DETAIL NOTE ON PROJECT

Transcription

1 DETAIL NOTE ON PROJECT BRIEF DETAIL OF 400kv D/C OPGC JHARSUGUDA (SUNDARGARH) TRANSMISSION LINE BEING CONSTRUCTED BY ODISHA GENERATION PHASE II TRANSMISSION LIMITED (OGPTL) The government of India has identified the power sector as a key sector of focus to promote sustained industrial growth. It has embarked on an ambitious mission - Power for all backed by extensive reforms to make the power sector more attractive for private sector investment and participation. In this regard Common Transmission system for Phase II generation projects in Odisha and immediate Evacuation system for OPGC (1320MW) project in Odisha consisting of establishment of transmission lines i) Jharsuguda (Sundargarh) Raipur Pool 765KV D/C line in the state of Odisha and Chattisgarh and ii) OPGC Jharsuguda (Sundargarh) 400KV D/C line with triple snow bird conductor, the Central Government (Power Ministry) has entrusted PFC CL (Power finance corporation), with the task of selecting an Independent Private Transmission Company (IPTC) on 100% Private investment for the above scheme. As per bidding procedure, PFCCL has invited bids for selection of bidders as prospective IPTC for establishment of transmission in which Sterlite Grid 3 Limited participated as bidder. Subsequently, Power Finance corporation (PFC) through the process of international competitive bidding (ICB) process selected Sterlite Grid 3 Limited as successful bidder for implementation of the above project through its shell company i.e. Odisha Generation Phase II Transmission Limited as IPTC on Build, Own and Operate (BOO) Basis and consequently the Letter of Intent (LOI) was being issued. The primary beneficiary(s) of the above project are North Bihar Power Distribution Company Limited, South Bihar Power Distribution Company Limited, Jharkhand Bijli Vitran Nigam Limited, Damodar Valley Corporation, GRIDCO Limited, Energy & Power Department, Govt. Of Sikkim and West Bengal State Electricity Distribution Company Limited. Ministry of power, Government of India has also accorded approval under section 68(1) of Electricity Act 2003, to implement these lines. The transmission line routes have also been notified in Government of India, Gazette. Transmission line projects are environmentally friendly and do not involve any disposal of solid effluents and hazardous substances in land, air and water. The constructional features of 400 kv Transmission line is such that it is not affecting the environment as it s not dividing the existing forest because of long spans between the towers (400 Mtrs). Layout of transmission line follows along the forest road / forest block boundary thus involving minimum tree felling and also allowing free movement of birds due to high towers heights Mtrs. The ground clearance for lower most conductors is 8.84 Meters. The spacing between the phase conductors is (4 Mtrs) as well. A very small space is required for the construction of tower foundations (25 X 25 Mtrs). The tower foundations are under the ground (3.5 Mtrs) and a small portion of 0.50X0.50 Mtrs are elevated as plinth.

2 The 400Kv D/C OPGC Jharsuguda (sundargarh) Transmission Line is starting from OPGC Banharpali IB Thermal Power Plant end terminating at 765KV/400KV PGCIL Switchyard lacated at Kenapali, Sundargarh passing Jharsuguda and Sundargarh District of Odisha. The forest area cover is in both districts under Sundargarh Forest Division and Jharsuguda Forest Division. It will create the employment opportunity for local villagers during the construction phase (18 Months) and later on for maintenance of Transmission line, hence affecting the life of village people directly. In indirect as the project is to strengthen the power system in Odisha, hence would encourage industries in the region resulting employment opportunity. TRANSMISSION LINE DETAILS:- 400KV D/C OPGC- JHARSUGUDA (SUNDARGARH) TRANSMISSION LINE Sr. No. Item Details 1 Total Length of OPGC Jharsuguda (Sundargarh) Transmission Line 2 District details and forest division details through which line is passing 3 Area of the Reserve forest, Protected forest, DLC, Revenue Forest etc. through which line passes. 4 Total No. of Tower to be erected in total and affected tower in Forest. 5 Total Line length affected due to forest (Stringing Stretch) Km Jharsuguda District Lakhanpur & Jharsuguda Tehsil Jharsuguda Forest Division Jharsuguda & Bhrajanagar Range Sundargarh District Lephripara & Tangarpali Tehsil Sundargarh Forest Division Ujalpur Range Jharsuguda DFO Ha (2.59 Km) Sundargarh DFO Ha (3.96Km) Total: Ha (6.55km) RF Ha (0.604Km) Revenue, DLC, Sabik Ha (5.947Km) Total towers: Nos. Affected Tower in each Division Jharsuguda DFO 10 Nos. Sundargarh DFO 13 Nos KM

