Theiß power station

Theiß Power Station
CountryAustria
LocationGedersdorf, Lower Austria
Coordinates48°23′41.04″N 15°42′29.123″E / 48.3947333°N 15.70808972°E / 48.3947333; 15.70808972
Commission date1974, 1976
OwnerEVN AG
Thermal power station
Primary fuelNatural gas
Secondary fuelFuel oil
Cogeneration?Yes
Power generation
Nameplate capacity800 MW
External links
CommonsRelated media on Commons

The Theiß Power Station is a thermal power station owned by EVN AG in Gedersdorf, Lower Austria, located in the Katastralgemeinde of Theiß. With a nominal capacity of approximately 800 MW, it is the most powerful power plant in the EVN portfolio.[1][2]

The facility consists of a combined cycle block commissioned in 1976 and a gas turbine installed upstream of the steam generator around the year 2000. It is also capable of generating and storing district heating (capacity 60 MW).[3]

Equipment

The chimney, formerly shared by both blocks, stands at 135 meters (443 ft) high, making it the third-tallest chimney in Lower Austria. The primary fuel is natural gas; however, fuel oil can be used as an energy source to ensure security of supply during bottlenecks. Natural gas is supplied via the West-Austria-Gasleitung (WAG) gas pipeline, while heating oil is delivered by tanker ships via the Danube and stored in onsite tanks.

Since 2020, the power plant has featured a third gas turbine. It has a nominal capacity of 240 MW, weighs 98 tonnes, and was purchased second-hand from Norway.[4]

On 11 January 2008, the (at the time) largest district heating storage in Europe went into operation at the site, utilizing 50 000 cubic meters of water as the working medium. A tank formerly used for oil, measuring approximately 50 m in diameter, was thermally insulated and converted for this purpose.[5] The design of the thermal stratification was calculated using the Richardson number. The Theiß power plant (EVN Wärme, subsidiary of EVN AG) supplies heat to the district heating networks of Krems an der Donau, Gedersdorf, and Grunddorf.

From 2011 to 2018, during Germany's nuclear phase-out, the reserve gas turbines also served as reserve capacity for the German power grid. Peak power could be produced at the request of transmission system operators.[6]

The Theiß substation is also located on the power plant grounds. It includes a network coupling transformer between the 380 kV level and 110 kV level with a transformation capacity of 300 MVA.[7]

Units of the Theiß Power Station[8]
Block Fuel Capacity Notes
A Gas 140 MW decommissioned
B (Combined) Gas 485 MW
C (Reserve) Gas / Gas turbine 70 MW
D (Reserve) Gas / Gas turbine 70 MW
E (Reserve) Gas / Gas turbine 240 MW

References

  1. ^ EVN AG Press Release as of 21 May 2010.
  2. ^ "Kraftwerk Theiß - Wärmekraftwerke". Retrieved 2024-10-10.
  3. ^ "Stromerzeugungsanlagen Theiß - Wärmekraftwerke". Retrieved 2024-10-10.
  4. ^ ORF.AT 1 June 2020: Turbine sichert Stromversorgung
  5. ^ Archived 2011-10-16 at the Wayback Machine
  6. ^ as seen during the Early 2012 European cold wave.
  7. ^ Press release on the substation as of 21 May 2010.
  8. ^ "Meldende Unternehmen". EEX-Transparenzplattform. European Energy Exchange (EEX). 2012-11-18. Retrieved 2012-11-19.