Casey Crownhart

Huge grid-scale batteries are thriving, but smaller residential systems have lagged.

Huge grid-scale batteries are thriving, but smaller residential systems have lagged.

Startup Switch Bioworks hopes to use microbes to reduce demand for chemical fertilizer.

A small, no frills EV could be the right vehicle for this moment.

The next big thing in hydrogen could be underground

El Niño? Climate change? All of the above?

Geothermal startup Zanskar took over and revived the New Mexico power plant

Companies are developing new enrichment technology that could unlock previously overlooked resources.

North America’s longest underground power line could cut emissions and costs once it’s fully operational.

A key tax credit in the US ended, but heat pump sales are still going strong.