Paths to a 100% clean energy grid

What will it take to get to a 100% clean-energy grid? Mostly a matter of doing what is known, say 2 researchers. A study by 2 federal labs is more cautious.

Windy enough in Dust Bowl land

Southeastern Colorado has wind aplenty, almost enough to power the entire state. But that wind is like a farm without a road to market. Why that may change.

The future of energy illustrated by Basalt Vista

If Colorado is to meet its greenhouse gas goals, use of natural gas and propane will have to be vastly reduced in the building sector. An affordable housing complex with 27 units called Basalt Vista shows what this low-carbon future might look like.