Review of Transmission System
associated with Palatana GBPP
by
Joint Secretary (Transmission),
Ministry of Power
Govt. 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 onwards
Commissioning Schedule of ATS : Progressively by 34
month from Investment Approval accorded by BOD in
Feb.’10 i.e. Dec.’12
Anticipated Schedule of ATS : Progressively from Mar.’12
to June.’13.
Z IR O
ALONG
P A L L A T A N A -B O N G A IG A O N T R A N S M IS S IO N S Y S T E M
D A P H R IJO
NAM SAI
TEZU
RANGNADI
3 x135 M W
R O IN G
2 X 15 M V A
B O N G A IG A O N
2 X 15 M V A
G UW AHATI
AZARA
P A S IG H A T
BTPS
(750 M W )
2 X 15 M V A
2 X 315 M V A
B A L IP A R A
2 X 315 M V A
M A R IA N I N E W
A G IA
M 'K C H U N G
M 'K C H U N G
(N 'L A N D )
B Y R N IH A T
2 X 50 M V A
M IS A
S IL C H A R
2 X 315 M V A
KATHALGURI
M A R IA N I
(A S S A M )
2 X 200 M V A
IM P H A L 2 X 50 M V A
PALLATANA
(726 M W )
P K BARI
2 X 100 M V A
M E L R IA T
To be charged
at 132 KV
LEGEND
S R IK O N A
To be charged
at 132 KV
S U R Y A M 'N A G R
M E L R IA T (M 'Z M ))
P O W E R G R ID S co p e
2 X 50 M V A
B A D A R P U R (P G )
N E T C S co p e
A S S A M S co p e
M E G H A L A Y A S co p e
G en . A g en cy S co p e
H A L A IK A N D I
E X IS T IN G S ystem
P A L L A T A N A -B O N G A IG A O N T R A N S M IS S IO N S Y S T E M -U N IT 1
S IL C H A R
2X200 M VA
Mar.’12
Mar.’12
LEGEND
P O W E R G R ID S co p e
PALLATANA
N E T C S co p e
(36 3M W )
Feb.’12
Jan.’12
G e n . A g e n c y S co p e
S R IK O N A
B A D A R P U R (P G )
Mar.’12
H A L A IK A N D I
P A L L A T A N A -B O N G A IG A O N T R A N S M IS S IO N S Y S T E M -U N IT 1 & 2
B O N G A IG A O N
GUW AHATI
AZARA
2X315 M VA
A G IA
Aug.’12
Jun.’12 *Subject to forest clearance by Sept.’11
B Y R N IH A T
S IL C H A R
2X315 M VA
LEGEND
P O W E R G R ID S c o p e
Mar.’12
Mar.’12
2X200 M VA
N ETC Scope
A SSA M Scope
M EG H A LA YA Scope
Jun.’12
PALLATANA
(7 2 6 M W )
P K BARI
2X100 M VA
4 0 0 k V L in e
S U R Y A M 'N A G R
E X IS T IN G S y s te m
4 0 0 k V L in e
C h a rg e a t 1 3 2 k V
C h a rg e a t 1 3 2 k V
Mar.’12
G en. A gency Scope
Jan.’12
S R IK O N A
Feb.’12
B A D A R P U R (P G )
Mar.’12
H A L A IK A N D I
TRANS. SYSTEM REQUIRED FOR EVACUATION OF POWER
Required to draw power from Unit#1 of Palatana GBPP
 400 KV D/c Palatana GBPP–Silchar (PG) Line-246 km-Ant.
Mar.’12
 132 KV D/c Silchar – Badarpur(PG) Line-21km (For Assam to
draw its share)- Ant. Feb.’12
 132kV S/c Silchar- Srikona line -3 Kms. (For Assam to draw its
share) - Ant. Jan.’12
 132kV S/c Silchar – Hailakandi line –17 Kms. (For Assam to draw
its share) - Ant. Mar.’12
 New 400/132 KV S/S at Silcher Ant. – Mar’12 (Priority Bays)
 Bay extension at existing s/s at Srikona (AEGCL) - Ant. Mar.’12
 Bay extension at existing s/s at Badarpur (PGCIL) - Ant. Mar.’12
Required to draw power from unit#2 of Palatana GBPP
 400 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.’12
 Bay extension at existing s/s at P.K. Bari (TSECL)—Jun.’12
 New 400/132 GIS Station at Byrnihat (Under Consultancy of
MeSCL by POWERGRID)—Aug.’12
Other Strengthening Scheme
For Mizoram
 Silchar – 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 capacity
 Bay extension at existing s/s at Melriat (Mizoram)----Uncertain (*)
(*)- Mizoram State now have proposed for new 400 KV S/s to CEA.
For Nagaland
 LILO 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 -1km
 220 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 Schme
For Manipur
 Silchar - Imphal 400kV D/c line (charged at 132kV) 140km—
Jun.’13
 LILO of Loktak- Imphal(PG) 132kV S/c line at Imphal – 6kmDec.’12
 Bay extension at Existing Imphal s/s- Dec.’12
For Aurnachal Pradesh
 132kV S/c Pasighat – Roing –Tezu line - 70+60 km Ant.Jun.’13
 132kV S/c Tezu – Namsai line – 90km Ant.-Jun.’13
 New 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 Clearnce
Name 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)
0
Nil
Assam
PalatanaSurajmaninagar
400 KV D/C Line
(35 Km)
1 Km
2.161 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)
1.49
6.89 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.
No forest area involved.
Name of Line
Line
length in
forst area
Km
Stat
e
Date of
Subm. of
forest
proposal (to
DFO / NO
Remarks
Silchar- Melriat
(New)
400 KV line
(160 Km)
81.5 Kms
375.66 Ha
Miz
ora
m
22.07.2010
Forest proposal forwarded to MoEF, Delhi by
Govt. of Mizoram for first stage clearance on
14.09.2011.
5.2 Kms
22.7 Ha
Ass
am
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 Kms
4.7 Ha
Miz
ora
m
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 Kms
43.24 Ha
Ass
am
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
Man
ipur
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
area
Km
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- Roing
132 KV S/C line (
on D/C tower)
(67 Km)
25.35
Kms
68.45 H
Arunac
hal
Pra
des
h
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-Namsai
132 KV S/C line
(on D/C tower)
(90 Km)
62.92
Kms
169.88
Ha
Arunac
hal
Prades
h
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 STATE
Melriat(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 STATE
Silcher- Imphal line is passing through insurgency area. Police protection to
be provided.
Contdd..
ASSAM STATE
 Silchar-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 AgiaGuwahati 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 Problem
 Local 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.
Assam
 Forest 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 STATE
 MeSEB have assigned execution of 2x315MVA, 400/220kV New
Substation at Byrnihat along with LILO of one ckt. of SilcharBongaigaon 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 STATE
 TSECL to ensure handing over of fronts at Surajmaninagar substation
by Dec.’11 so as to ensure readiness of bays for PalatanaSurajmaninagar 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