What will an energy island look like?
The world's first energy island will be the size of 18
It is the largest construction project in Danish history and is estimated at 210 billion kronor ($ 34 billion).
The man-made island, located 80 km (50 mi) from the sea, is at least half owned by the state and partly by the private sector.
It will supply electricity not only forDanes, but also for the power grids of other neighboring countries. While these countries have not yet been described, Professor Jakob Ostergard of the Technical University of Denmark told the BBC that Britain could win, as well as Germany or the Netherlands. Green hydrogen will also be used in shipping, aviation, industry and heavy transport.
According to the Danish Climate Act, the countrypledged to achieve an ambitious 70% reduction in greenhouse gas emissions by 2030 in 1990 and to achieve CO2 neutralization by 2050. In December last year, it announced the end of all new exploration for oil and gas in the North Sea.
It is planned that the area of the island will grow from the original 120,000 sq. m up to 460,000 sq. m.
Dansk Energi has previously stated that it doubts thatan island in the North Sea will be launched by the scheduled start date of 2033. But Danish politicians backed the ambitious plan. Former Energy Minister Rasmus Helweg Petersen of the Social Liberal Party said the energy islands started out “as a radical idea,” but the cohesion of society, companies and politicians made it a reality.
A small energy island is already plannedoff the island of Bornholm in the Baltic Sea, east of the Danish mainland. Agreements have already been signed for the supply of electricity from there to Germany, Belgium and the Netherlands, the BBC reports.
Although it remains a mystery as to where thea new island has been built; it is known that it will be in the North Sea. Danish TV reported that last year, a study by the Danish Energy Agency noted two areas west of the Jutland coastline, both having a relatively shallow sea depth of 26-27 meters.
Europe's plans to the wind
Last November, the European Union announcedplans to increase the capacity of offshore wind turbines 25 times by 2050 and five times by 2030. Renewable energy sources provide about a third of the unit's current electricity needs:
- According to the EU, offshore wind power supplies the current level of 12 gigawatts.
- Denmark supplies 1.7 gigawatts
- The new island will supply the first 3 gigawatts and will eventually grow to 10.
- The smaller energy island Bornholm will provide 2 gigawatts.
How does wind power work?
Wind turbines operate on a simple principle:instead of using electricity to generate wind like a fan, wind turbines use wind to generate electricity. The wind spins the propeller-like blades of a turbine around a rotor that drives a generator that generates electricity.
Wind is a form of solar energy caused by the combination of three simultaneous events:
- The sun heats the atmosphere unevenly
- Irregularities of the earth's surface
- Rotating the Earth
The nature and speed of the wind flow is strongdiffer depending on the territory, these indicators depend on water bodies, vegetation and differences in the terrain. People use this flow of wind or energy in motion for many purposes: swimming, flying a kite, and even generating electricity.
The terms "wind power" and "wind power"describe the process by which wind is used to generate mechanical energy or electricity. This mechanical power can be used for specific tasks (such as grinding grain or pumping water), or a generator can convert this mechanical power into electricity.
A wind turbine converts wind energy intoelectricity, using the aerodynamic force from rotor blades, which act like an airplane wing or helicopter rotor blades. As wind passes through the blade, the air pressure on one side of the blade decreases. The difference in air pressure on the two sides of the blade creates lift and drag. The force of lift is stronger than drag, and this causes the rotor to rotate. The rotor is connected to the generator either directly (if it is a direct drive turbine) or through a shaft and a series of gears (gearbox), which speeds up the rotation and allows the use of a smaller generator. This translation of aerodynamic force into rotation of the generator creates electricity.
Most wind turbines are divided into two main types: horizontal-axis turbines and vertical-axis turbines
Wind Turbine Applications
Modern wind turbines can be categorized according to where they are installed and connected to the grid:
- Ground wind
Onshore wind turbine sizes range from100 kilowatts to several megawatts. Larger wind turbines are more cost effective and are integrated into wind farms that provide more power to the grid.
- Sea wind
Offshore wind turbines are typicallymore massive and taller than the Statue of Liberty in the United States. They do not have the same transportation problems as onshore wind turbines, as large components can be transported by ships rather than by road. These turbines are capable of capturing strong ocean winds and generating massive amounts of energy.
- Distributed wind
When wind turbines of any sizeinstalled on the “consumer” side of the electricity meter or installed in or near the place where the energy they produce will be used, they are called “distributed wind”.
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Jutland - a peninsula in Europe, dividesBaltic and North Seas. The area is about 40 thousand km². The northern part of the peninsula belongs to Denmark, the southern part belongs to Germany. The Danish portion was increased in 1920 following a plebiscite. With the construction of Ayderkanal in 1784, Jutland actually became an island.