MoP - Ministry of Power

The Status of on going projects is given below:-
1. Teesta HE Project Stage-V (510 MW), Sikkim
Dam concreting and HRT heading, benching, overt lining
and 91.50% invert lining of Head Race Tunnel (HRT)
completed. Excavation and lining of Desilting Chambers,
erection of steel liners in Pressure Shafts/Penstocks are
completed. Civil works of Power House and TRT have been
completed. Assembly of all the 3 generating units
completed. The Project is expected to become fully
operational by March 2008.
2. Parbati HE Project, Stage-II (800 MW), H.P
So far 100% excavation & 55% Dam concreting has been
completed. In HRT excavation of 79.50% and concrete
lining of 13% length have been completed. During Nov.’06
in HRT face-4, TBM was partly buried due to heavy ingress
of silt and water, causing total stoppage of work.
Refurbishment of TBM has been completed. The HRT,
particularly face-4 is the most critical work of the Project.
Excavation of both Inclined Pressure Shafts of length
1546m each with inclined TBM has been completed. In
Powerhouse excavation and 14% concreting had been
completed but in Feb.’07 the back hill slope of PH suffered
a slide causing a setback to the works. Slope Stabilization
works are in progress. E&M works have been started.
Supply of E&M and HM components is in progress.
3. Sewa HE Project Stage-II (120 MW), J & K
Complete excavation and 80% concreting of Dam is over.
In HRT, so far 89.40% excavation has been completed.
Face-7 of HRT is the most critical due to very bad geology.
There has been re-routing of tunnel twice. Excavation of
Surge Shaft and Powerhouse has been completed and
concreting is in progress. Excavation and concreting of
Pressure Shafts is in progress. Erection, Alignment &
Boxing up of generating units and auxiliaries is in progress.
Design & Engineering work of HM and fabrication of 1st
stage & 2nd stage embedded parts are in progress. The
project is now expected to be commissioned by June 2009.
4. Subansiri (Lower) HE Project (2000 MW),
Arunachal Pradesh
Major civil works contracts were awarded in December ’03
but start of works got delayed due to issues related to forest
clearance by MOEF and payment of NPV. The final forest
clearance was accorded on 12th of October, 2004 by MOEF.
Diversion Tunnels have been completed and river has been
successfully diverted. Adit to Pressure Shaft completed and
excavation of Vertical Pressure shafts are in progress. 57%
of Surge Chamber excavation and 97% of Power House
excavation completed so far. Further work is in progress.
E&M and HM works have also been awarded. The project
is now expected to be commissioned by Jan. 2012.
5. Teesta Low Dam Project, Stage-III (132 MW), West
Bengal.
In Barrage Bays 3 to 7, Intake and PH excavation is over
and concreting is in progress. PH civil works are the most
critical as slides in the PH back hill slope have delayed the
civil as well as E&M works. Supply and erection of E&M
and HM components is in progress. Draft Tubes for all the
4 units have been erected. On 27.07.2007 during flash
floods, the Coffer dam was overtopped and breached
resulting in flooding of the entire work area thus causing a
severe setback to the progress of works and delaying the
completion of Project. Restoration works are in progress.
The Project is now expected to be completed by
Sept.-Dec.’09.
6. Uri HE Project, Stage-II (240 MW), J&K
Investment approval has been accorded on 01.09.2005 with
commissioning date as Nov. 2009. Major civil works have
been awarded to M/s HCC Ltd. on 21-9-05 but due to major
earthquake that hit the area in Oct.’05, start of major civil
works was delayed. River diversion achieved on
21.01.2007. Riverbed excavation started but progress was
affected due to washing away of cofferdam. All adits to HRT
and TRT completed, and 89% & 57% excavation of heading
completed in HRT & TRT respectively. Excavation of MAT
to Power House is nearing completion. E&M works
awarded to M/s Alstom on 29th Dec.’06. HM works awarded
to M/s Om Metals-SPML (JV). The project is expected to
be commissioned by August 2010.
7. Chamera HE Project, Stage-III (231MW), H.P
Investment approval has been accorded on 1.9.2005 with
commissioning date as Aug.2010. All the major civil works
awarded to M/S H.C.C Limited. The river has been diverted.
HRT & TRT excavation 54% & 92% completed respectively.
MAT to PH, Pilot tunnel to PH cavern and adit to PS bottom
completed. 93% Power House excavation has been
completed. E&M work was awarded to M/s Alstom and HM
works to M/s Om Metals-SPML(JV). The project is expected
to be completed as per schedule by August 2010.
8. Teesta Low Dam Project, Stage-IV (160MW), West
Bengal
Investment approval has been accorded on 30.9.05 with
commissioning date as Sept.2009. Civil works package was
awarded to M/S HCC Ltd. with completion by Aug’09.
Formal forest clearance has been received on 30/3/06 and
forestland was handed over to NHPC on 20.04.06. The 1st
Stage diversion was achieved on 30.1.07. So far major part
of excavation for Dam component & Energy Dissipaters,
PH, Cellular wall and TRC has been completed. Cellular
Wall and Powerhouse works are critical. HM and E&M
packages have been awarded to M/s BHEL and M/s Om
Metals. During heavy floods on 17.7.2007 the Coffer Dam
was breached and whole Cellular Wall, Dam & Powerhouse
area got inundated. Restoration Work got affected due to
recurrence of flash floods on 27th July 2007. Restoration
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