BRASILIA, Brazil (AP) — Power failed in parts of 11 Brazilian states Tuesday, affecting more than 2 million people in a blackout that lasted about 40 minutes. Officials said the power failure was ...

New analysis challenges primary energy accounting; it argues useful energy better reflects electrification efficiency and renewable progress, shaping planning choices.

Add Yahoo as a preferred source to see more of our stories on Google. The Antonio Guiteras power plant in Cuba stopped working Friday, thrusting the island into darkness. Credit: Cuban government ...