Elon Musk has been influential as a proponent of solar power in the past decade. In several interviews, the Tesla and SpaceX CEO has often expressed his vision of a future powered solely by solar ...

A graph of the sun's total solar irradiance shows that in recent years irradiance dipped to the lowest levels recorded during the satellite era. The resulting reduction in the amount of solar energy ...

IN 1954 AT&T’s Bell Labs announced, with some fanfare, a “solar battery”—a device which would supply electricity constantly, with no need for recharging, whenever it was illuminated. At a time when ...