Press Release

Press Release

Tokuyama Hydroelectric Power Station Unit 2 Starts Commercial Operation

May 15, 2014
Chubu Electric Power Co.,Inc.

This is to announce that Chubu Electric Power has begun commercial operation today of Tokuyama Hydroelectric Power Station Unit 2.

Tokuyama Hydroelectric Power Station Unit 2 is a 22,400kw output dam type power station utilizing the Tokuyama Dam (multipurpose dam managed by the Japan Water Agency) located in the furthest upstream portion of the Ibi River.

Chubu Electric Power will strive for the stable operation of Unit 2. We are grateful for the continued understanding and cooperation of local residents and related parties concerned with the construction work of Unit 1, and will move forward placing our highest priority on safety.

[Overview of Tokuyama Hydroelectric Power Station]


Higashisugihara, Ibigawa-cho, Ibi-gun, Gifu Prefecture

Water System

Kiso River System, Ibi River

Maximum output

Unit 1:131MW, Unit 2:22.4MW


 Power generation system

Unit 1:dam-and-conduit-type power

Unit 2:dam-type power

 Max. water consumption

Unit 1: 82.38m3/s, Unit 2: 18.97m3/s
(Note) However, the total max water consumption for Units 1 – 2 is 100.4m3/s

 Effective head

Unit 1: 181.96m, Unit 2: 145.71m

Start of power generation facilities work

October 26, 2009

 Start of commercial operation

Unit 1: June 2015 (Planned)

Unit 2: May 15, 2014


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