Review of Transmission System associated with Palatana GBPP

by Joint Secretary (Transmission),

Ministry of PowerGovt. of India 15.03.2012

Beneficiary States :Constituents of NR & NER (JV) :Constituents of NER (POWERGRID)

Project Cost :Rs. 1951 Cr. Generation Sch. : Palatana (2x363 MW) U#1-May.’12, U#2-Jun.’12 (Last commitment)Bongaigaon (3x250MW) U#I –July.’12 onwardsCommissioning Schedule of ATS : Progressively by 34 month from Investment Approval accorded by BOD in Feb.’10 i.e. Dec.’12Anticipated Schedule of ATS : Progressively from Mar.’12 to June.’13.

 

To be charged at 132 KV

To be charged at 132 KV

Mar.’12 Mar.’12

Feb.’12 Jan.’12

Mar.’12

Mar.’12

Jun.’12 *Subject to forest clearance by Sept.’11

Jan.’12

Mar.’12

Aug.’12

Jun.’12

Feb.’12

Mar.’12

Mar.’12

TRANS. SYSTEM REQUIRED FOR EVACUATION OF POWER Required to draw power from Unit#1 of Palatana GBPP400 KV D/c Palatana GBPP–Silchar (PG) Line-246 km-Ant.

Mar.’12132 KV D/c Silchar – Badarpur(PG) Line-21km (For Assam to

draw its share)- Ant. Feb.’12132kV S/c Silchar- Srikona line -3 Kms. (For Assam to draw its

share) - Ant. Jan.’12132kV S/c Silchar – Hailakandi line –17 Kms. (For Assam to

draw its share) - Ant. Mar.’12New 400/132 KV S/S at Silcher Ant. – Mar’12 (Priority Bays)Bay extension at existing s/s at Srikona (AEGCL) - Ant. Mar.’12Bay extension at existing s/s at Badarpur (PGCIL) - Ant. Mar.’12

Required to draw power from unit#2 of Palatana GBPP400 KV D/c Silcher–Bongaigaon Line-415 Km. (NETCL-Main

Trunk Line)– Efforts are made to complete matching commissioning of unit#2 i.e. by June.’12 subject to forest clearance by Sept.’11.

400kV D/c Palatana - Surajmaninagar (TSECL) line-35km (For Tripura to draw its share) – Ant. – Mar.’12

400kV D/c Silchar – Purba Kanchan Bari (TSECL) line-122km (For Tripura to draw its share) – Ant. – Jun.’12

LILO of one Ckt. of 400 Kv D/C Silcher – Bongaigaon at Byrnihat (For Meghalaya to draw its share) – Ant. – Jun.’13 * (Now targeted to be completed by Aug.’12)

400 KV Bay extension at 400/220 KV Bongaiaon S/S (PGCIL)Bay extn. at existing s/s at Surajmaninagar (TSECL)—Apr.’12Bay extension at existing s/s at P.K. Bari (TSECL)—Jun.’12New 400/132 GIS Station at Byrnihat (Under Consultancy of MeSCL by POWERGRID)—Aug.’12

Other Strengthening SchemeFor MizoramSilchar – Melriat (New) 400kV D/c line (charged at 132kV) – 160km

(Ant. Compl.- Mar.’13 subject to forest clearance by Dec.’11))Melriat (New) – Melriat(Mizoram) interconnecting 132kV D/c line – 30km

— Uncertain (*)400/132 KV New S/S at Melriat with 6x10MVA transformation capacityBay extension at existing s/s at Melriat (Mizoram)----Uncertain (*)

(*)- Mizoram State now have proposed for new 400 KV S/s to CEA.

