Agios Dimitrios Power Station is a

power plant A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the electricity generation, generation of electric power. Power stations are generally connected to an el ...

located near Agios Dimitrios, Kozani,

Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders ...

, situated between the towns of

Kozani Kozani ( el, Κοζάνη, ) is a city in northern Greece, capital of Kozani regional unit and of Western Macedonia. It is located in the western part of Macedonia, in the northern part of the Aliakmonas river valley. The city lies above sea ...

and Ellispontos village. In terms of its location in relation to a metropolis, the plant lies 140 kilometres (87 mi) west of

Thessaloniki Thessaloniki (; el, Θεσσαλονίκη, , also known as Thessalonica (), Saloniki, or Salonica (), is the second-largest city in Greece, with over one million inhabitants in its metropolitan area, and the capital of the geographic region of ...

, a major city in northern Greece. The Agios Dimitrios Power Station is the largest of Greece's power plants, generating a total capacity of 1,600 MW from two 300 MW units (Units I and II), two 310 MW units (Units III and IV), and one 365 MW unit (Unit V). In terms of physical size, the three

flue gas stack A flue-gas stack, also known as a smoke stack, chimney stack or simply as a stack, is a type of chimney, a vertical pipe, channel or similar structure through which combustion product gases called flue gases are exhausted to the outside air. Flue g ...

s of the facility are tall. The plant burns lignite extracted through

opencast Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock (geology), rock or minerals from the earth from an open-air pit, sometimes known as a Borrow pit, b ...

mining, a process undertaken at the Lignite Center of Western Macedonia, which is located in the Ptolemais-Amynteo region, the main coal mining area of Greece. The station is owned by the Public Power Corporation (PPC).

Unit V

Unit V was added to the existing four units of the Agios Dimitrios plant to be connected to the 400 kV outdoor

switchgear In an electric power system, a switchgear is composed of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Switchgear is used both to de-energize equipment to allow work to be ...

, to increase the supply energy to the Greek national

transmission grid Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation. The interconnected lines that facilitate this movement form a ''transmission network''. This is d ...

. It is a unit of 350 MW electric, plus 70 MW thermal for

district heating District heating (also known as heat networks or teleheating) is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heating a ...

purposes. In 1993, PPC awarded the contract for the supply and installation of Unit V to the consortium of the companies Ansaldo GIE (consortium leader – Italy, at present (2008) Ansaldo Energia a Finmeccanica Company), Austrian Energy and Environment SGP/Waagner-Biro GmbH (Austria) and AEGEK (Greece). Main steps of the contract execution were: :*

cooling tower A cooling tower is a device that rejects waste heat to the atmosphere through the cooling of a coolant stream, usually a water stream to a lower temperature. Cooling towers may either use the evaporation of water to remove process heat an ...

completion – November 1995 :* 6 kV initial electrification – August 1996 :* boiler first ignition – February 1997 :* unit first synchronization – May 1997 :* official opening – October 1997 :* commercial operation – December 1997 In May 1995, a 6.6 Mw

earthquake An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in intensity, fr ...

shook the area with a maximum

Mercalli intensity The Modified Mercalli intensity scale (MM, MMI, or MCS), developed from Giuseppe Mercalli's Mercalli intensity scale of 1902, is a seismic intensity scale used for measuring the intensity of shaking produced by an earthquake. It measures the eff ...

of VIII (''Severe''), which affected the progress of the work. In the region, twenty-five people were injured, and damage was valued at $450 million.

Contract and project management

The contract was signed on March 31, 1993, by Th. Xanthopoulos, PPC

general manager A general manager (GM) is an executive who has overall responsibility for managing both the revenue and cost elements of a company's income statement, known as profit & loss (P&L) responsibility. A general manager usually oversees most or all of ...

, Vincenzo Vadacca Ansaldo, GIE

managing director A chief executive officer (CEO), also known as a central executive officer (CEO), chief administrator officer (CAO) or just chief executive (CE), is one of a number of corporate executives charged with the management of an organization especially ...

