Altbach Power Station
The Altbach / Deizisau is according to the operator of one of the most modern coal-fired power plants in Europe. It consists of two blocks and stands on the municipalities of Altbach and Deizisau, Wuerttemberg.
The total installed electrical capacity is including gas turbines and combined block 4 1,270 MW. The power plant is connected to the 110 kV high- voltage grid of EnBW Regional AG and the 380 kV high voltage grid of Transnet BW.
History
Already in 1899 Heinrich Mayer built his strength Centrale, the first coal-fired power plant in Altbach. 1899 will then be valid as the founding year of the Neckar works.
End of the 1940s, then came the forerunner of today's power plant. In 1950, Block 1 went into operation. Block 2 and 3 followed in 1960, Block 4 in 1971. Unit 1 was shut down in 1982 and 1985 demolished the blown 120 -meter-high chimney. Block 2 and 3 were demolished in 1993 and blasted the two also 120 meter high chimneys.
Existing power plant units
Heating plant 1
The HHC 1 went mid-1985 to the network. Originally, this plant was designated as Block 5. The plant initially had a gross electrical output of 420 megawatts. By retrofitting the high - and low-pressure turbine in 2006, the electric power was increased to 465 megawatts. The district heating from 280 MWth remained unchanged.
The HHC 1 feeds on the 380 kV high- voltage level in the network of the transmission system operator Transnet BW one.
In the cooling tower of unit 1 is a forced-air cooled by fans cooling tower, which can be operated either as a pure wet cooling tower or as a hybrid cooling tower. The cooling tower has a height of 45 meters and served as a prototype for the hybrid cooling tower of a nuclear power plant Neckarwestheim 2 has The chimney of the HHC 1 a height of 250 meters.
Thermal power station with 2 gas turbine E
The HKW 2 took 1997 on the operation. It had an initial gross output of 330 MWe in main boiler operating at a net efficiency of 41.3 %. Through modernizing in 2012 was the performance by 20 MW, now increased to 350 megawatts. Part of this modernization was a retrofit of the intermediate-pressure turbine, and a reconstruction of the furnace and the six coal mills. As fuel for the main boiler coal or natural gas is used.
In addition, the HHC 2 has a gas turbine (gas turbine E) with a capacity of 60 megawatts and a waste heat boiler. The gas turbine E ( Solo) is classified as all gas turbines at the site, as systemically important by the TSO in network development plan in 2013.
The electrical power in interconnected operation is 428 megawatts with an efficiency of 43.8%. Also, there is, as in the HKW 1, the possibility of district heating from 280 MWth in the main boiler operation, which can be increased in interconnected operation with heat recovery boiler to another 87 MWth. The fuel utilization rate is up to 80%.
The HKW 2 feeds on the 380 kV high- voltage level in the network of the transmission system operator Transnet BW and the gas turbine E on the 110 kV level in the power distribution providers EnBW Regional one.
In the cooling tower of the HKW 2 is the same cooling tower types, such as at HKW 1 The cooling tower is 42 meters high and has a base diameter of 76 meters. The HHC has 2 as the neighboring HKW 1 is also a 250 -meter-high chimney.
Combined cycle unit with 4 gas turbine A
Unit 4 started operation in 1972. He has a Vorschaltgasturbine (gas turbine A) of the type Siemens V93.0 with a capacity of 50 megawatts and a fired with oil / gas boiler main steam turbine. It is also possible to lead the exhaust gases from the gas turbine into the main tank, resulting in a combined cycle mode allows. The electrical power is then 238 MWe, in the power -generation mode, a maximum of 175 MWe and 180 MWth are possible.
The gas turbine A fed on the 110 kV level in the power distribution providers EnBW Regional.
The chimney on block 4 has an opening height of 150 meters.
The combined block 4 is in cold reserve. , The gas turbine A ( Solo) is classified as systemically important in network development plan.
Gas turbine B and C
The two gas turbines went into operation in 1974 and 1976 and have an electrical output of 60 and 87 MW and can be powered by either natural gas or fuel oil.
The gas turbine B and C can dine on the 110 kV level in the power distribution providers EnBW Regional and are also classified as systemically important.
Operator
Operator EnBW power stations AG; before that it was the works Neckar Stuttgart (1997-2003) until 1997, the Neckar works electricity supply.
District heating
About a district heating pipe, the so-called "Middle Neckar rail ", the power plant with cogeneration plant Stuttgart- Gaisburg in Stuttgart-Ost and the waste incineration plant in Stuttgart-Münster is connected. A large part of industrial enterprises in Esslingen and Stuttgart (among works of the Daimler AG ) are supplied with district heating, as many households in Esslingen, Altbach, Deizisau, Plochingen and Stuttgart.
Emissions
Both heat and power plants are equipped with efficient denitrification, dedusting and desulphurisation. The operator reported the following pollutant emissions in the European Register " PRTR "
Pictures
HKW 2
Hybrid cooling tower HKW 2
Machine hall
Discarded low-pressure steam turbine blade