PPN POWER GENERATING COMPANY PVT. LTD 160 MW Coal based Thermal Power Plant
SUMMARY OF THE PROJECT
PPN Power Generating Company Pvt. Ltd. (PPN) having its corporate office at Chennai, owns and operates a Combined Cycle Power Station of 330.5 MW capacity at villages of Pillaiperumalnallur and Manickapangu of Tharangambadi Taluk of Nagapattinam District, Tamil Nadu. The existing plant is designed for 100% natural gas firing or 100% naphtha firing or a mixture of natural gas and naphtha firing ( 70 % : 30%). Presently plant is operated using 100 % naphtha due to shortage of gas from PY-01 off shore well.
Since the prospects of availability of gas is remote, PPN is now planning to expand the power plant capacity from 330.5 MW to 490.5 MW by installing 160 MW coal based thermal power plant in existing plant premises.
The proposed power project will be located adjacent to the existing combined cycle power plant location. The proposed site is located in Pillaiperumalnallur and Manikkapangu villages near Thirukkadaiyur in Tharangambadi Taluka of Nagapatinam District, Tamil Nadu. The plant will be designed for base load operation with minimum plant design life of 25 years.The coal required for the proposed project will be sourced from Indonesia and other possible sources. Provision to fire Imported coal blended with pet coke (up to 50%) will also be explored based on air quality analysis. To cater both consumptive and condenser cooling water requirements, seawater will be used. The existing plant seawater intake and discharge structure will be used for expansion project.
The project site is located in Nagapattinam District of Tamil Nadu. The neighboring state Puducherry (Karaikal) is at an aerial distance of 8.2 km from the site boundary. The proposed site is well connected by road. National highway NH 45A from Nagapattinam to Cuddalore is about 2.5 km away from the proposed site. Thirukadayur town and Tharangambadi town are 2.5 km and 5.9 km from the site. Nearest Railway Station is Mayiladuthurai which is at distance of 22 km from the site. The nearest major airport is at Trichirapalli, which is about 150 km from the site. The nearest sea port is located in Karaikal which is about 35 km from the site. The Site elevation is about +3.5 above Mean sea levels. Topography of the proposed site ranges from relatively flat to slightly undulating and will require nominal Cutting and filling. About 89 acres of land is identified within the existing site boundary which is suitable for setting up the power project.
With the available land, fuel logistics and considering environmental requirements, it is proposed to install coal fired thermal power plant of 1 X 160 MW capacity. The power available for evacuation will be about 144 MW. The estimated auxiliary power consumption of about 16 MW (10%). The Plant Load Factor (PLF) being considered is 85% and plant availability upto 90% is considered. It is envisaged that the unit would be put in to commercial operation in about 32 months from NTP. Technical requirements of power evacuation from the proposed power plant will be PPN POWER GENERATING COMPANY PVT. LTD 160 MW Coal based Thermal Power Plant decided by the grid authority. The power delivery point will be firmed up based on the transmission study by grid authority. Sub critical steam generators of either Circulating Fluidized Bed Combustion or Pulverized fuel fired are proposed for this project.
Existing total project area is 436.7 Acres which is in industrial category. The Area required for expansion project will be about 89 Acres. Land is already in possession as the project is expansion of the existing power plant area. The proposed 89 acres of land will include 56 acres of processing area (Industrial area) and 33 acres of green belt. To meet both consumptive and condenser cooling water requirements, seawater will be used. The Existing plant seawater intake facility will be used for expansion project. Waste water generated will be collected in the outfall tank from where it will be delivered by a pump to the existing plant seal pit which delivers the sea water back to the sea through the existing sea water outfall system. The bottom ash and fly ash generated will be managed as per MoEF norms. While the sewage solid wastes generated within the plant will be treated and the products will be used horticulture purpose.
The proposed power project will be located adjacent to the existing plant within the existing plant site boundary. Additional land for right of way outside the present project site to connect the ECR/NH 45A Road needs to be procured/leased and the same is being undertaken.