent control and management platform for energy-saving and demand-side management, and make effective use of natural gas cooling. Coordinated heat and power supply cascades; provide support for the use of small hydropower resources, biomass resources, renewable energy sources, and clean recycling of various waste resources to increase the supply of electricity and other energy for local conditions.

It is these energy cascade utilization systems, renewable energy systems, and comprehensive resource utilization systems that are attached to the user terminal market. Their energy use efficiency has been continuously improved, emissions have been reduced, and the energy structure has been continuously optimized.