Converting solar energy beamed from space into electricity in a power grid, however, has not yet been demonstrated.

可是，能否把从太空上发射来的太阳能转变成可以进入输电网中的电能，则还没有实例。

youdao

That could happen about five years from now, perhaps using a laser on the International Space Station to transmit solar power collected by its panels to Earth.

从现在算起，实验可能会在未来的五年内进行，可能采用的方法是利用国际空间站的激光将太阳板收集到的太阳能传送到地球。

youdao

Such solar power is already being used to run all sorts of devices, from calculator to the Hubble Telescope in outer space.

这类太阳能已应用在诸如计算机和哈伯太空望远镜等各种装置中。

youdao

Technologically, spin-offs from the space program have revolutionized fields from medicine to energy generation (solar panels were made to power satellites) to breakfast drinks.

FORBES: Man in Space! 50 Years Later

Orbital debris could block all these benefits for centuries and prevent us from developing clean energy sources like space solar power satellites, exploring our Solar System and someday making humanity a multi-planetary civilization capable of surviving true climatic catastrophes.

FORBES: Beware Of Space Junk

Given the risks of aiming such a powerful beam of high-intensity radiation at an Earth ground station, as well as the cost of building billions of dollars in infrastructure to collect the energy in space, the efficiencies you can get from terrestrial solar power seem a safer bet--at least for now.

FORBES: Galactic Gold Mine?