Herne power plant

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Herne Baukau power plant
View from the Wanne-Eickel lock over the canal to the power plant
View from the Wanne-Eickel lock
over the canal to the power plant
location
Herne power plant (North Rhine-Westphalia)
Herne power plant
Coordinates 51 ° 33'5 "  N , 7 ° 11'20"  E Coordinates: 51 ° 33'5 "  N , 7 ° 11'20"  E
country Germany
Waters Rhine-Herne Canal
Data
Type Thermal power station
fuel Hard coal
power Block 4: 449 MWel
owner Steag
operator Steag
Start of operations 1962/1963/1966 and Block 4: July 25, 1989
Shutdown Block 1: 2000
Block 2: 2014
Block 3: 2017
boiler 2 coal dust-fired Benson boilers - liquid ash removal (492 t / h + 930 t / h),

1 coal dust-fired Benson boiler - dry ash removal (1,584 t / h)

Chimney height 300 m
Energy fed in 2008 5200 GWh
Website www.steag.com
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The Herne thermal power station is a coal-fired power station owned by Steag . It is located in Baukau , a district of Herne ( North Rhine-Westphalia ).

history

In 1962/63 the first two power plant blocks with an output of approx. 150 MW each were built. Block 3 with 280 MW was added in 1966 (converted to district heating in 1987). Unit 3 had an efficiency of only 30 percent. In 1988 the power plant was retrofitted with a flue gas desulphurisation system .

In 1989 a fourth power plant block with 449 MW electrical output was built; this block can also provide district heating if required. In connection with this new building, the 300 meter high chimney and the large cooling tower (130 m) were built in 1984, which currently shape the image of the power plant. This new chimney replaced three old chimneys that were subsequently demolished. The oldest block 1 was shut down in 2000. Unit 2 followed in 2014 and Unit 3 in June 2017. Currently, only Unit 4 with a capacity of 449 MWel is in operation.

Technical specifications

The four original power plant blocks together had an electrical output of 950  megawatts . With Block 4, 449 MW of electrical power are still in operation.

In 2008 the power plant produced approx. 5.2 billion kWh of electricity (energy requirement of approx. 1.3 million households) and 0.8 billion kWh of district heating , which were fed into the district heating network of the Ruhr district heating network.

The coal consumption in 2008 was about 2.0 million tons. The CO 2 emissions this year totaled loud European Pollutant Emission Register (EPER 2004) to 4,510,000 tons.

Due to the changed conditions on the electricity market as a result of the energy transition, electricity production decreased to 2,501 GWh in 2011 (5,200 GWh in 2008). As a result of the reduced electricity production, the consumption of hard coal also decreased from approx. 2,000,000 tons (year 2008) to approx. 961,923 (year 2011).

Electricity production and coal consumption at the Herne power plant
year Usable electricity output in gigawatt hours Coal consumption per gigawatt hour Total coal consumption
2008 5,200 GWh 384.62 t 2,000,000 t
2011 2,501 GWh 384.63 t 961,923 t

The coal is supplied via the Rhine-Herne Canal , from which the required cooling water is taken and reintroduced. In 2008 about 250 employees worked in the power plant. The power plant is also a location on the “Large-scale chemistry and energy” themed route on the Industrial Culture Route .

Planning

The power plant from above

Formerly planned coal-fired power station unit 5

In autumn 2006, Steag announced that it would build a fifth power plant block with municipal partners with an output of 750 MW and a net efficiency of 45%. Construction of the € 800 million project was scheduled to begin in summer 2008; the unit was scheduled to go into operation in autumn 2011. The "Herne 5" project envisaged the construction of a 180 m high cooling tower through which the flue gases should also be discharged (clean gas discharge), so the construction of a separate chimney would not have been necessary. 50 new jobs would have been created for the operation of Block 5.

The reason given by the operator at the time, Evonik, was the proposal of the EU Commission that, as part of emissions trading, trading in carbon dioxide certificates should be expanded to include new plants from 2012. The economic crisis in 2009 and the low electricity wholesale price for years were probably other factors that made the investment appear questionable.