For NagalandLILO of Kathalguri – Misa 400kV S/c line at Mariani (New)–2km (Mar.’13)Mariani(new)-Mokokchung (PG) 220kV D/c line – 56km (Mar.’13)Mokokchung (PG)-Mokokchung (Nagaland) 132kV D/c line -1km220 KV New S/S at Mariani (Mar.’13)132/33 KV New S/S at Mokakchung with 6x10MVA transformation

capacity (Ant. Jun.’13; Best efforts:- Mar.’13)Bay extension at existing s/s at Mokakchung (Nagaland) (Mar.’13)

Other Strengthening SchmeFor ManipurSilchar - Imphal 400kV D/c line (charged at 132kV) 140km—

Jun.’13LILO of Loktak- Imphal(PG) 132kV S/c line at Imphal – 6km-

Dec.’12Bay extension at Existing Imphal s/s- Dec.’12

For Aurnachal Pradesh132kV S/c Pasighat – Roing –Tezu line - 70+60 km Ant.-

Jun.’13132kV S/c Tezu – Namsai line – 90km Ant.-Jun.’13New s/s at Roing, Tezu & Namsai with transformation

capacity of 2x10 MVA Ant. - Roing & Tezu by Dec.’12 & Namsai-Jun.’13

Bay extension at Passighat S/S of Arunachal State

Forest ClearnceName of Line Line

length in forst area

Km

State Date of Submission of forest proposal (to DFO / NO)

Remarks

Silchar- Badarpur 132 kV D/C Line (21 KM)

0Nil

Assam   No forest area involved.

Palatana- Surajmaninagar 400 KV D/C Line (35 Km)

1 Km2.161 Ha

Tripura 02.07.2010 Resubmitted to Nodal officer on 06.09.2011. Expected to be forwarded to RMoEF shortly by Nodal Officer.

Silchar-Purba Kanchan Bari (TSECL)400 KV D/C Line (122 Km)

1.496.89 Ha

Tripura 16.07.2010 DFO, Koilasahar submitted the proposal to Nodal Officer on 20.04.11 . Proposal resubmitted to Nodal Officer by CF, Silchar on 19.09.11 for processing and onward submission to Secy, Forest, GOA.

Name of Line Line length in forst area

Km

State

Date of Subm. of

forest proposal (to

DFO / NO

Remarks

Silchar- Melriat (New)400 KV line (160 Km)

81.5 Kms375.66 Ha

Mizoram

22.07.2010 Forest proposal forwarded to MoEF, Delhi by Govt. of Mizoram for first stage clearance on 14.09.2011.

5.2 Kms22.7 Ha

Assam

02.09.2010 1.2 Kms paddy field locations described as R.F area by Forest Deptt. Revised proposal submitted to Nodal Officer on 24.05.2011 & forwarded to CF, Silchar on 23.09.11.

Melriat (New)- Melriat (Mizo.)132 KV D/C Line (6 Km)

1.85 Kms4.7 Ha

Mizoram

22.07.2010 Proposal is now being processed by DFO, Aizawl. Identification of degraded forest land for compensatory afforestation is going on.

Silchar- Imphal (New)400 KV D/C line (140 Km)

9.4 Kms43.24 Ha

Assam

23.07.2010 Revised proposal has been submitted to Nodal Officer on 24.05.2011 and under processing at DFOs end since 30.05.2011.

30 Kms.135.24 Ha

Manipur

19.07.2010 Proposal forwarded by Secy, Forest, GoM to MoEF, Delhi on 01.07.2011. MoEF instructed RMoEF, Shillong to carry out site inspection.

Name of Line Line length in forst

areaKm

State Date of Submission

of forest proposal (to DFO / NO)

Remarks

Mariani (New) - Mokokchung 220 KV D/C Line (56 Km)

12.92 Kms

32.02 Ha

Assam,

30.07.2010 Joint inspection completed along with forest Officials on 09/03/2011. The Proposal is now with DFO, Jorhat for further processing.

Pasighat- Roing132 KV S/C line ( on D/C tower) (67 Km)

25.35 Kms

68.45 H

Arunachal Pradesh

14.09.10 Proposal is forwarded to respective DFO by Nodal Officer. Joint tree innemuration not yet started. Division wise forest proposals (One each for Pasighat and Dibang/Roing Forest Division) to be resubmitted after completion of detail survey in the forest area.

