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Press Release 2008

Shin-Nagoya Thermal Power Station Group No. 8 Beginning Commercial Operation

April 1, 2008

Chubu Electric Power Co., Inc.

Construction work has been ongoing at Shin-Nagoya Thermal Power Station Group No. 8 (Units 8-1 to 8-4) since July 2005. Today, the first generation unit, Unit 8-4, began commercial operation.

This plant is a combined cycle*1 power generation facility of the most advanced type that uses liquefied natural gas (LNG) for fuel. It achieves the highest level of thermal efficiency in the world, at approximately 58%*2.

Bringing this plant into commercial operation furthers our aim to raise the overall thermal efficiency of the Chubu Electric thermal power generation facilities. Together with Units 8-1 through 8-3, which are presently under construction, this generation facility is expected to reduce annual CO2 emissions by approximately 1 million tons.

With the entry of this plant into commercial operation, the total capacity of Chubu Electric's power generation facilities has grown to 32,871,040 kW.

Construction will continue on Units 8-1 through 8-3. These units are scheduled to gradually be phased into commercial operation by October 2008.

Chubu Electric is committed to delivering a stable supply of economical electric power from now into the future. To that end, we intend to continue with the development of power sources for an optimum power source composition that balances thermal, hydroelectric, and nuclear power.

*1  A method of generating electricity that uses both the energy from burning gas as fuel, to turn gas turbines, and the waste heat from that burning gas, to generate steam, to operate steam turbines. Chubu Electric also uses this method at Yokkaichi Thermal Power Station Group No. 4, Kawagoe Thermal Power Station Groups No. 3 and 4, and Shin-Nagoya Thermal Power Station Group No. 7.

*2  Thermal efficiency based on lower heating value standard (approx. 52% based on higher heating value standard)

1. Overview of Shin-Nagoya Thermal Power Station

(1) Location

34 Shiomi-cho, Minato-ku, Nagoya City

(2) General Manager

Hikaru Sakaguchi

(3) Output

Power Generation Facility Name

Output

Group No. 7 (Units 7-1 to 7-6)

1.458 million kW (243,000 kW × 6 units)

Group No. 8 (Units 8-1 to 8-4)

1.5344 million kW (383,600 kW* × 4 units)

(Units 1 to 6 have already been discontinued)
*  Share of output with all group units in operation; rated output (air temperature 5°C) 400,000 kW.

(4) Fuel

LNG

 2. Features

(1) Highest level of thermal efficiency in the world

This system operates by the three-pressure reheat, single-shaft combined-cycle power generation method* using the most advanced 1,500°C-class gas turbine to achieve the world's highest level of thermal efficiency (approx. 58% based on lower heating value standard).

This enables us to use limited energy resources effectively while at the same time reducing CO2 emissions.

* This is the first application in the world using 60-Hz equipment (3,600 rpm).

Thermal efficiency of power generation facilities and total thermal efficiency(lower heating value standard) 
Thermal efficiency of power generation facilities and total thermal efficiency(lower heating value standard)

 (2) Power Generation Facility with Low Environmental Burden

The fuel is LNG, which is clean and does not generate soot. The facility uses high-performance denitrification equipment and combustors that limit the generation of nitrogen oxides (NOx). This keeps the concentration of NOx emissions to 2.5 ppm or lower, which is half the previous level (5 ppm or lower at Shin-Nagoya Thermal Power Group No. 7).

The power plant achieves the highest thermal efficiency level worldwide to reduce CO2 emissions and lower the environmental burden.

(3) Consideration for Scenic Views

Like existing Group No. 7, the turbine building has blue exterior walls decorated with a motif depicting the score of "Symphony No. 40 in G Minor, K. 550," composed by Mozart. The stack has a simple, modern design patterned after a high-rise building.

(4) Highly Advanced Automation

The power generation facility has control and monitoring functions that allow operation of everything from start-up to shut-down to be handled by a small number of personnel from a central control room.

3. Chubu Electric Power Generation Facility Capacity and Component Percentages

 

Shin-Nagoya Thermal Unit 8-4Before Starting Commercial Operation

Shin-Nagoya Thermal Unit 8-4After Starting Commercial Operation

Power Generation Facility Capacity
(kW)

Component Percentage

Power Generation Facility Capacity
(kW)

Component Percentage

Thermal

Coal

4,100,000

12.6

4,100,000

12.5

LNG

13,179,000

40.6

13,579,000

41.3

Oil

5,090,400

15.7

5,090,400

15.5

Subtotal

22,369,400

68.9

22,769,400

69.3

Nuclear

4,884,000

15.0

4,884,000

14.9

Hydro

5,217,640

16.1

5,217,640

15.9

Total

32,471,040

100

32,871,040

100

4. Construction History

July 1994

Included in Japan's electric power development master plan at the 127th session of the Electric Power Development Coordination Council (Shin-Nagoya Thermal Power Station Group Nos. 7 and 8 (1.458 million kW × 2))

* Commercial operation starting date for Group No. 8 later changed twice (construction postponed)

December 1998

Group No. 7 starts operation

March 2005

Notification of Group No. 8 construction schedule change for FY2005 power supply plan (construction resumes)

July 2005

Group No. 8 construction starts

April 2008

Unit 8-4 starts commercial operation

June 2008

Unit 8-3 scheduled to start commercial operation

July 2008

Unit 8-2 scheduled to start commercial operation

October 2008

Unit 8-2 scheduled to start commercial operation (Renovation complete, full commercial operation slated to begin)