On a national scale, the United States and Canada rely on a very different makeup of sources to generate their electricity. The U.S. primarily uses natural gas, coal, and nuclear power, while Canada relies on both hydro and nuclear. That said, when zooming in on the province or state level, individual primary electricity sources can differ greatly.

A U.S. military space plane is being used to flight-validate the best ways to gather the sun's energy for power beaming from Earth orbit. In mid-March, the latest classified mission of the U.S. Space Force's X-37B robotic space plane winged past 300 days in Earth orbit.

Greenhouses and solar panels both need to be placed in areas with a lot of sunlight - so why not combine the two? Semi-transparent solar cells could potentially be built into the glass roof panels of greenhouses, capturing light at wavelengths that plants don't use anyway. Now, researchers at North...

An international team of researchers led by the University of Tokyo has discovered a new material which, when rolled into a nanotube, generates an electric current if exposed to light. If magnified and scaled up, say the scientists, the technology could be used in future high-efficiency solar devices.