Andhra Pradesh Power Generation Corporation

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Type Government-owned Corporation-PSU
Industry Electricity generation
Founded 1998
Headquarters Hyderabad, India
Key people S.V.Prasad Chairman,K Vijayanand Managing Director [1]
Products Electricity
Total assets IncreaseINR 17,344 crore (2008) or USD 3.5 Billion
Total equity IncreaseINR 2,117 crore (2008) or USD 500 Million
Employees 10889 (2008)

Andhra Pradesh Power Generation Corporation Limited is a power generating organization of Andhra Pradesh and one of the largest power-generating utilities in the country next to NTPC and Maharashtra. It undertakes operation and maintenance of the power plants and also setting up new power projects alongside upgrading the project's capacity.[2]


The government reforms in power sector led to the formation of APGENCO on 28 December 1998 and commenced operations from 1 February 1999.[2] The imbalance of the revenues against the cost of production, no significant reduction in technical losses and energy thefts, high cost purchases from IPP's, other SEB's gradually worsened the financial position of APSEB.

APSEB division[edit]

Government of Andhra Pradesh realizing the declining tendency of the financial position of APSEB and considering the recommendations made by committee it was unbundled into Andhra Pradesh Power Generation Corporation (APGENCO) & Transmission Corporation of Andhra Pradesh Limited (APTRANSCO) on 1 February 1999 by AP Electricity REFORMS ACT.[3]

APTRANSCO was further unbundled w.e.f. 1 April 2000 into "Transmission Corporation" and four "Distribution Companies" (DISCOMS). From Feb 1999 to June 2005 APTransco remained as single buyer in purchasing and selling of power to DISCOMs.[3]

APGENCO formation and split[edit]

Later, on 2 June 2014, when the state was bifurcated, APGENCO distributed all the assets, liabilities and power stations to both the states and Telangana Genco (TGGENCO) was formed for the newly formed Telangana state and APGENCO remained for Andhra Pradesh in accordance with the Andhra Pradesh Reorganisation Act, 2014.[4]

Power plants[edit]

The total installed capacity of APGENCO, after the formation of TSGenCo is 5159.6 MW comprising 3410 MW Thermal, 1747.6 MW Hydro and 2 MW Wind power stations. The Power Plants of APGENCO include thermal, hydel and wind based plants.[5][6]

Thermal projects[edit]

Sl. No. Project Inst.Capacity (MW) Total (MW)
1 Dr. Narla Tata Rao TPS 6×210+1×500 1760
2 Rayalaseema TPP 5×210 + 1×600 (Stage IV, Unit-6 under construction) 1650
Overall capacity in (MW) 3410

Note: Simhadri Super Thermal plant and Damoadaram Sanjeevaiah Thermal Plant are not considered as they are not under the ownership of APGENCO.

Hydel projects[edit]

Srisailam dam
Tungabhadra dam
Sr. No. Project Inst.Capacity (MW) Total (MW)
1 Chettipeta Mini Hydel 2x0.5 1
2 Donkarayi PH 1x25 25
3 Hampi Dam PH 4x9
(AP Share-28.8)
4 Lower Sileru PH 4x115 460
5 Machkund PH 3x17+3x23
(AP Share-84)
6 Nagarjuna Sagar RCPH 3x30 90
7 Penna Ahobilam PH 2x10 20
8 Srisailam RBPH 7x110 770
9 TB Dam PH 4x9
(AP Share-28.8)
10 Upper Sileru PH 4x60 240
Overall capacity (MW) 1747.6

Hydel projects (under construction)

Sr. No. Project Inst.Capacity (MW) Total (MW)
1 Polavaram HEP 12x80 960
2 Nagarjuna Sagar tail pond PH 2x25 50
Overall capacity (MW) 960

Non-conventional units[edit]

Sl. No. Project Inst.Capacity (MW) Total (MW)
1 Ramagiri Wind Mills 10x0.2 2
Overall capacity in (MW) 2

Source: Power Stations of AP after bifurcation into APGENCO and TGGENCO[7]

Operational performance[edit]

Though the performance of APGenCo thermal power stations in terms of reliability, availability and maintainability (RAM analysis) is one of the best in India,[8] its hydro power stations performance is not satisfactory as they break down frequently or not in working condition when required to perform at full capacity during the short period (four months) monsoon season.[9] The thermal efficiency (heat rate) of thermal power stations is not satisfactory to attain close to the rated / design values which is deciding parameter in the competitive electricity market (buyers market) whereas the fuel (coal) is costly in sellers market. Operating the thermal power stations in the range of 75 to 100% capacity in 'frequency follow mode' with good part load efficiency is the needful strategy in surplus electricity grid except during peak demand hours. Also Hydro power stations should perform well meeting all the functions such as power factor correction, peaking power generation, pumping water in pump mode and secondary power generation during monsoon season utilising total available water. This can be achieved by maintaining hydro power stations at availability more than 95%.[10]

See also[edit]


  1. ^ Welcome to APGENCO
  2. ^ a b "APGENGO overview". APGENCO. Retrieved 19 June 2014. 
  3. ^ a b "History of APSEB". Transmission Corporation of AP. Retrieved 19 June 2014. 
  4. ^ Sudheer Goutham (30 May 2014). "Power plants division between Andhra Pradesh and Telangana". Deccan Chronicle. Retrieved 7 June 2014. 
  5. ^
  6. ^ "Power projects of APGENCO". Retrieved 7 June 2014. 
  7. ^ "GO 29 Transfer Scheme – AP Electricity Reforms Act, 1998". 31 May 2014. Retrieved 7 June 2014. 
  8. ^ "APGenCo website main page". Retrieved 23 June 2014. 
  9. ^ "Power house at Srisailam submerged". Retrieved 23 June 2014. 
  10. ^ Managing historic flood in the Krishna river basin in the year 2009