Space laser to transmit solar power to Earth

Up until today, I was 100% opposed to space lasers. I mean, they sound cool and everything, but I never thought there would be a good reason to have an extra-terrestrial sniper rifle sitting there waiting for commands. That's just too much power.

But what if the space laser was giving us a different kind of power. Specifically, solar power. Well that's what some Japanese scientists are planning with a projected 2030 launch date. Solar power in space is constant and undiluted. Additionally, you don't have to buy land on which to place the panels, you just keep them orbiting and you're set.

The device works by capturing solar energy on metal alloy plates. These plates then transfer their energy to a laser, amplifying it many times. The laser is then beamed down to earth where it is captured and converted to electricity. I'm not sure how this last step is accomplished, but possibly through a traditional boiler.

The process, according the scientists, can be up to 40% efficient, which makes it comparable with the most efficient solar panels of today. The problems will arise with launch costs, weather interfering with the laser, and international outcry at the supposedly peaceful deathray.

Via Engadget