4. GENERATION
• Jharkhand State Electricity Board: The Jharkhand State
Electricity Board operates 2 generation plants- Patratu
Thermal Power Station (PTPS) and Sikidiri Hydel Power
Plant (SHPS) within the state. The current status of the
plants is provided below.
• Patratu Thermal Power Station: The plant is located in
Patratu, Ramgarh having a total installed capacity of 840
MW. However the capacity is de-rated to 770 MW owing to
operational disabilities. The details are provided as we
progress.
• The plant includes 10 units and the first unit was
commissioned in 1966. The table belowprovides the
commissioning dates and the de-rated capacities of each of
the 10 units along withcurrent status.
5.
6. • As depicted it can be noted that only unit 4&6 are
currently operational in FY 2012-13. Thus out of a
total installed capacity of 840 MW only 150 MW
is operational and de-rated capacity of which is
130 MW.
• The latest plant (Unit No 10) was commissioned
in 1986 and is aged at 26 years. The average life
of a thermal plant is considered to be 25-30
years. Age of other units of PTPS is in the range of
28 to 46 years.
• Unit no.3 and Unit no 5 having de-rated capacity
of 50 MW and 90 MW resp. are currently being
phased out as per CEA recommendation.
7. Sikidiri Hydro Plant:
The plant is located in Muri region of Jharkhand, has installed capacity of 130 MW
comprised of two 65 MW units. Before the formation of Jharkhand the plant was
meant to cater to the peak demand in the state of Bihar except rainy season when
the plant was run for 24 hours. The plant is designed for continuous operation at
reservoir level of 1925 feet. However, during discussions with JSEB team, it was
found out that the water level at the reservoir is above 1925 feet only 3-4 months in
a year. The reason being the fact that the same reservoir is used to supply water to
the town of Ranchi. Also, the quantity of water in the reservoir is reported to be
higher due heavy silting. As such the generation of Sikidiri plant has been
unpredictable.
Overhaul of the plant, Power Canal, fore bay dam etc. is planned for Sikidiri Plant in
FY 2012-13 for a proposed cost of Rs. 10 crore. Further, JSEB plans to undertake
R&M and LE of both units of the plant for a proposed cost of Rs. 100 crore.
8. Tenughat Vidyut Nigam Limited:
TVNL was constituted in the year 1987 as a wholly owned unit of Government of
Bihar undertaking. It operates 2 thermal units of 210 MW generation capacities in
the state of Jharkhand. Unit I started its commercial operation in September 1996
followed by Unit II in September 1997. The Corporation supplies 100% of the
power generated to JSEB for distribution. The existing PPA with JSEB has expired on
August 1 2010 and till date a renewed PPA has not been signed. However, as JSEB
continues to procure power from TVNL and based on a clause of the existing PPA
currently all the provisions of the existing PPA are applicable till new PPA is entered
into. The actual net generation of TVNL stands at 2277.37 MUs in 2011-12 reduced
from 2453.69 MUs in 2010-11. Plant load factor for 2010-11 stands at 66.69% and for
2011-12 at 61.73%. Auxiliary consumption is in the range of 9% to 10% and station
heat rate averages to around 3000 kCal/kWh. Currently there is a litigation
regarding ownership of TVNL between Government of Jharkhand and Government of
Bihar pending with the Supreme Court. Actual supply to JSEB stands at an average of
1946 MUs during 2007-08 to 2011-12.
9. Bokaro Power Supply Corporation:
BPSCL is a 50:50 JV between SAIL and DVC formed for the purpose of supplying
power in contingent situations to the Bokaro Steel Plant. The plant is captive in
nature, located in Bokaro Steel Plant and having a total generation capacity of 302
MW thermal power plant.
Damodar Valley Corporation:
Damodar Valley Corporation plays a major role in meeting the power supply
demand in the Damodar valley region. It operates a total generation capacity of
4857.2 MW (Thermal & Hydro combined) of which 1604 MW (Thermal & Hydro
combined) is generated within the geographical boundary of Jharkhand. The rest
is produced in West Bengal. The below table lists the power
generation within the state of Jharkhand.
