Thermal power station north (Bonn)
| Thermal power station north (Bonn) | |||
|---|---|---|---|
| location | |||
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| Coordinates | 50 ° 44 '1 " N , 7 ° 4' 48" E | ||
| country | Germany | ||
| Data | |||
| fuel | natural gas | ||
| power | 98.5 MW (electrical) + 180 MW (thermal) | ||
| owner | Stadtwerke Bonn GmbH | ||
| operator | Stadtwerke Bonn GmbH | ||
| Start of operations | 1998 (gas turbine) 2013 (combined cycle power plant) |
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| Energy fed in per year | 575 GWh | ||
The natural gas -fired Nord ( HKW Nord ) thermal power station operated by Stadtwerke Bonn (SWB) in Bonn 's Weststadt district supplies a large part of Bonn with electrical energy and district heating .
history
Power station
The location on Karlstrasse in Bonn has been used to generate electricity for more than a century. The first power station supplied Bonn from 1899. In 1905 the first steam turbine was used. Hard coal was used as fuel to generate steam until 1914 , then brown coal until 1998 .
Conversion to a thermal power station
After the Second World War, the buildings at HKW Nord were rebuilt in the early 1950s. In 1951, the decision was made to convert the electrical power station into a thermal power station and to switch to district heating. Since then, HKW Nord has been modernized and expanded several times. Since 1992, part of the steam from the neighboring waste incineration plant (MVA) has been decoupled to HKW Nord.
On October 19, 1994, a serious accident occurred at HKW Nord in which six people died. When checking safety valves, a pressurized pipe was torn off. The escaping hot steam scalded several employees, four men died at the scene of the accident, and two more died of their injuries in the hospital over the next few days. A year and a half later, an expert report listed previously unknown decomposition processes in the boiler's riser pipe as the cause of the pipe bursting.
In 1998, as part of a modernization process, lignite firing was stopped and a gas turbine was installed. Since then, natural gas has been used as fuel .
Conversion to a combined cycle power plant
The early 2000s, there were initial thoughts that HKW Nord to the combined cycle - cogeneration plant to expand. The expansion was intended to increase electricity production from 230 GWh / a to 575 GWh / a, with which around half of Bonn’s electricity would be generated in HKW Nord. The tenders were issued in 2007 and 2008, the use of a general contractor was dispensed with, which should reduce the construction costs by 40 million euros. The cost of expanding the cogeneration plant was estimated at 80 million euros, of which 22 million euros were attributable to the new steam turbine.
Construction began on April 19, 2010, and the topping-out ceremony was held in June 2012. The official commissioning finally took place on July 19, 2013.
Since 2018, the HKW has not only been producing district heating and electricity, but is also supplying a new district cooling network in Karlstrasse. For this purpose, two absorption chillers with a cooling capacity of 400 kW each were set up. The technical systems as well as the office and control rooms of HKW Nord can be air-conditioned via a 700 m long district cooling network. In addition, the new building of the SWB subsidiary Bonn-Netz is to be supplied with the cold produced in the thermal power station.
There is also a photovoltaic system on the roof of HKW Nord for generating electricity.
Technical specifications
| block | fuel | rated capacity | Gas turbine | Steam turbine | start of building | Installation | Shutdown |
|---|---|---|---|---|---|---|---|
| GuD | Natural gas as well as residual waste and substitute fuels (MVA) | 98.5 MW | 24.5 MW | 74 MW | 2010 | 2013 | in operation |
The maximum thermal output that can be coupled to the district heating network is 180 MW (of which 70 MW new hot water boiler and 110 MW steam turbine). A total of around 520 GWh of district heating is extracted each year.
With almost 300 tons per year, HKW Nord is the largest industrial nitrogen oxide emitter in Bonn and thus causes around 15% of Bonn's nitrogen oxide emissions.
Web links
Individual evidence
- ↑ Bernd Linnarz: 25 years ago: an explosion in the thermal power station claimed six deaths in Bonn. Retrieved November 3, 2019 .
- ↑ a b GA BONN: HKW-Nord becomes HKW-Neu. Retrieved November 3, 2019 .
- ↑ GA BONN: Heizkraftwerk Nord: Topping-out ceremony celebrated - Stadtwerke invest 80 million euros. Retrieved November 3, 2019 .
- ↑ GA BONN: Heizkraftwerk-Nord: Start for Bonn's biggest powerhouse. Retrieved November 3, 2019 .
- ↑ a b Bonn: HKW Nord now also produces environmentally friendly refrigeration. Retrieved November 3, 2019 .
- ^ SPD Endenich / Weststadt. Retrieved on November 3, 2019 (German).