On a former military base in Galena, Alaska, a school that houses about 200 high school students teaches sustainability among ...

A Finnish company has launched the world's largest sand battery, delivering one megawatt of heat and 100 megawatt-hours of thermal storage.

The economics are compelling, and it’s hard to get any cheaper than the crushed soapstone now housed inside an insulated silo ...

We've collated the results in the tables below. What are the different types of boiler? Find out if a combi, heat-only or system boiler is the best type for your home.