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1． Materials and Equipment for Hydroelectric Power Stations
Item name/Product name (Specification etc.)

Quotation Delivery
Date
Date
Year/Mon. Year/Mon.

Branch/Station

Qty

Unit

Repair of penstock upper drainage pipe

Hongawa Power Station

1Unit

2024/042024/12Development of dam information coordination system

Kochi Branch, etc.

1

Unit

2024/042025/031

Unit

2024/042025/031

Unit

2024/042025/031

Unit

2024/042025/03

Replacement of intake regulating gate winch, etc.
Replacement of maintenance discharge valve control
panel
Replacement of automatic controller

Iokigawa Power Station (Iokigawadam)
Hongawa Power Station (Inamuradam)
Nanokawa Power Station(Kitagawa intake dam)

Patrol drone

Matsuogawa No.1 Power Station

1Unit

2024/042025/02

Pressure oil device

Nagasawa Power Station

1Unit

2024/042025/02

Switch box

Bunsui No.4 Power Station

4Box

2024/042025/12

Replacement of AC uninterruptible power supply

Tsuga Power Station (Tsuga dam)

1

Unit

2024/042025/03

Inspection and repair in autumn

Hongawa Power Station

1Unit

2024/052024/101Unit

2024/052026/08

1Unit

2024/052025/03

1Unit

2024/052025/03

Solar panel, etc.
Replacement of reservoir/intake boom
Modification of dam maintenance discharge facilities

Matsuyama Solar Photovoltaic
Power Station
Nagasawa Power Station(Nagasawa dam)
Omorigawa Power Station(Omorigawa dam)

Water turbine generator, distribution panel, switch box,etc. set

Kiragawa Power Station

1

Unit

2024/06

2027/03

Modification of small capacity data exchange unit

Minawa Power Station (Minawadam)

1

Unit

2024/06

2025/03

Remote monitoring control device

Sakamoto Power Station

1

Unit

2024/06

2026/12

Replacement of water intake control terminal

Ikeda Hydraulic Power Center, etc.

1

Unit

2024/072025/03Replacement of dam gate opening meter

Tsuga Power Station (Tsuga dam)

1

Unit

2024/072025/03

1Unit

2024/072025/03

1Unit

2024/072025/031

Unit

2024/082027/03

Replacement of spillway gate opening meter
Replacement of turbidimeter
Replacement of access bridge

Omorigawa Power Station(Omorigawa dam)Tsuga Power Station intake(Tsuga dam)Jinzo Power Station (Ikadazudam)

Feed-water device

Kagehira Power Station

1

Unit

2024/082026/08

Five-sense sensor (Drone)

Kamo Power Station, etc.

1

Unit

2024/092025/01

Drone inspection device

Namuragawa Power Station

1

Unit

2024/092025/07

Remote monitoring control device

No. 5 Kurokawa Power Station

1Unit

2024/092026/12

Replacement of telemeter device

Yusuharagawa No.2 Power
Station (Hatsuse dam), etc.

1Unit2024/102026/03

Drone inspection device

Kiragawa Power Station

1Unit

2024/102025/03

1Unit

2024/112026/03

1Unit

2024/112026/03

1Unit

2024/112026/03

1Unit

2024/112026/03

1Unit

2024/112026/03

Hongawa Power Station

1Panel2024/112025/12

Hongawa Power Station

1Unit

2024/122027/03

1Unit

2024/122026/03

1Unit

2024/122026/03

1Unit

2024/122026/03

1Unit2024/12

2026/03

Replacement of remote monitoring control device
Replacement of remote monitoring control device
Replacement of remote monitoring control device
Replacement of remote monitoring control device
Replacement of maintenance discharge facilities unit
side control panel
Distribution panel: Main transformer oil transfer pumpcontrol panel
Overhaul materials
Replacement of monitoring control device, etc.
Replacement of sand basin scouring sluice winch
Replacement of sand basin scouring sluice winch
Replacement of upstream telemeter device

Ananaigawa Power Station(Ananaigawa dam)
Omorigawa Power Station(Omorigawa dam)Shigeto dam
Shingai Power Station (Yasubadam)
Omorigawa Power Station(Omorigawa dam)Matsuogawa No.1 Power Station(Matsuogawa dam)
Nagoro Power Station (Nagorodam)
Hirono Power Station (Omidanidam)
Ohashi Power Station (OhashiDam), etc.

