Werder / Kessin wind farm

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"Wind farm RH 2 Werder / Kessin / Altentreptow (RH 2 -WKA)"
Werder / Kessin wind farm from the northeast (Altentreptow-Ost wind farm in the background)
Werder / Kessin wind farm from the northeast
(Altentreptow-Ost wind farm in the background)
location
Wind farm Werder / Kessin (Mecklenburg-Western Pomerania)
Werder / Kessin wind farm
Coordinates 53 ° 42 ′ 55 "  N , 13 ° 19 ′ 12"  E Coordinates: 53 ° 42 ′ 55 "  N , 13 ° 19 ′ 12"  E
country Federal Republic of Germany
Data
Type Hybrid power plant
Primary energy Wind energy
power approx. 144 MW (electric)
operator WIND project
Start of operations September 2013 (official)
turbine 15 × Enercon E-126 / 7.5 MW, 13 × Enercon E-82 / 2.3 MW
was standing September 2013
f2

The wind farm RH 2 -Werder / Kessin / Altentreptow (RH 2 -WKA) is a large onshore wind farm with integrated hydrogen storage in the municipality of Grapzow in Mecklenburg-Western Pomerania . It is located east of the districts of Grapzow and Kessin , in the direction of the neighboring town of Werder .

The wind farm is one of the hybrid power plants due to an integrated small prototype for hydrogen storage and a combined heat and power plant for reuse . With an installed capacity of 140  MW , it is one of the largest onshore wind farms in Germany (see below). In contrast to other hybrid power plants, the storage circuit with the storage medium regenerative hydrogen ("RH 2 ") completely dispenses with the use or admixture of hydrocarbons. This results in some technical innovations. The only exhaust gas that is produced during power recovery is water vapor.

The cost of the entire project was around 220 million euros. The hydrogen storage facility, the investment cost of which is given as 9.4 million euros, was subsidized as a pilot project with 4.5 million euros from the national innovation program for hydrogen and fuel cell technology. The project was officially commissioned on August 19, 2013.

Wind farm

There are a total of 28 wind turbines with an output of around 144 MW. Turbine types from the manufacturer Enercon are used , 15 of which are of the Enercon E-126 type, which at the time of construction was the most powerful wind turbine in the world. Each of these plants has a nominal output of 7.5 MW, a rotor diameter of 127 meters and a hub height of 135 meters, which means that the plants reach a total height of almost 200 meters. In addition, 13 Enercon E-82s with 2.3 MW each were installed. Construction of the wind farm began in spring 2011. According to media reports, it will be the largest wind farm in Mecklenburg-Western Pomerania, the electrical energy produced should correspond to the annual consumption of 120,000 households, 15% of households in Mecklenburg-Western Pomerania. Other media describe the wind farm as the largest onshore wind farm in Germany and estimate the annual electrical energy produced to be used by 125,000 households.

To feed the electrical energy into the power grid , a 110 kV substation was built during the first construction phase . During the second construction phase, a 380 kV substation was also built, which can be used to feed directly into the extra- high voltage network.

Electrolysis storage power plant

The system consists of an electrolyser with an output of 1 MW, which uses power-to-gas technology to generate hydrogen from excess wind power , a compressor, a gas storage unit and a block-type thermal power station with which the hydrogen can be converted back into electricity when wind power is being fed in. The heat generated during this process is extracted and used to heat a nearby farm. The groundbreaking ceremony for the plant, which operates under the name “RH2-WKA” 1, took place in July 2011 in the presence of Prime Minister Erwin Sellering .

The system has been in test operation since December 2012, which will initially extend over three years [obsolete] . The aim of this test operation is to research technologies with which the weather-related variable feed-in from wind power and photovoltaic systems can be stabilized. In addition to the development of renewable energies and the power grid, energy storage is one of the key technologies of the energy transition . A successful storage technology would make wind power suitable for base loads , which would save shadow and reserve power plants . At the same time, chemical storage in the form of hydrogen offers the advantage that hydrogen can be used as a seasonal storage without any problems or can also be used in transport and for heat generation. At the moment there are only pumped storage power plants as commercial storage power plants , but for technical reasons they can only store energy for short periods of time.

By storing wind power as RE gas during times of high wind power generation, generation peaks that otherwise could no longer have been fed in due to the limited capacities of the power grid could continue to be used. So could z. For example, in 2010 a total of around 150  GWh of electrical energy across Germany was not fed in because in parts of Germany the power grid reached its capacity limit during periods of strong wind and wind turbines had to be regulated or throttled accordingly. This is only less than 0.5% of the actually generated wind energy of around 37,800 GWh.

The expansion to include a methanation system for direct feed into the gas network and the construction of a hydrogen filling station are planned.

See also

Web links

Commons : Werder / Kessin wind farm  - Collection of images, videos and audio files

Individual evidence

  1. ↑ Wind farm with hydrogen storage system is growing ( Memento from September 5, 2012 in the web archive archive.today ). In: Ostsee-Zeitung , January 20, 2012. Retrieved January 20, 2012.
  2. ^ Groundbreaking ceremony for the NIP project RH2 Werder / Kessin / Altentreptow - Renewable hydrogen from wind energy ( Memento from April 7, 2014 in the Internet Archive ). Press release from WIND-projekt. Retrieved January 20, 2012.
  3. ↑ Engineering storage rooms. Wind farm generates hydrogen . In: n-tv , September 19, 2013. Retrieved September 20, 2013.
  4. ↑ Wind becomes hydrogen . In: Sonne Wind & Wärme , July 8, 2011. Accessed January 20, 2012.
  5. ↑ Enercon Windblatt 01/2012 (PDF; 1 MB). Enercon website. Retrieved April 27, 2012.
  6. ↑ Hydrogen storage in operation . In: klimaretter.info , September 19, 2013. Retrieved September 20, 2013.
  7. ↑ Wind power hydrogen plant strengthens MV as a pioneer in the energy transition ( Memento from February 14, 2016 in the web archive archive.today ). Press release from the state of Mecklenburg-Western Pomerania. Retrieved January 20, 2012.
  8. ↑ IRES conference in Berlin: “No energy transition without energy storage. Legal framework is overdue! " . Solar server . Retrieved January 20, 2012.
  9. ↑ Systems are being switched off more and more often . In: Sonne Wind & Wärme , November 2, 2011. Accessed January 20, 2012.
  10. ↑ Reliable giant wind farm . In: Renewable Energies. Das Magazin , October 22, 2013. Retrieved October 23, 2013.