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Solar Pump System with Direct Current Drive Pump

Small Scale Water Supply Facility through Solar Pump System with Direct Current Drive Pump


Our solar pump directly utilizes Direct Current (DC) power generated by the solar panel without any intermediate conversion into Alternating Current (AC). The pump offers a built-in automatic control function and protection device, and has unparalleled features due to (i) low cost, (ii) high durability, and (iii) simplicity of construction work, due to the direct utilization of DC power. Our technology can be used in rural area with low costs.

Major Features

I. Low Cost
Utilization of DC pump makes the expensive inverter unnecessary

II. High Durability
Simple structure without generators nor inverters, which are easy to break down

III. Simplicity of Construction Work
Product design is simple enough to install

Technology Data

Possible Applications
The technology is useful for pumping water from wells in un-electrified areas, and also reducing works for fetching and transportation of water for daily lives.

< Examples >

Settlement Site in Senegal; “KININE”

Settlement Site in Senegal; “RONE DEUK”

Competitive Advantage
Our technology has mainly the following competitive advantages due to its simple structure of pump and whole system;

1.Low Construction Cost
2.Capability to Operate Immediately after Piping and Installation
3.Durability (Actually demonstrated for about 7-10 years or more in domestic use)
4.Easy Maintenance (Recoverable by only flushing the internal sand with water, to replace mechanical seal every 8,000 hour for preventing water leakage of the shaft seal part)

By the introduction of the system, the suction lift can reach up to 7m. The system has also a function to detect water shortage in the well and protect the pump.

Direct Current Solar-Powered Pumping System (DC 12/24V Pump-mounted Type (PT-80DC)

Technical maturity / Past record of introduction
Sales quantity for recent years is as follows;

・6 in 2015
・15 in 2016
・20 in 2017
・30 in 2018


Schematic illustration of the technology

ODA Project Site in Thieppe City, Senegal


Partnering for Africa’s future: exhibition on UNIDO-Japan cooperation
Experts from Indonesia, Myanmar and Vietnam visited Japan, 16-21 July 2018
ITPO Tokyo participated in Smart Engineering Tokyo 2018
Electrodialysis using ion exchange membranes
Ground Source Heat Pumps: New Geo-heat Exchanger

Company Data

Company Name
230 Moriwake, Miyuki-cho, Fukuyama-City, Hiroshima 720-0003, Japan
The Type of business
Manufacturer of pumps, blowers, water supply equipment, and environment-related equipment
7.8 million JPY (as of 16th May, 2019)
Number of employee
804 (1,500 including group companies) (as of 16th May, 2019)
14th Apr, 1950


Contact person
Mr. Shigemi MINAGOME Senior Manager
Overseas Market Development Section.
Environmental Systems Sales Dept.

※This innovation seed information is reprinted with permission from UNIDO ITPO Tokyo’s STePP website.

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