Delivery
Condition
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Delivered &adjusted
Delivered &adjusted
Free on truck
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Delivered &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Delivered &adjusted
Delivered &adjusted
Delivered &adjusted
Delivered &adjusted
Installed &adjusted
Delivered &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Delivered &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted

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Item name/Product name (Specification etc.)
Replacement of remote controller
Replacement of scouring sluice, etc. winch
Replacement of telemeter device

Branch/Station
Ohashi Power Station (Kazuraharaintake dam)Higashitoyonaga Power Station(Tanimatagawa sand basin)
Hongawa Power Station (Inamuradam), etc.

Qty

Quotation Delivery
Unit
Date
Date
Year/Mon. Year/Mon.

1

Unit

2024/122026/031

Unit

2024/122026/031

Unit

2024/122026/03

Replacement of south water tank regulating gate winch

Higashitoyonaga Power Station

1

Unit

2024/122026/03

Replacement of south water tank scouring sluice winch

Higashitoyonaga Power Station

1Unit

2024/122026/03

Replacement of east water tank regulating gate winch

Higashitoyonaga Power Station

1

Unit

2024/122026/03

Remote monitoring control device

No.5 Kurokawa Power Station

1

Unit

2024/122027/02

Replacement of control panel on intake regulatinggate/scouring sluice device side

Yusuharagawa No.3 Power
Station (Yusuharagawa No.3 dam)

1

Unit

2024/122026/03

Replacement of control panel on intake regulating gatedevice side

Saga Power Station (Saga intakeweir)

1

Unit

2024/122026/03

Modification of regulator control panel

Sakamoto Power Station

1

Unit

2024/122026/12

Replacement of spillway gate

Saga Power Station (Saga dam)

1

Unit

2025/01

2027/03

Hirono Power Station
Replacement of water intake facility automatic controller (Kominono Dam Control Office),
etc.

1

Unit

2025/01

2026/03

Replacement of water tank dust collector

Doigawa Power Station

1

Unit

2025/01

2026/03

Development of dam/water intake information
coordination system (Operation system reconstruction)

Ehime Branch, etc.

1

Unit

2025/01

2026/03

Replacement of monitoring control device server

Within Kochi Branch

1

Unit

2025/01

2026/03

Replacement of monitoring control device server

Within Kochi Branch

1

Unit

2025/01

2026/03

Development of dam/water intake information
coordination system (Operation system reconstruction)

Ehime Branch, etc.

1Unit2025/01

2026/03

1Unit

2025/01

2026/03

1Unit

2025/01

2026/03

1Unit

2025/01

2026/03

1Unit

2025/01

2026/03

1Unit

2025/01

2026/03

1Unit

2025/012025/06

1Unit

2025/01

2026/03

1Unit

2025/022026/03

1Unit

2025/022026/03

1Unit

2025/022026/03

1Unit

2025/022026/03

Replacement of dam control office protector panel, etc.
Replacement of spillway gate standby generator
Replacement of water tank scouring sluice winch
Replacement of intake scouring sluice winch
Replacement of monitoring control device server
Replacement of air conditioners for dam control officecontrol room, etc.
Replacement of monitoring camera device
Replacement of automatic dust collector
Replacement of water tank dust collector
Replacement of sand basin dust collector
Replacement of monitoring control device server

Ohashi Power Station (OhashiDam)
Ohashi Power Station (OhashiDam)
Nibukawa Power Station
Komura Power Station (Komuraintake dam)Yusuharagawa No.2 PowerStation (Hatsuse dam)
Kagehira Power Station(Kominono Dam Control Office)Bunsui No.1 Power Station(Omorigawa intake dam)Yusuharagawa No.3 PowerStation (Yusuharagawa No.3 dam)Otaguchi Power Station
Nanokawa Power Station(Nakatsu intake dam)Yusuharagawa No.2 PowerStation (Hatsuse dam)

Replacement of downstream warning device

Tsuga Power Station, etc.

1

Unit

2025/022026/03

Repair of part for monitoring control device, etc.

Dams within Kochi Branch

1

Unit

2025/022026/03

Development of monitoring base system

Kochi Branch, etc.

