Successful experiments to send electricity in radio waves.

Mitsubishi Heavy Industries, the 12th, up to 500 meters, has announced that it has succeeded in the experiment to send electricity in radio waves without using a cable.
In 36,000 km-meters away space from the ground by performing a solar power generation to transmission to the ground, an essential technology to the realization of the "Space Solar Power", this distance is called the longest in the country. The company first within a few years, the power transmission to such laying of power transmission cable is in the difficult mountainous area equipment, that want to commercialize this technology.
Experiments were performed on February 24 the company Kobe Shipyard & Machinery Works (Kobe). Power 10 kilowatts is converted into radio waves called microwave sent from the antenna 500 meters, received in panel-like device. Was lighted light emitting diode is converted back into electrical power.
for space solar power generation is not left and right, such as the weather, features power generation efficiency of 10 times higher than the ground. And is even said to be realized in 2030-40's.
I Will do the conversion efficiency to power is a how much from the microwave. First of all, I want you to opening the way of application two practical use in mountainous areas.




三菱重工業は１２日、５００メートル先まで、ケーブルを使わずに電波で電気を送る実験に成功したと発表した。
　地上から３万６０００キロ・メートル離れた宇宙空間で太陽光発電を行って地上へ送電する、「宇宙太陽光発電」の実現に不可欠な技術で、今回の距離は国内では最長という。同社はまずは数年以内に、送電ケーブルの敷設が難しい山間部にある設備などへの送電に、この技術を実用化したいという。
　実験は２月２４日に同社神戸造船所（神戸市）で行われた。１０キロ・ワットの電力をマイクロ波と呼ばれる電波に変換して、アンテナから５００メートル先に送り、パネル状の装置で受信。再び電力に変換して発光ダイオードを点灯させた。
　宇宙太陽光発電は天候などに左右されないため、発電効率が地上より１０倍高いのが特徴。２０３０～４０年代に実現するとも言われている。
　マイクロ波から電力への変換効率はどの程度なんでしょうかね。まずは、山間部での応用二実用化の道を拓いてほしいですね。