Currently scheduled to install
11 units in a row in Niigata

Signing ceremony of agreement withMayor of Tsuyama City, Okayama
Prefecture and President of JA Tsuyama

Facility inauguration ceremony with themayor of Tsuyama, Okayama Prefecture

Image of Eco Station
Style1

Cases subordinate to conventional water use

Utilize the head of an existing agricultural canal

ELIS Power Plant(Business operator: ELIS CO., LTD.)

Niimi City Okayama Prefecture, Okayama Prefecture Niimi Regional Office Jurisdiction
Power generation using the head of the iron canal installed in the agricultural canal of the Takao Building
Useless Water Association. Through the supply of electricity from natural energy, it contributes to global
warming countermeasures and raising awareness of regional mini hydropower generation.

Specification
River nameTakahashi River system Takahashi River
Effective head
Maximum water consum
ption
Maximum output
Types of water wheel Open-type Breastshot Water Wheel
Types of generator

Permanent magnet type threephase synchronous generator

Water wheel,generator

Distributed renewable energy

Mobility as a storage battery

Sustainable economic cycle model that can be relieved even in theevent of a disasterSituation before installationof power plant
Current situation after
installation of power plant
Schematic diagram

Point

Takahashi river

Subordinate power generation that generates power
within the range of agricultural water intake for whichconventional water rights have been notified.
Utilizing the head of an iron canal installed in an agricultural canal.
It is not a new water intake from a river for power generation.
Simplified documents attached at the time of application due
to subordinate power generation.
Registration with a one-year permit period based on one-year
flow rate data.
Local adjustments for power plant installation* Scheduled to be posted from Attachment 3 under request

Guidefor mini hydropower installation Ver4. scheduled to be published by the Ministry of Land, Infrastructure, Transport and Tourism
小水力発電設置のための手引きVer４.国土交通省掲載予定

Micro-hydroelectric power generation is now possible
even in low head and low water flow.
(Domestic patent has been obtained for Flow rate change correspondingstructure)※World patent pending now, WaterWeco® was acquired trademark and design

Support for Okayama Industrial Promotion
Foundation,Collaboration of Nagasaki University and WestJapan Fluid Engineering Laboratory Co., Ltd.

Output is stable evenwhen the flow ratechanges

Application range
Utilization location of agricultural waterway

Effective head

UndevelopedDevelopedMaximum water consumption
Source: Agency for Natural Resources and Energy 20th year of the Heisei period Small andMedium-sized Hydropower Development Promotion Guidance Project Basic Survey Report

NET yield
Maximum １１．２５％

Direction of water flow

Breastshot Water Wheel
Result: Takao ELIS Power Plant

Operated from March, 2016 Operating steadily even now

Dust System

Environmental
Technology Verificationproject
Ministry of theEnvironment

Sound pressure level(dB)We achieved total efficiency
over 50% by flow rate change
corresponding structure.

Reference value for mental andphysical complaints

Global warming countermeasure technology field
Small and medium-sized hydropower technology
Demonstration number No.120-1603
The performance demonstrated by athird party is published on the web.

Downstream directionof the waterway

Distance(m)センサーによる自動運転制御で大きなゴミは除去できます。小枝等は、水車を通過し下流へと流れていきます。（新開発モデルは塵芥が水車をすり抜ける構造です）

As a result of a survey by the Ministry of the Environment‘senvironmental technology demonstration project “ETV” designatedorganization, Normal noise and low frequency was also below thereference value for mental and physical complaints (measurement
height about 1.5 m, measurement time 1 minute, respectively) at 1 mpoint, 10 m point, 30 m point, 50 m point, and 100 m point in thedownstream direction of the Takao ELIS power plant in Niimi city.

Remote monitoring system

About 16%
Power generation efficiency
improved

Operation management is carried out monitoring system
which is used safety management technology of LP Gas
jointly developed by ELIS Group companies, which havebeen in business for over 60 years, and Toyo Keiki, amanufacturer of remote monitoring systems, and canminimize operating costs. In addition, a surveillancecamera can be installed, so you can check the local
situation in addition to the power generation status.
It is useful not only for reducing maintenance costs
but also for visualizing the power generation status.

WaterWeco「Open-type Breastshot Water Wheel」(Figure 3B)

Water turbine model researched and developed this time
Pitch angle
Pitch angle
Pitch angle
Pitch angle

Guide angle ofattack
Guide angle ofattackGuide angle ofattack
Guide angle ofattack

No stagnation

Output efficiency

A model of a water turbine that sells electricity
at the Takao Aqueduct in Niimi CityNiimi Water Wheel(Ministry of the Environment
ETV evaluation project)

Peripheral speed ratio
Peripheral
speed周速比Ｖｒ（０．９８）
ratio
FlowDiame＝円周率×直径（３．１５）×ＲＰＳ（７／６０）÷流速（１．２ｍ／Ｓ）
Pi
velocityter

Fluid analysis

Model experiment Productization

4 features

The impeller design is
optimized by hundredsof patterns of modelexperiments (designs
registered in eachcountry)

Proprietary remote monitoring system
Civil engineering work unnecessary
Dust control and easy maintenance
In-house original generator

Undershot Water Wheel
Kuwadani ELIS Power Plant in Tsuyama City
Operated from November 2018
The generated electricity is used as a power source for ultra-compact mobility coms.

Direction of water flow

ELIS-GENERATOR（Original generator）
Permanent magnet
type multi-polesingle monk multipole single-phasemotive multi-polesingle-phasesynchronous
E innerrotor generator

ELISGENERATOR
Phase RatedDiam
numb voltag
Item eter Height Width Weight ereUnitML-5KtypeSinglephase

Since it is suitable for low torqueand low rotation, the acceleration
ratio can be low, the corresponding
years are long, and if it is rotated
at a constant rotation speed, AC 100V
electricity can be taken out.