1

Unit

2025/032026/03

Replacement of water system indicator panel

Kubokawa Hydraulic PowerCenter

1

Unit

2025/032026/03

Replacement of standby generator

Matsuogawa No.1 Power Station (Iyagawa intake dam)

1

Unit

2025/032026/03

Generator control panel

No.5 Kurokawa Power Station

5Panel2025/042026/12

Replacement of dam turbidimeter

Nagasawa Power Station(Nagasawa dam)

1

Unit

2025/042026/03

Replacement of AC uninterruptible power supply

Hongawa Hydraulic Power Center

1

Unit

2025/042026/03

Delivery
Condition
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Delivered &adjusted
Installed &adjusted
Installed &adjusted
Delivered &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted(Reference) For FY2025
Delivered &adjusted
Installed &adjusted
Installed &adjusted

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Branch/Station

Qty

Quotation Delivery
Unit
Date
Date
Year/Mon. Year/Mon.

Installation of dam control forecasting system

Hongawa Hydraulic Power Center

1

Unit

2025/042026/03

Replacement of runner vane

Oodo Power Station

1Unit

2025/052027/07

Switch box, feed-water device

Hongawa Power Station

1

Unit

2025/052026/08

Monitoring base integration_relocation work of sandbasin scouring sluice winch, etc.

Hongawa Hydraulic Power Center,etc.
Kirikoshi Power Station(Kawamata intake dam)
Kirikoshi Power Station(Kawamata intake dam)

1

Unit

2025/052026/031

Unit

2025/06

2026/03

1Unit

2025/06

2026/031

Unit

2025/06

2026/031

Unit

2025/06

2026/031

Unit

2025/06

2026/03

1Unit

2025/082028/03

1Unit

2025/092026/03

1Unit

2025/092026/03

1Unit

2025/092026/03

1Unit

2025/092026/03

1Unit

2025/092026/03

Item name/Product name (Specification etc.)

Replacement of scouring sluice
Replacement of intake regulating gate winch
Replacement of scouring sluice control panel, etc.

Iyagawa main stream intake dam

Replacement of remote control panel and distribution
board

Kirikoshi Power Station(Kawamata intake dam)
Takano Power Station (Iyagawa
Wakabayashi intake dam)Jinzo Power Station (Ikadazudam)

Replacement of sand basin scouring sluice winch
Replacement of access bridge
Replacement of iron pipe valve chamber DC power
supplyReplacement work of cyclic digital informationtransmission unit, etc.
Replacement of small capacity data exchange unit

Hirono Power Station
Kagehira Power Station (Shirakyu
stream-flow gauging station), etc.
Iya Power Station (Wakabayashi
intake dam)

Replacement of high-voltage power receiving equipment
Hirono Power Station
at Izumi pumping facility
Remote control of Ichiu-Deai link channel regulating gate
Ichiu-Deai link channeland drainage gate
Remote monitoring control deviceDoigawa Power Station

1Unit

2025/092027/05

Remote monitoring control device

Tenjin Power Station

1Unit

2025/092027/12

Remote control of intake regulating gate

Ikeda Power Station

1Unit

2025/092026/03

Generator current transformer, generator air cooler, oillift pump, etc.

Hongawa Power Station

1

Unit

2025/102028/03

Overhaul materials

Hongawa Power Station

1

Unit

2025/122028/03

Replacement work of cyclic digital informationtransmission unit for water level indicator

Hongawa Power Station

1

Panel

2025/122027/10

Inlet valve, bypass valve

Iokigawa Power Station

1Unit

2026/01

2027/05

1Unit2026/01

2027/031

Unit

2026/01

2027/031

Unit

2026/01

2027/03

Replacement of intake regulating gate winch
Replacement of scouring sluice winch
Replacement of intake regulating gate winch

Iokigawa Power Station (Iokigawadam)
Ohashi Power Station(Kazuraharagawa intake dam)
Ohashi Power Station(Kazuraharagawa intake dam)

Replacement of dam monitoring control device server

Within Kochi Branch

1

Unit

2026/01

2027/03

Replacement of dam control information gathering
deviceHongawa Power Station (Inamuradam)

1

Unit

2026/01

2027/03

Replacement of main transformer

Oodo Power Station

1Piece2026/02

2027/12

Delivery
Condition
Installed &adjusted
Delivered &adjusted
Delivered &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Delivered &adjusted
Delivered &adjusted
Installed &adjusted
Delivered &adjusted
Installed &adjusted
Delivered &adjusted
Delivered &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Installed &adjusted
Delivered &adjusted