Press Release

Press Release

Start of construction of the Toyama River Hydroelectric Power Station in Iida City, Nagano Prefecture

September 04, 2023
Chubu Electric Power Co.,Inc.

Chubu Electric Power has today started construction of the Toyama River Hydroelectric Power Station ("the Power Station") in Iida City, Nagano Prefecture.

The Power Station is a run-of-the-river (Note) hydroelectric power station and is expected to generate approximately 61 million kWh of electricity annually.
The start of operation has not yet been determined due to partial damage to the access road caused by the torrential rains in June 2023, but we will aim to complete construction as soon as possible in light of the progress of the road restoration.
(Note) A method that uses flowing water of river directly for power generation without storing it in a dam.

Continuing to embrace an eco-conscious mindset, we will proceed to construct the facility while affording the highest priority to safety and with the understanding and cooperation of local residents as well as other relevant parties.

The Chubu Electric Power Group has positioned renewable energy as one of its main power sources that will contribute to achieving a carbon-free society as well as enhancing energy self-sufficiency, and we will continue active development in order to achieve our goal of "an expansion over 3.2 million kW through ownership, construction, and maintenance of renewable energy plants by around 2030".

[Overview of Toyama River Hydroelectric Power Station]

Location of the Station

Minamishinano and Kamimura districts in Iida City, Nagano Prefecture

River system/river name

Tenryu River System, Toyama River

Power output

11,400kW

Estimated annual power output

Approximately 61 million kWh(equivalent to power for approximately 20,000 ordinary households)

Power generation system

Run-of-the-river type (conduit type)

Maximum water consumption

10.0m3/s

Effective head

Approx. 127m

Scheduled start of commercial operation

To be determined

[Illustration of the weir installation]

Illustration of the weir installation

(View upstream from downstream)

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