The oil and gas producer borrowed heavily, now it's deep in debt and struggling

In a war game, utilities face all sorts of challenges: saboteurs, storms, squirrels.

A look at what's going to happen to the controversial pipeline.

Some 36,000 people have lost jobs in Alberta’s energy sector this year.

Study finds some fossil fuel has to be left in the ground to avert disaster.

Gas prices are not as easy to calculate as you might think.

A number so big, it almost seems like it doesn't mean anything.

Denmark gets some 40 percent of its power from wind energy — but it's aiming for even more.

Bridgeport, Conn., is taking measures to rely more on locally made power.

Tesla's new home battery may be ahead of its time.