3 6 Height of Tower Mtrs 7 Maximum width of Right of Way for 400KV D/C Transmission Line 8 Minimum Clearance allowed between conductors of transmission lines and Trees 46 Meters (For 400 KV Double Circuit) For 400KV, 5.5 Meters. (As per the forest act, Table-27.2 )

4 Comparison Statement for all 3 Routes for OPGC TO Jharsuguda(Sundargarh)400 kv D/C Line SL No Description Alternate I (Proposed) Alternate-II Alternate-III 1 BEE Line Length (KM) Route Length (KM) No. of Angle Points Revenue/Reserved/Protected Forest Area (Ha.) Density of trees other than forest Medium High High 6 Wild Life Sanctuaries / National Parks 7 River Crossing (Major) 6 Nos 1 Nos 4 Nos IB River Ichha River IB River Bhedan River Bhedan River Ichha River 8 National Highway 1 Nos 2 Nos 2 Nos NH-200 NH-200 NH Railway Crossing 04 NOS. 04 NOS. 04 NOS. Railway Line (Electrified) U/C,JSG- MCL Railway Line (Electrified) U/C,JSG- MCL Railway Line (Electrified) U/C,JSG- MCL Railway Crossing ( Electrified ) Railway Crossing ( Electrified ) Railway Crossing ( Electrified ) Railway Crossing (Non Electrified) Railway Crossing (Non Electrified) Railway Crossing (Non Electrified) Railway Line (Non Electrified) Railway Line (Non Electrified) Railway Line (Non Electrified) 10 Major Power Line Crossings (132 KV and Above) A 132kv lines 02 NOS. NIL 02 NOS. 132 kv S/C BDP- BrajrajNagar Line 132 kv D/C BDP - Jurabaga Line 132 kv D/C BDP - Jurabaga Line 132 kv D/C BDP - Jurabaga Line B 220 kv LINE 06 NOS. 4 NOS. 5 NOS. 220 kv D/C BDP- Line 220 kv S/C PGCIL BDP-KRB Line 220 kv D/C BDP- Line 220 kv S/C PGCIL BDP-KRB Line 220 kv D/C BDP- OPGC 1st Line 220 kv S/C PGCIL BDP-KRB Line 220 kv D/C BDP- OPGC 1st Line 220 kv D/C BDP- OPGC 2nd Line 220 kv D/C BDP- OPGC 1st Line 220 kv D/C BDP- OPGC 2nd Line 220 kv D/C BDP- OPGC 2nd Line 220 kv D/C BDP- OPGC 2nd Line 220 kv D/C BDP- OPGC 2nd Line

5 C 400 KV line 05 NOS. 05 NOS. 05 NOS. 400 kv SNG- INB EWH No wire 400 kv SNG- INB EWH No wire 400 kv SNG- INB EWH No wire 400KV D/C Rourkela- Raigarh Line 400 KV U/C LINE 400 KV U/C LINE 400KV D/C Raipur- Rourkela Line 400KV D/C Rourkela- Raigarh Line 400KV D/C Rourkela- Raigarh Line 400 kv Transmission Line 400KV D/C Raipur- Rourkela Line 400KV D/C Raipur- Rourkela Line 400 KV D/C IB -Meramundali U/C Line 400 KV D/C IB -Meramundali U/C Line 400 KV D/C IB -Meramundali U/C Line D 765 kv line 04 NOS. 03 NOS 04 NOS. 765 kv D/C RPR Sundargarh U/C Line 765 kv D/C RPR Sundargarh U/C Line 765 kv D/C RPR Sundargarh U/C Line 765 kv D/C SNG- KPS 765 kv D/C SNG- KPS 765 kv D/C SNG- KPS 765 kv SNG - DMG U/C Line 765 kv SNG - DMG U/C Line 765 kv SNG - DMG U/C Line Proposed 765 Kv SNG- DARLIPALLI U/C Line Proposed 765 Kv SNG- DARLIPALLI U/C Line 13 Places of Archeological Importance 14 Terrain condition 15 Places of historical / cultural / religious / tourist importance 16 Line Pass through any Town/ City No No No 17 Line Pass through any Army area No No No Results & Conclusions Referring to comparative statement for alternative routes and angle point summary, 1 Route is positioned on left side of B-Line & another 2 Routes are positioned on Right side of Bee-line.After initial inspection of physical maps updated with satellite images and walk over survey, all three corridors were explored for the best route alignment. Special attention has been given to the existing EHV lines, Protected forest, Reserved forest, river crossings, national highways, minimum route length and habitation including plantation. In route-2&3 the route traverses through mining areas, whereas route-1 traverses outside corrider of mining areas. After detailed analysis, Alternate 1 has been observed as most viable route for alignment due to the proximity to the main thoroughfares in the area, construction as well as operation & maintenance problems would be much less in route-1.