A massive project headed by Elon Musk in Memphis, Tenn., to power AI has moved at breakneck speed. But it's stirring controversy around pollution emissions. The EPA says it’s looking into it.

Earlier this year, there had been warnings that supply during peak summer hours might not meet demand. But there have been no reports yet of widespread outages.

China has more than enough capacity to generate energy. Here's why it is having to ration power, causing effects for consumers and supply chains around the world.

From potential long-term rate hikes to repairs of broken pipes, Texans could be paying for years after the state's devastating blackouts.

With lights out in many offices and millions of people plugging in at home, residential power bills are soaring, even as overall electricity consumption slumps during the recession.