In transmission line using superconductors, experiments begin sending electricity to the home actually.

In transmission line using superconducting material which the resistance becomes zero, 29, sending electricity to the home experiment actually began in TEPCO Yokohama Asahi substation site. The electrical relay in superconducting transmission lines are sent home for the first time in Japan that.
Such as TEPCO and the New Energy and Industrial Technology Development Organization (NEDO) is about 1 years, advances in joint experiments. 240 meters of the substation, and including minute power used for cooling interval to "superconductivity" is that there is a possibility to half the power loss per unit length compared to the power lines of conventional .
Started sending electric current is approximately 50 000 households minutes. We hope that in practical use to establish the technology in 2020.
Transmission line using, for example, bismuth alloy material. To cool to about 200 degrees minus the wire, so as to surround the wire circulating liquid nitrogen. I want you to further empirical research for practical use because it seems there is a possibility that you can half loss than conventional power, including the power used for cooling. However, the enormous amount of money might be going to need to be for the first time and the cooling device will send the electrical and superconducting transmission lines to homes across the country.



電気抵抗がゼロになる超伝導物質を使った送電線で、実際に家庭に電気を送る実証実験が２９日、横浜市の東京電力旭変電所敷地で始まった。超伝導送電線で中継された電気が家庭向けに送られるのは日本で初めてという。
　実証実験は新エネルギー・産業技術総合開発機構や東京電力などが約１年かけて、共同で進める。「超伝導」になる区間は変電所内の約２４０メートルで、冷却に使う電力分を含めても、従来の送電線に比べて単位長さあたりの電力の損失を半分にできる可能性があるという。
　今回送り始めた電気は、約５万世帯分。２０２０年までに技術を確立させて実用化につなげたいという。
　送電線は素材にビスマス合金などを利用。電線を零下約２００度まで冷やすために、液体窒素を電線を取り囲むように循環させる。冷却に使う電力を含めても従来より電力損失が半分できる可能性があるようですので実用化に向けて更なる実証研究を進めて欲しいですね。しかし、全国の家庭に超電導の送電線で電気を送るとなると冷却装置を初めてして莫大な資金が必要になるのかも知れませんね。