The US has required motor fuels to contain 10% biofuels since 2005. As this program nears a key milestone in 2022, farm advocates want to expand it while critics want to pare it back or repeal it.

Researchers make the case for a semisolid electrochemical compound as a cost-efficient, grid-scale battery backup for wind and solar power.

Two new papers offer evidence that linking the two giant power grids in the US would offer benefits.

People in some areas are paying hundreds of pounds more to heat their homes every year.

New analysis could help identify optimal materials for the crisscrossing struts that bolster bridges, towers, and buildings.

Morocco treats wind and solar farms in Western Sahara as if they were in Morocco.

Many vulnerable people are unable to engage with their energy usage online, leading to higher bills and even debt and illness.

Researchers have boosted the efficiency of solar cells made from semiconducting perovskites while retaining their ability to stand up to the environment.

Researchers have visualised, for the first time, why perovskites – materials which could replace silicon in next-generation solar cells - are seemingly so

A set of studies found people prefer incentives to disincentives, especially for individuals but also for businesses. They have views on clean energy and efficiency, too.