House

Although tiny houses are becoming increasingly popular, many people wonder if they could ever actually live in one. Well, those folks would be particularly challenged by a new gingerbread-style house, as it’s smaller than the width of a human hair.

Braving a harsh winter with snow-covered solar panels, a net-zero energy home in Washington DC has come up trumps in a year-long study of its energy harvesting capabilities. Researchers even found enough of a surplus to power an electric car for 1,440 miles (2,317 km).

Researchers at ETH Zurich have created "sweating mats" which can be placed on roofs to help keep buildings cool.

Dow Solar is rolling out its new POWERHOUSE Solar Shingles in northern California and central Texas.