If you're about to build a new PC, you might find yourself wondering what the ratings on a power supply actually mean. Here's why they can be important.

What happens when sun don’t shine? At this solar farm, it continues feeding power into the grid in the evening peaks, with the help of a DC-coupled battery.

Even the clean energy industry admits that solar and wind energy isn’t as reliable as fossil fuel power and that New York’s green energy law to transition to renewables is a bust, accor… ...