The Take

Cutting commentary from those who know the most.


The clean energy transition is unstoppable, so why fight it?

The transition from fossil fuels to solar, distributed generation resources and renewables won't be easy, but energy analyst Chris Nelder chooses to stoke the flames of hope.


Virtual fresh air: Air conditioning evolves to combat climate change

New (and not so new ideas) for ventilating and cooling buildings promise to use less energy while taking advantage of nature.


'Watts' the mystery? The energy units that power our lives

Analyst Chris Nelder explains common energy measurement terms and how to compare or convert them, including ever-befuddling capacity factors.