Oil is on course for its biggest weekly gain in six years, while commodities surge after Glencore announces production cuts.

Is it O.K. for Tesla to try to make money?

Following SolarCity’s plan to build a factory in Buffalo, New York, another solar company has been attracted to the area with incentives.

Period of heavy oversupply in the global crude market may be coming to an end.

We might have cheap gas for a while yet.

When it comes to electricity, it’s all about the cost. A new report shows how clean energy electricity is becoming mainstream.

The 2010 oil spill damaged 1,300 miles of coastline

The clean energy giant has grown so, well, giant, that it now must make some crucial cuts to come back down to earth.