10.
11. Maithon Power Limited (JV of Tata Power & DVC):
MPL is a 76:24 joint venture between DVC and Tata Power located in Dhanbad having
a total installed capacity of 1050 MW (2 X 525 MW). Unit I of 525 MW capacity was
commissioned in September 2011 and Unit II of the same capacity was recently
commissioned in July 2012. Of the first unit of capacity 525 MW, 330 MW is being sold
to NDPL (Delhi) and BSES (Rajdhani) through Case I bidding; 45 MW is sold in the open
market and balance 150 MW is sold to DVC as per tariff determined by Commission.
Tata Power Limited:
The main generating station of Tata Power in Jharkhand is the
Jojobera Plant having 5 units at a total installed capacity of 547.5 MW. Unit I has a
capacity of 67.5 MW followed by 120 MW each for Unit II, Unit III and Unit IV. In 2011
the commercial operation of Unit V began having an installed capacity of 120 MW. All
of the generation capacity is used to power steel works of Jamshedpur Tata Steel
plant, supplying power to consumers of steel works and city of Jamshedpur by TSL.
12. Upcoming Private Power Plants:
Corporate Power Ltd, a special purpose vehicle of Abhijeet Group is developing a
thermal power plant of 4 units constituting a total capacity of 1080 MW in the state
of Jharkhand. The project is divided into 2 phases, each commissioning 2 units of 270
MW. Anticipated commissioning for Unit 1 is scheduled for September 2012 and that
of Unit 2 is December 2012. Phase 2 with a combined capacity of 540 MW (2 X
270MW) is expected in June 2013 and Sep 2013 resp.
Adhunik Power company limited is another IPP developing 2 Units of 270
MW each in Jharkhand and is expected in November 2012 and June 2013 resp. Both
these unit upon being operational would play a major role in the power sector of the
state.
13.
14. TRANSMISSION
JSEB has also been engaged in electricity transmission related
activities in the state of Jharkhand. Presently, JSEB is also
functioning as Transmission Utility (STU). JSEB
has the responsibility of construction and maintenance of its
transmission system. The below figure shows the power
generation plants and transmission network in
Jharkhand. It depicts the existing and under construction
capacities also. Power Map explains the linkages between
different states with Jharkhand.
15.
16.
17. DISTRIBUTION
Jharkhand State Electricity Board:
JSEB being the state utility in generation, transmission and distribution has
the highest extent of reach in the state of Jharkhand. It typically supplies
power in the DVC command area (7 districts falling under the purview of the
DVC Act) at 11kV or less and in the remaining 17 states at both HT and LT
levels. Energy sales of JSEB has increased from 2770 MUs in 2003-04
to 8400 MUs (as approved in T.O 2012-13) in 2012-13. That accounts for a
CAGR of 13.17% p.a.
18. JUSCO: Jamshedpur Utilities and Services Company Limited is a subsidiary of
Tata Steel managing the power division. The company was incorporated in August 2003
to separate the town related services and power distribution in Jamshedpur. It
supplies power to Jamshedpur as a franchisee of Tata Steel Limited as well as to the
revenue district of Saraikela – Kharsawan. JUSCO serves a small customer base of
365 customers (as of March 2011) but substantial additions are estimated bringing
the count to 545 customers at the end of FY 2011-12. Total customers as approved
by Commission for 2012-13 stands at 859. JUSCO serves a total consumption of
around 302 MUs (as approved by Commission in 2012-13) and this has increased
substantially from 212 MUs in 2010-11. Emphasis has been laid by the licensee to
increase LT consumers by targeting domestic, non-domestic and rural customers
recently.
