The world's first Active House stands at the crest of an estate. Its south-facing roof is covered in solar panels and solar cells, which between them harness more than enough power to keep the occupants warm and the appliances running. In around 30 years' time, if designers have got their sums right, the excess electricity flowing from the house into Denmark's grid will have cancelled out the energy costs of building it, leaving a non-existent footprint on the earth's resources.
Striking another blow to the oil and gas industries, an American solar company has developed technology that can produce super-efficient solar power that’s cheaper than fossil fuels. Rayton Solar’s new solar panel manufacturing technology uses 50 to 100 times less silicon than other technologies, cutting out large amounts of the most costly component of solar panels