As of 2018, the plans for this block have been abandoned due to the unprofitable business prospects for coal-fired power plants. Instead, a gas power plant is to be built (see below).

Gas and steam power plant

Steag is planning to build a gas-fired combined cycle power plant unit at the site , which will be operated in combined heat and power . A 22-kilometer gas pipeline is to be built between Datteln and Herne for the gas supply. The block, known as Herne 6, should have an electrical output of 650 MW and an additional 400 MW of district heating. The investment costs are estimated at 350 to 400 million euros. The final investment decision is to be made in 2019, and if the decision is positive, the block will be operational by mid-2022. Siemens was commissioned to build the plant, which will build a CHP plant based on the SGT5-8000H . At the beginning of 2019, construction work began with the preparation of the property. With the commissioning of the new gas and steam power plant, planned by March 2022, the coal-fired Unit IV is to be shut down.

Emissions

Coal-fired power plants are criticized for their pollutant emissions. Even after the installation of filter systems in the 1980s, which largely desulfurized the exhaust gases, coal-fired power plants continued to emit relevant quantities of sulfur dioxide . In addition, nitrogen oxides , which are harmful to the environment and health, as well as fine dusts that are harmful to health , the heavy metals and PAHs contained therein enter the environment. In Germany, the energy industry contributed 71% (6.571 tons) to total mercury emissions in 2010 .

The pollutant emissions of all large coal-fired power plants and industrial plants are published in the European Pollutant Emissions Register (via the German portal www.Thru.de).

Emissions below the reportable quantity threshold are listed in the table with "<" next to the limit value.

Air pollutants

Annual emissions from the Herne power plant
Air pollutant PRTR 2007 PRTR 2008 PRTR 2009 PRTR 2010 PRTR 2011 PRTR 2012 PRTR 2013
Carbon dioxide (CO 2 ) 3,090,000,000 kg 2,780,000,000 kg 2,230,000,000 kg 2,480,000,000 kg 2,460,000,000 kg 2,340,000,000 kg 2,620,000,000 kg
Nitrogen oxides ( NO x / NO 2 ) 2,180,000 kg 1,860,000 kg 1,570,000 kg 1,790,000 kg 1,790,000 kg 1,510,000 kg 1,940,000 kg
Sulfur dioxide (as SO x / SO 2 ) 1,750,000 kg 1,790,000 kg 1,320,000 kg 1,340,000 kg 1,250,000 kg 1,330,000 kg 1,730,000 kg
Methane ( CH 4 ) not specified not specified not specified not specified not specified 207,000 kg 231,000 kg
Volatile Organic Compounds ( NMVOC ) not specified not specified not specified not specified not specified 206,000 kg 231,000 kg
Ammonia ( NH 3 ) not specified not specified not specified not specified not specified 16,900 kg 18,900 kg
Nitrous oxide ( N 2 O ) 18,600 kg 13,900 kg 13,200 kg 15,600 kg 14,600 kg 10,800 kg 14,800 kg
Inorganic fluorine compounds (as HF ) 21,200 kg 9,900 kg 10,300 kg 11,800 kg 12,400 kg 10,900 kg 13,700 kg
Inorganic Chlorine Compounds (as HCl ) 67,100 kg 61,300 kg 10,300 kg 11,500 kg 12,400 kg 10,500 kg 13,600 kg
Mercury and compounds (as Hg ) 37.6 kg 41.7 kg 32.3 kg 30.3 kg 31.7 kg 50.5 kg 44 kg

No other typical pollutant emissions were reported, as they are only required to be reported in the PRTR from an annual minimum amount, e.g. B. Dioxins and furans from 0.0001 kg, cadmium from 10 kg, arsenic from 20 kg, nickel from 50 kg, chromium and copper from 100 kg, lead and zinc from 200 kg, ammonia and hydrogen chloride from 10,000 kg, methane and volatile organic compounds except methane (NMVOC) from 100,000 kg and carbon monoxide from 500,000 kg.