Tezu-Namsai132 KV S/C line (on D/C tower) (90 Km)

62.92 Kms

169.88 Ha

Arunachal

Pradesh

14.09.10 Proposal is forwarded to respective DFO by Nodal Officer.DFO, Namsai has already given intimation to concerned Range Officers for joint verification. Joint tree enumeration started from Tezu end in Tafragram RF from 25.06.2011.

ISSUES WITH VARIOUS CONSTITUENTS

MIZORAM STATEMelriat(POWERGRID)- Melriat(Mizoram) was planned at 132 kV D/c line for supplying power to Mizoram. Mizoram Govt. later on planned to evacuate power at Shhmui instead of Melriat. Recently Mizoram State have asked to construct 400 KV Line instead of 132 KV as they have planned to construct 400 KV s/s at Shhmui. Matter referred to CEA. Delay in implementation of downstream line shall affect power drawl by Mizoram state as well as commissioning of PGCIL system.

MANIPUR STATESilcher- Imphal line is passing through insurgency area. Police protection to be provided.

Contdd..ASSAM STATESilchar-Hailakandi 132 kV D/c line:- AEGCL yet to acquire land for

Hailakandi s/s. Till the availability of Halaikandi S/S, Silcher–Halakandi Line is planned to connect with 132 KV S/C Pancgram–Dullavchara line as contingency arrangement.

LILO of Silchar-Bongaigaon 400kV D/C line at Azara; LILO of Agia-Guwahati 220kV New Substation at Azara; 2x315MVA, 400/220kV New Substation at Azara 63MVAR line reactor in Silchar-Azara 400kV line at Azara end and 63MVAR Bus reactor at Azara

Silcher S/S- Law & Order ProblemLocal miscreants have disturbed the site work various times & threaten

the staff. Recently group of local people entered in s/s compound and taken away T&P as well as materials. Armed Police force needs to be deployed immediately. Matter taken up with State as well as District authority since long, action awaited.

AssamForest Clearance :-Palatana- P.K.Bari (TSECL) 400 KV D/C Line :-

Proposal now forwarded to Nodal Officer by CF, Silchar on 19.09.11 for processing and onward submission to Secy, Forest, GoA. Being pursued at Nodal Office for early disposal. .

Silchar- Melriat (New)400 KV line) :-DFO forwarded proposal to CF, Silchar on 23.09.2011 & being pursued at CF, Silchar for expedious processing.

Silchar- Imphal (New)400 KV D/C line: Proposal is with DFO, Cachar since 30.05.2011.

Contdd..

MEGHALAYA STATEMeSEB have assigned execution of 2x315MVA, 400/220kV New

Substation at Byrnihat along with LILO of one ckt. of Silchar-Bongaigaon 400kV D/C line at Byrnihat to POWERGRID as consultancy project. All awards placed by POWERGRID in Aug.’11. Land for S/S yet to be handed over. Last commitment :- to handover land by 15.08.2011 in Secy. (DoNER) meeting .

2nd stage clearance (FRA Issue) for Silcher–Bongaigaon Line, Meghalaya portion.

TRIPURA STATETSECL to ensure handing over of fronts at Surajmaninagar substation

by Dec.’11 so as to ensure readiness of bays for Palatana-Surajmaninagar 400 kV D/c line by Mar.’12.

Tripura Palatana- Surajmaninagar (TSECL) 400 KV D/C Line :- Nodal Officer to

forward proposal to RMoEF shortly. Silchar-Purba Kanchan Bari (TSECL) 400 KV D/C Line:-Proposal held

up at Nodal Officer for the FRA compliance certificate for which DC, North Tripura is being pursued.

Arunchal Pradesh Pasighat s/s and Along-Pasighat 132 kV line to be executed by Govt. of Arunachal Pradesh to ensure the power supply to Roing, Tezu and Namsai areas. POWERGRID has provided 2 nos. of 33kV bay for 33 kV take off from these substations. It is requested that Arunachal Pradesh may identify the 33 kV take off arrangement from these sub-stations

Contdd...

Thank you