With the deepening of the two alternative, especially the "pole" and the continents large-scale energy base development, to electricity as the center, the global allocation of clean energy development pattern is gradually taking shape, the global power flow size and transmission distance significantly improved.
The global power flow layout ideas and principles
Global electric power flow involves many factors such as technology, economy, resources and environment, which involves energy production, consumption and regional distribution. In the study of the global electric power flow layout should adhere to the "four principles", "three overall".
Four principles: first, the principle of low carbon development, the world's major countries have set up to renewable energy as the leading low-carbon development goals. Two is the local priority principle, the energy resources in every continent in the reliability, economy, and the cross continent into the power compared to the usual advantages, priority should be given priority. Three is the principle of economic efficiency, to take into account the development costs and transportation costs of renewable energy base, according to the comparison of the results of the optimization to determine the size and direction of cross continent transmission. Four is the principle of technical feasibility, the global grid interconnection design, cross-border / trans Asian contact and transmission channels should avoid crossing the mountains, long-distance cross sea and other paths.
Three overall: one is to consider the development of centralized and distributed clean energy. Two is the overall consideration of the local and remote clean energy development. Three is the overall consideration of the continent's power balance and intercontinental energy complementary. First of all, it is clear that the main power in the world is affected by the market space, and the supply capacity and supply cost of the global clean energy base are clearly defined. On this basis, the development and utilization of renewable energy resources, which are based on the local conditions, and then consider the path and power supply of large renewable energy base, and then determine the size of the global power flow, the power supply and demand balance of power supply and distribution and the scale.
Global power supply overall situation
Future, with the development and utilization of cost, low carbon clean and safety requirements to promote, traditional fossil energy use internal and external costs will show a rising trend. And wind, solar and other renewable energy with the increase of the size of the use of its power generation costs are rapidly declining trend. Fossil energy and renewable energy power generation cost curves in the future after a certain period of time, renewable energy power generation utilization cost will be lower than fossil energy. It can be predicted that renewable energy will become the main power generation equipment, not only to meet the global demand for electricity consumption, but also to meet the traditional fossil energy generating units after the installation of space.
From the use of fossil energy, the construction and maintenance costs will remain the most important renewable energy, but with the development of high quality resources, the development and transportation costs will continue to rise; the development and transportation costs will continue to rise; the development and transportation costs will continue to rise; the development and transportation costs will continue to rise; marine energy generation costs will continue to rise.. The cost of generating electricity is increasing, and there is a small problem in the field of biomass power generation, such as the collection and supply of fuel, the competition in the way of fuel utilization.
In the long run, with the decline in the cost of power supply, solar energy and wind energy will dominate the structure of the power supply.
Global power flow development trend
Pole together "energy base power to send, power exchange between adjacent Delta and delta in large-scale energy base in the delta balance consumptive, to form the overall layout of the global power stream and for the future of global sustainable energy development is the key.
"Pole" renewable energy base power sent flow in the future, the overall presentation of the "Arctic region south of radiation, the equatorial region to the north to south," the radiation characteristics. The total demand for electricity in Asia is big and the demand for the development of renewable energy is urgent. North American wind energy, solar energy, water resources are very rich, the basic can meet the power needs of the future of the continent.
2030 years ago, the global electric power flow across the continents and the distance of the North Africa, the European priority to carry out cross continent networking, but the power flow across the continent is not large, in the initial stage of development. Energy demand of years, with the further development of clean energy power generation technology and transmission technology is mature, "the pole as a" renewable energy power base into the large-scale development phase. To "pole together and continents clean energy base as the core, the formation of global power grid interconnection, clean energy worldwide configuration pattern.
Source: National Grid