Life might be a bit different by mid-century.
We're checking in on Secretary Rick Perry's success with the department he once forgot about.
The tax bill unlocks land in Alaska that holds some of the largest untapped oil reserves in the U.S., but they might not get extracted immediately.
The Australian Energy Market Operator says if nothing is done, Australia is headed toward a major gas supply shortage in 2018.
LED and CFL lights last a long time, and they're cheap. But they're still not slowing the demand for artificial lighting.
Scientists want to use excrement from poultry as solid biomass fuel for heat and electricity.
Republicans wanted to drill in an-oil rich area of an Alaskan refuge for decades, and the political stars are perfectly aligned for that to happen.
Daylight saving time has been around about 100 years, but many studies suggest a time switch doesn't save energy, as previously believed.
Starting this year, Denver is offering help to families who struggle to make ends meet.
The Trump administration wants to make the U.S. more coal-friendly, but many plants that once created power from coal have already left the industry.
Research suggests harnessing ocean wind could power the entire globe - but it comes with some major obstacles.
Now is the time to start preparing your home for winter and Denver7 is looking at things you can do at your apartment or house to save…