It can be divided into three phases.
From now on to 2020. Promote the interconnection of national grids in various countries. Main tasks: promote consensus, carry out technological and standard research, strengthen interconnection of national grids and smart grid construction, and develop clean energy within countries.
Till 2030. Promote grid interconnection among countries within the continent. Main tasks: transnational grid interconnection and develop clean energy bases within the continent.
Till 2050. Promote transcontinental grid interconnection. Main tasks: construct transcontinental UHV backbone grids, develop energy bases in the Arctic and the Equator, and the global energy interconnection is basically come into being.
PHASE ONE: DOMESTIC INTERCONNECTION
Construct strong power grid. Choose suitable power voltage levels and AC/DC transmission technologies with consideration of national energy endowment. Speed up the upgrade of existing grids, optimize the grid structure, and promote domestic interconnection. Improve the safety, stability and allocation capability of power grid to support transnational and transcontinental clean energy allocation. Make power grid smarter. Popularize the application of smart power transmission and transformation, smart power distribution and consumption as well as IT technologies. Operate power conservation and other value-added services. Develop domestic clean energy and distributed generation. Accelerate the development of large-scale clean energy bases in the country and make distributed generation able to integrate into or disconnect from the power grid flexibly and ready to use once connected.
PHASE TWO: TRANSNATIONAL INTERCONNECTION
Asia: there will be an Asian energy interconnection consisted of power grids in Northeast Asia, Central Asia, Southeast Asia, South Asia and the Middle East, connecting power grids of North America in the east, grids of Europe and Africa in the west, grids of Oceania in the south. By 2050, Asia will have 29,000TWh of centralized generation and 4,500TWh of distributed generation, and import 4,700TWh of electricity from the Arctic and Equator.
Europe: it will have three horizontal and three vertical backbone grids in Europe connecting to Asia in the east, North America in the west, and Africa in the south. There will be 6,300TWh of centralized generation and 900TWh of distributed generation in the continent by 2050. It also imports 2,300TWh of electricity from the Arctic and Equator.
North America: the energy interconnection in North America consists of power grids in the US, Canada and Mexico, connecting Europe in the east, Asia in the west and South America in the south. By 2050, North America will have 7,700TWh of centralized generation and 1,600TWh of distributed generation, and import 1,000TWh of electricity from the Arctic.
South America: its transnational energy interconnection will connect North America's power grids in the north, complement the power supply between the north and south in the west, transmit electricity generated from the north to the south in the east, and deliver electricity generated from the west to the east in the middle. By 2050, South America will have 3,300TWh of centralized generation and 800TWh of distributed generation, and import 1,000TWh of electricity from the Equator.
Africa: its energy interconnection will deliver power generated in the north to the south, complement the power between the east and the west, and connect to the grids in Europe in the north and Asia in the east. By 2050, Africa will have 3,500TWh of centralized generation and 3,000TWh of distributed generation, and devel0p 4,500TWh of electricity in the Equator, 1,500TWh of which will be delivered out.
PHASE THREE: TRANSCONTINENTAL INTERCONNECTION
The development of clean energy base`s in "the Arctic and Equator" regions and their outward power transmission are an important foundation to realize transcontinental energy interconnection. The wind resources in the Arctic account for 20% of the global total. The outward transmission channels for wind power in the Arctic are the strategic pivot of the global energy interconnection, mainly transmitting wind power in the Arctic out and realizing the energy interconnection among Asia, Europe, and North America in the Northern Hemisphere. The solar power in the Equator accounts for over 30% of the global total. The outward transmission channels for solar power in the Equator mainly deliver solar power generation in the Equator out. They are important channels to interconnect power grids between the southern and northern hemisphere.
Key channels of transcontinental grid interconnection
Asia-Europe: The northern channel will connect to Europe via china and Central Asia. The south Channel, taking solar bases in the Middle East as the foothold, connects India and Southeast Asia in the east and southern Europe in the northwest.
Asia-Africa: Asia will connect to Africa via the Middle East.
Europe-Africa: Africa will connect to Europe via the Strait of Gibraltar and the Mediterranean, or via the Middle East.
Europe-North America: Europe will connect to North America via Greenland.
North America-Asia: North America will connect to Asia via Bering Strait.
North America-South America: Interconnection will be realized via the Caribbean area.
Oceania-Asia: Oceania will connect to Asia via Indonesia, Malaysia and other Southeast Asian regions.
The construction of global energy interconnection is a gigantic and systematic project. It needs cooperation among international organizations, governments, utilities, industrial associations, and scientific research and educational institutes. Innovation in power technology, grid technology and power storage technologies should also be boosted and the integration of ICT and grid technologies should be stimulated. Meanwhile, it calls for strengthened standardization, reinforced superior design and a coordination development mechanism.