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or wind gauge is the description given to various instruments that measure the local speed of a flow field, particularly wind speed.
Term used to describe the unevenness of the earth's surface and the frictional effect it has on air streams.
Abbreviation for the Bundesamt für Seeschifffahrt und Hydrografie (Federal Maritime and Hydrographic Agency) in Hamburg
Describes processes or conditions that do not change the current global balance of CO2.
Fixed price paid for the feed-in of electricity from renewable sources into the public electricity grid. In Germany, this price is set by the Renewable Energies Act (EEG).
Output of (harmful) substances such as CO2 into the environment.
Final energy describes the part of the energy that can be used by the consumer after the losses incurred through conversion and transmission.
Companies that generate electricity from fossil fuels or renewable sources and market it
Energy from sources that are continually regrowing (e.g. plants) or are available in unlimited quantities (wind, solar energy)
Organisation that actively promotes wind power in Europe and worldwide.
Investors in the financial sector who make investments purely with an eye to returns (unlike strategic investors, usually in the same sector)
The foundations make the wind power station solid and conduct all loads generated by the wind rotor and the movement of the station into the ground.
Transforms kinetic energy into electrical energy
The nacelle houses the wind power station's machinery. It is mounted on the tower in such a way that it can revolve, and turns automatically into the wind so as to optimise the energy generated. The nacelle houses the drive train consisting of all the energy-transmitting components. The rotor's movement is transmitted to the generator via the drive shaft and a gear unit. This transforms the mechanical energy into electrical energy. The nacelle also contains all subsystems such as controls, air-conditioning, oil and hydraulic supplies, data capture and security systems.
Describes development from the first project phase on previously undeveloped site (as opposed to the takeover of existing projects).
Commercial code containing German accounting regulations; decisive for the ability of German companies oriented on the capital market to pay dividends.
A wind power station must always be highlighted if it exceeds a certain height. There is a difference between daytime lighting and night lighting. During the daytime, power stations are distinguished by coloured markers and/or white lamps, at night by red ones. The markings for each height are regulated in the "General Administrative Regulations for the Identification of Aviation Obstacles" (AVV).
Electricity with a voltage of more than 1,000 volts, facilitates the transmission of electrical energy with as few losses as possible
International accounting regulations, the aim of which is to make the financial statements of companies in different regions (mostly oriented on the capital market) comparable.
Funds that specialise in investments in public supplies (e.g. in the transport or energy sectors)
Independent power producer
Enterprise formed by two or more companies
A partner in a limited partnership who is only partly liable with his assets, unlike a general partner
The relationship between wind speed and electricity output
In Germany, wind power plants are generally subject to the guidelines for general aviation obstacles, i.e. they must be highlighted if they exceed a total height of 100 m, in special cases even if they are less than 100m high.
One million watt (physical unit of power, corresponds to work done per unit of time)
Payment of a purchase price in instalments as the project progresses
In the building industry, a monopile is a type of foundation for offshore constructions. As the name implies, a monopile foundation consists of a single round steel post, the upper end of which shows above the water
Part of the wind power station to which the rotors are attached
The nominal capacity is the power a wind power station can convert or generate according to the manufacturer. This maximum capacity can differ to the actual capacity due to the local wind conditions.
Off the coast, in the sea
On the mainland
Segment of the Frankfurt Stock Exchange with the highest transparency standards
The replacement of older wind power turbines by more modern, high-capacity and consequently more efficient ones
The rotor is screwed to the thick drive shaft. This large rotor usually has three rotor blades that collect the wind. When the wind is strong enough, the rotor begins to turn.
Rotating part of the wind power plant that turns to transmit the wind's kinetic energy to the generator
Power-to-gas technology converts electricity from renewable energy sources into hydrogen or synthetic gas for storage in the gas grid
The tower is the largest component of any wind power station and weighs several hundred tons. The height of the tower depends on its location. If the ground is very uneven ("roughness"), as in the forest, higher towers are used because the wind blows more strongly and consistently in higher strata. Smaller towers are used in coastal areas and at locations where the ground is more even. The towers in the Sontra wind farm are hybrid constructions made of concrete and steel. The lower part consists of 20 concrete rings, the upper of two steel segments.
Specialises in the distribution and marketing of wind farms to investors via smaller funds.
System that regulates the amount of feed-in remuneration paid
Energy consumer security in terms of price, quality and quantity of energy required
Interest-bearing security that gives the owner the right to convert it into shares at a previously fixed rate during specified conversion periods
Transforms the wind's kinetic energy into electrical energy and feeds it into the electricity grid.
An instrument that shows the direction in which the wind is blowing.
The strength of the wind in a specific region