Specific emissions of the Herne power plant (reporting year 2011)
power plant Amount of electricity produced Coal consumption Carbon dioxide (CO 2 ) Nitrogen oxides (NO x / NO 2 ) Sulfur oxides (SO x / SO 2 ) Inorganic chlorine compounds as HCl Inorganic fluorine compounds as HF Nitrous oxide (N 2 O) Mercury (Hg)
Herne 2,501 GWh 961,923 t 2,460,000 t 1,790 t 1,250 t 12,400 kg 12,400 kg 14,600 kg 31.7 kg
Amount per GWh 1 GWh 384.62 t 983.61 t 0.716 t 0.499 t 4.958 kg 4.958 kg 5.838 kg 0.0127 kg

Water pollutants

Water pollutants from the Herne power plant (reporting year 2011)
power plant Amount of electricity produced Coal consumption Chloride - waste water - Fluoride (as total F) - waste water - Zinc (Zn) sewage Copper (Cu) waste water
Herne 2,501 GWh 961,923 t <2,000,000 kg 2,440 kg <100 kg 358 kg
Amount per GWh 1 GWh 384.62 t no exact dates 0.976 kg no exact dates 0.143 kg

Solid pollutants (shipments of hazardous waste)

Solid pollutants (shipment of hazardous waste) from the Herne power plant (reporting year 2011)
power plant Amount of electricity produced Coal consumption Total amount of waste Waste for disposal Waste for recycling
Herne 2,501 GWh 961,923 t 248 t 227 t 21 t
Amount per GWh 1 GWh 384.62 t 0.099 t 0.091 t 0.008 t

photos

  • Herne Baukau power plant

  • District heating pipes

  • Herne power plant at night

  • ... and in the snow

  • Steam generation

  • Seen from the Pluto dump

See also

literature

  • Steag: Power plant project in Herne is taking shape. In: Bergbau Heft 11/2006, p. 517 ( digitized, pdf, 92 kB )

Web links

Commons : Kraftwerk Herne  - Collection of images, videos and audio files

Individual evidence

  1. ↑ a b power plant list of the Federal Network Agency , as of March 7, 2019
  2. ↑ Current report from REWAG. August 8, 2007, accessed on January 31, 2013 (REWAG statement on allegations by the Left).
  3. ↑ WAZ: Steag finally closes Block 2
  4. ↑ a b c Compensation for new gas pipeline. waz.de, July 18, 2017, accessed on August 26, 2017 .
  5. ↑ EPER data 2004 for Germany; Steag AG, HKW Herne. Retrieved February 27, 2011 .
  6. ↑ a b Herne 6 should be online by mid-2022 . In: Energie und Management , April 23, 2018. Accessed April 23, 2018.
  7. ↑ Steag and Siemens sign contract for the construction of the new combined cycle power plant in Herne , Steag press release from 2018-07-31
  8. ^ Starting shot for the construction of a new gas power plant in Herne . In: Westdeutsche Allgemeine Zeitung , January 21, 2019. Accessed April 28, 2019.
  9. ↑ On a power plant tour in the Ruhr area. In: Lokalkompass, April 25, 2019. Accessed on May 30, 2020.
  10. ↑ Federal Environment Agency (2012): Emissions development 1990–2010, Heavy Metals National trend tables for the German reporting of atmospheric emissions since 1990 (Excel table)
  11. ↑ PRTR - European Emissions Register
  12. ↑ PRTR regulation 166/2006 / EC on the creation of a European pollutant release and transfer register and on the amendment of the Council Directives 91/689 / EEC and 96/61 / EC
  13. ↑ a b c European pollutant emission register - emission data for the Steag power plant in Herne
  14. ↑ a b c Data from the operator Steag on the Herne power plant (www.steag.com) ( Memento of the original from May 9, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.steag.com