【Industrial news publication】 Evaluation for high-efficiency power generation, cost, disaster response, etc.


ELIS, a group company of Tsubame Holdings, received the Excellence Award at the "4th Eco-Pro Award" for its small hydroelectric power generation jointly developed by Nagasaki University and West Japan Fluid Engineering Laboratory. 【Solving conventional issues】The points that received high praise are: (1) high power generation efficiency and reduction of maintenance costs (2) efficient conversion of water flow to energy even in the event of a disaster (3) power generation efficiency generated by various factors He pointed out that it is responding to the blurring and improving the power generation efficiency. As for (1), small hydropower was not widely used due to the complexity of water rights and high maintenance costs, despite the size of domestic hydropower, but the small hydropower developed by the company has high power generation efficiency. It is said that it can solve the problem of conventional small hydroelectric power generation because it is devised to reduce maintenance costs. If it spreads in undeveloped areas in the future, it is desirable from the viewpoint of energy security. As for (2), irrigation and waterways surrounding agricultural land and paddy fields have been developed in Japan, and many of these waterways are relatively unaffected by the size of the main and tributaries of rivers and flood damage, and a fixed amount of water is always secured. There are many things. In such places, this product, which can efficiently convert water flow into energy, may become more widespread. In the future, it will be necessary to increase resilience by promoting renewable energy and regional decentralization in Japan, and this product can be an effective option. In (3), in the actual field, it is said that the power generation efficiency is improved by responding to the conventional problems such as topographical deformation at the time of installation, construction period, maintenance, and fluctuation of power generation efficiency due to flow rate increase / decrease. In addition, we have exhibited at the future exhibition of environment and energy "Eco-Pro" held at Tokyo Big Sight, which is a small company that obtained the verification number of "Environmental Technology Demonstration Project (ETV Project)" from the Ministry of the Environment. Since we were developing hydroelectric power generation (installed in the irrigation canal in Niimi City, Okayama Prefecture), we decided to exhibit at the booth of the Ministry of the Environment. After that, the Okayama Prefectural Industrial Promotion Foundation called out and led to the second exhibition. This year, we made improvements and obtained a new patent. It is a mobile improvement from the conventional fixed type turbine, which enables stable power generation even if the position where the water falls changes depending on the amount of water. In addition, the blades of the water turbine have been improved so that power can be generated more efficiently. The fact that these patents have been obtained is also considered to be one of the reasons for the evaluation. Patents are also pending overseas. (Omitted) Another possibility is that "head works and torrent works in agricultural canals are often divided into water, and many of these are present in terraced rice fields. This hydroelectric energy is stable and sustainable. In rural areas. The cultivated population is declining sharply, and the costs that can be allocated to infrastructure such as irrigation canals cannot be covered by levies, but we believe that installing small hydroelectric power plants here will secure stable income. " (Omitted below)

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