, Heinz Zaunschirm and Helmuth Palzer, A.E. & E./Waagner-Biro directors and John Triadafillou, AEGEK managing director. For the contract performance phase, the

management Management (or managing) is the administration of an organization, whether it is a business, a nonprofit organization, or a Government agency, government body. It is the art and science of managing resources of the business. Management includ ...

of the project was provided by a

project team In a project, a project team or team is defined as "an interdependent collection of individuals who work together towards a common goal and who share responsibility for specific outcomes of their organizations". An additional requirement to the or ...

composed by Roberto Pisani as project director, appointed by the consortium leader Ansaldo GIE, and Klaus Zink and Costas Latsenere as project managers, appointed by A.E. & E. and AEGEK respectively. At the plant, Salvatore Brozzas and Giorgio Simoncin were appointed by the consortium leader as site and start-up managers interfacing with S. Spaniolas, the Unit V construction manager of PPC. Project activities were supported by Vincenzo Gaiaschi, Konstantinos Metaxas and Konstantinos Keramidas in the consortium office of Athens led by Giorgio Mazzoni. Ansaldo GIE, consortium leader, played also the role of plant architect engineer, assigning to Roberto Masi this duty as project engineer. On October 18, 1997, the unit was officially opened with the presence of

Costas Simitis Konstantinos G. Simitis ( el, Κωνσταντίνος Γ. Σημίτης; born 23 June 1936), usually referred to as Costas Simitis or Kostas Simitis (Κώστας Σημίτης), is a Greek politician who served as Prime Minister of Greece a ...

Prime Minister of Greece, Enrico Pietromarchi Italian ambassador in Greece, Fabrizio Pignatelli Italian consul at Thessaloniki, and with other representatives of the

Greek parliament The Hellenic Parliament ( el, Ελληνικό Κοινοβούλιο, Elliniko Kinovoulio; formally titled el, Βουλή των Ελλήνων, Voulí ton Ellínon, Boule of the Hellenes, label=none), also known as the Parliament of the He ...

and local authorities.

Scope of supply

Object of the contract between PPC and the Consortium was the design, engineering, manufacture, supply, transportation, installation, testing, putting in operation and delivery of one lignite-fired steam electric unit of 350 Mwe plus 70 MWth in the Agios Dimitrios plant, including the design, engineering, construction and supervision of the civil works. The project included the following main equipment, systems and works: *One steam turbine generating unit with condensing system and

feedwater Boiler feedwater is an essential part of boiler operations. The feed water is put into the steam drum from a feed pump. In the steam drum the feed water is then turned into steam from the heat. After the steam is used it is then dumped to the ma ...

heating system (Ansaldo GIE), *One lignite-fired steam generating unit (

boiler A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, centr ...

) (A.E. and E.), *The main and auxiliary power transformers (Ansaldo GIE) *Civil works (AEGEK) *FD and ID fans (Ansaldo GIE) * Electrostatic precipitators (A.E. and E.) *Ash handling system (A.E. and E. / EWB Ltd.) *Lignite handling system (A.E. and E.) *

Central heating A central heating system provides warmth to a number of spaces within a building from one main source of heat. It is a component of heating, ventilation, and air conditioning (short: HVAC) systems, which can both cool and warm interior spaces. ...

air conditioning (AEGEK) *Fire detection system (Ansaldo GIE) *

Waste water treatment Wastewater treatment is a process used to remove contaminants from wastewater and convert it into an effluent that can be returned to the water cycle. Once returned to the water cycle, the effluent creates an acceptable impact on the environme ...

(AEGEK) *Demi water storage (AEGEK) *Electrical equipment (Ansaldo GIE / A.E. and E.) *I&C (Ansaldo GIE / A.E. and E.) *District heating plant (Ansaldo GIE) Greek companies as ASPATE S.A., Mekasol, Metka e Rodax participated in the construction of the unit as subcontractors of the three consortium members.

Environment

Emission data

References

{{reflist, 30em

External links

* Lignite-Fired Plants in Greec

* Lignite Power Plant of Agios Dimitrios (1595 M

* ''Bulletin of the Geological Society of Greece'', vol. XXXVI, 2004 Proceedings of the 10th International Congress, Thessaloniki, April 2004
PE18
(PDF). * The Kozani-Grevena (Greece) earthquake of 13 May 1995 revisited from a detailed seismological study
BSSA
* (Italian) ''Finmeccanica al salone Defendory 2008: collaborazione con la Grecia''
"Defendory 2008"
(PDF), finmeccanica.it, 2008. * Greek Large Power Station (Grande Centrale Greca) – April 2, 199
Arch-Corr
archiviostorico.corriere.it. * http://skyscraperpage.com/diagrams/?buildingID=95938,95939,95940 Coal-fired power stations in Greece Buildings and structures in Kozani (regional unit) 1984 establishments in Greece