19. Tata Steel Limited: Tata Steel Limited is a licensee for Jamshedpur town and it
manages the distribution function through JUSCO as a distribution franchisee in the
area. The energy sales of TSL was approximately 1900 MUs in 2010-11 and was
estimated to be around 2200 MUs in 2011-12. The approved energy sales for
2012-13 stand at 3017 MUs. The company enjoys low T&D loss ranging between 7-8
%. The total number of consumers stands at around 46036 with a total connected
load of 722000 units(kWh and kVA combined). TSL purchases power from Tata
Power, DVC and captive plant of TSW (Tata Steel Works) for meeting is energy
requirement. As per T.O 2012-13 Tata Steel recovers at least 80% of the average cost
of supply from all consumer categories. As such the amount of cross subsidy is lower.
Damodar Valley Corporation: DVC supplies bulk power at 33 KV, 132 KV and
220KV through a network covering more than 5500 circuit kilometers. The 7 districts
that it supplies electricity includes Dhanbad, Bokaro, Giridih, Hazaribagh, Kodarma,
Ramgarh & Chatara.
20. Steel Authority of India Limited, Bokaro: SAIL, Bokaro acts as a distribution licensee
in the Bokaro Steel City. The energy requirement is met through power purchase
from BPSCL (Bokaro Power Supply Corporation Ltd) and DVC. It serves around 50000
consumers with approximate energy sales of 184 MUs. The company suffers from
high distribution losses of around 30%.
23. Performance of state owned utilities
GENERATION
Patratu thermal station (PTPS) of JSEB currently runs at suboptimal levels as only 2
out of 10 units are operational. Also Sikidiri hydel power plant owned by JSEB is
currently facing generation difficulties owing to low water levels of Sikidiri reservoir
and heavy siltation. The proposed generation capacity of JSEB as per T.O 2012-13,
the gross generation of PTPS (Patratu Thermal Power Station) is expected to be 722
MUs and that for Sikidiri Hydel Plant (SHPS) is expected to be 159 MUs. Plant load
factor as estimated by JSEB for PTPS is estimated as 34.34%. The auxiliary
consumption is estimated to be 14.25% for PTPS and 3.84% for SHPS. Station heat
rate of PTPS is proposed to be 4231 kCal/kWh for 2012-13.
Gross generation from TVNL as proposed in T.O 2012-13 is estimated at 2759 MUs
based on a PLF of 75%. TVNL has achieved PLF of 59% during 2007-08 to 2011-12 on
an average. Approved power purchase of JSEB is 2344.76 MUs from TVNL and is
depicted below. Station heat rate as proposed for 2012-13 stands at 2980 kCal/kWh
against 3031 kCal/kWh actually achieved in 2011-12. Auxiliary consumption is
proposed to be 10%. Actual auxiliary consumption in 2011-12 was 9.71%.
24.
25.
26.
27.
28. T & D LOSSES
T&D losses as proposed by JSEB for 2012-13 stand at 29.25%. However the losses
have shown a declining trend over the years from 41.99% in 2007-08 to 30.89% in
2011-12. Still the figure remains way below the national level T&D losses which have
ranged between 22 – 27% during 2007-08 to 2011-12 according to Planning
Commission report on working of state power utilities.
29. As can be seen from the above chart, even though there was
not much difference in the Commission’s target and the actual
losses during FY 2003-04, JSEB could not bring down the T&D
losses substantially over the years.
T&D losses for other utilities within the state have been
considerably low. TSL has achieved a T&D loss of 7.79% in
2010-11. JUSCO similarly proposed a T&D loss of 2.61% for
2012-13 T.O.
30.
31.
32. The supply from NTPC, DVC and Tata Power are substantially
higher. Since a big portion of the total power purchase of JSEB
is sourced from DVC and NTPC, the impact on the overall
power purchase cost is huge.
This higher cost translates to higher cost of supply for the
utility. If we compare the power purchase cost of TSL
and JUSCO as approved in T.O 2012-13 it can be noted that the
difference is substantial.
Figure 11 & 12 depicts the power purchase cost of Tata Power
andJUSCO as approved in T.O 2012-13.