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| Vijayawada Thermal Power Station, comprising of 6 units of 210 MW was developed in 3 stages; first stage units in 1979-80; second stage units in 1989-90 and third stage units in 1994-95. |
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| Cooling Water System in the Past |
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The source of cooling water for VTPS is Prakasam Barrage on River Krishna. After considering certain aspects such as depleting the water level at Prakasam Barrage to El +13.73 M (Sill level) for 60 days during summer season to obtain dry-bed condition to enable periodical visual inspections of the structures, gates, upstream aprons etc., and undertake repairs, as and when necessary as the Barrage has already been in operation for more than 42 years., Govt. of AP has instructed to modify the once-through cooling water system at VTPS. |
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| Modified Cooling Water System |
 | The Scheme of Alternative Cooling Water System that has been implemented is broadly as follows. |
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| Commencement & Completion Details |
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The project is taken up in Sep, 2002 and all works are completed by March 2004. The pumps were test run on 29.03.2004.
The alternate cooling water system is in operation continuosly from the commencement of depletion of pond level at Prakasham Barage by Irrigation & CAD department from 03-05-2004 FN onwards. |  |
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| Summary |
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Normally, this kind of scheme involving 3 Cooling Towers takes 2 ½ to 3 years for completion; however APGENCO completed the entire scheme in a record time of 1 ½ years with substantial time & cost saving. This achievement has been made possible by the dedicated service by all its employees at headquarters and field and timely supply by all the Suppliers and timely execution by Contractors associated with the work.
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