Boston explores sea- and river-source heat pumps for big buildings

PJM has finally greenlit a lot of new clean power. Can it get built?

More than 50 GW of solar, wind, and batteries can now connect to PJM’s grid. It could help drive down costs — if states, utilities, and hyperscalers make…

Arizona is having a grid battery growth spurt. Will that last?

So far this year, it has built more battery capacity than any state besides Texas. But political shifts could complicate the long-term growth trajectory.

Empty North Sea oil fields could store enough green hydrogen to power the country for seven years

Green hydrogen production is, in effect, a way of bottling renewable energy.

Living with drought has taught pastoralists lessons the world needs

Floating wetlands a promising way to decrease wastewater emissions: new research

The first full-scale trial of its kind, this floating wetland cut greenhouse gases by nearly a third over two years.

Solar buoyed Europe’s grid amid record-breaking heat and drought this summer