JBIC Ex-post Monitoring Report
Project Name: India “Basin Bridge Gas Turbine Project”[Outline of Loan Agreement]
Loan Amount/Loan Disbursed AmountSigning of Loan Agreement
Final Disbursement Date
Ex-post evaluation
Executing Agency: 11,450 million yen/10,779 million yen: March 1990
: March 1998
: 1999: Tamil Nadu State Electricity Board[Project Objective]
This project was to construct a gas-fire power plant and install gas turbine generators (30MWx4) in Chennai in order to meet the peak-time power demand in the morning and evening (including for irrigation pumps) and thereby contribute to the promotion ofindustries (including agriculture) through a stable power supply.
[Outline of Results] (Field Survey : January 2005)
Item
Ex-post Evaluation
Ex-post Monitoring[Efficiency and Impact](1) Power supply under the (1) The installed turbines are operated only during the peak demand hours as planned. (1) Affected by the unexpected steep rise in the price of naphtha (fuel of this power plant), the annual power generation under this project
started to decrease in 2003.
project (to meet theThe total power generation in 1999 was 165GWh1 and the power plant has been
peak-time demand)
operated almost as planned. The planned annual power generation is 173GWh(assuming they are operated 6 hours a day, 240 days a year).
<Changes in Annual Power Generation and the Price of Naphtha>
Evaluation Item

Unit

1998

1999

2000

2001

2002

2003

2004

Output Capacity

MW

120

120

120

120

120

120

120

Annual Power Generation

GWh/year

77

165

186

171

312

80

44(Reference)(JPY/kilo litter)

14,41914,15020,612

21,124

20,15523,24928,808

Price of Imported Naphtha(2) Interruption of the (2) Construction of this power plant realized a stable power supply even during peak (2)①This power plant with its operation characteristics (reaching the maximum output in 15 minutes after the start of operation) ishours and eliminated interruption of the power supply in the morning and evening.
indispensable for the power supply in the state during peak hours and in the event of emergency demand.
power supply during②The output capacity of this power plant (120MW) is almost equivalent to 1.7% of the peak-time power demand in the morning andpeak time hours in theevening in Tamil Nadu State, which is 7,253MW. Although the power supply under this project is decreasing as mentioned in (1)morning and evening
above, a stable power supply in the state is ensured even during peak hours by using an additional power supply from other states via
the grid.
(3) Promotion of industries (3) The operation rate of irrigation pumps has increased as a result of a stable power (2) The electricity from this power plant is used for running of irrigation pumps in the morning and in the evening. It is difficult to(including agriculture)supply.
measure the direct contribution of this project to agricultural production since other factors are involved, however, as shown in thethrough a stable power
table below, the agricultural production in the state has been stabilized.
supply during peakdemand hours<For information: Changes in Grain Production in Tamil Nadu State>[Sustainability](1) Technical Capacity /O&M System/FinancialStatus(2) O&M Status

1Year

1996

1997

1998

1999

2000

2001

Grain Production (tons)

6,930

8,104

9,413

8,969

8,903

8,472

(1) There is no problem. A sufficient number of skilled technical workers are assigned (1)①Technical Capacity: The executing agency, TNEB (Tamil Nadu Electricity Bureau), has a sufficient number of employees and skilled
to operation and maintenance (approximately 80 persons as of 1999, the total
technical workers (respectively about 130 persons and 70 persons as of 2004), and performs overhauls on a regular basis.
②O&M System: TNEB is under the jurisdiction of the Tamil Nadu State Government. The organization and operational structure havenumber of employees is unknown).
not changed since the time of ex-post evaluation.
③Financial Status: The budget for the operation and maintenance of the power plant has been gradually increasing. The annual budget
allocated to the power plant is adequate to maintain the operation of the plant. However, TNEB as a whole reported a net loss of 10.3
billion Rp for the fiscal year of 2003-04.
(2) There is no problem with the operation and maintenance status. Spare parts (for 5 (2) There is no problem with the operation and maintenance status (spare parts are always in store).
years operation) are always in stock.

The ex-post evaluation of this project reports the total power generated in 1999 was 155.1 GWh.

However, TNEB pointed out at the time of research for this monitoring that actual figure was 165GWh.

[Lessons Learned,Recommendations, DataInformation andMonitoring Method](1) Follow-up of the (1) Nonelessons
learnedand
recommendations made in
the ex-post evaluation and
SAPS conducted after the
ex-post evaluation(2) Lessons learned in theex-post monitoring andrecommendations
for
maintaining
sustainability(2) The cost of operating a power plant fueled by naphtha is larger than the average of other plants. If the fuel is changed from naphtha tonatural gas, the operating cost would be reduced to less than 60% of the current cost. The Indian Government has a plan to construct gas
pipelines between domestic gas fields and each region. If a gas supply is made available in Chennai or liquefied natural gas storage
facilities are constructed in Ennore (in the suburbs of Chennai) in the future, it would be possible to convert the fuel of this power plant tonatural gas and run it under combined cycle, operating it as a base-load station.