Study: Renewables rollout must accelerate, as peak oil demand looms. The world needs eight times more renewable power capacity than today along with a massive increase in the rate of battery manufacturing, carbon capture and storage deployment, hydrogen production.
Business Green 12th Sept 2019 read more »
Technical consultancy DNV GL has published its Energy Transition Outlook 2019. While the electric vehicle, storage and renewable energy industries are likely to see significant rises in demand, the sobering conclusion is the world will miss carbon reduction targets by a long shot. Just over a week ahead of the Fridays for Future global climate strike, which will seek to unite voices young and old, technical consultancy DNV GL has published its Energy Transition Outlook 2019. If any further motivation were needed to hit the streets in protest, the report’s sobering conclusion is that on our current path, climate change targets are going to be missed by some distance.
PV Magazine 12th Sept 2019 read more »
Scientists have created a device that harnesses the cold of space to generate electricity at night. The technique offers an alternative to solar power, which works while the sun shines, by taking advantage of “radiative cooling”. During the night a surface that faces the sky will lose energy, in the form of infrared light, and reach a cooler temperature than the surrounding air. “Some of the heat effectively escapes to some place much colder: the upper atmosphere and even outer space,” said Aaswath Raman, of the University of California, Los Angeles, a co-author of a paper published in the journal Joule. The phenomenon explains how frost forms on grass on nights when temperatures do not dip below freezing. It can also be used to generate electricity. At the heart of the new device is a thermoelectric generator. It takes advantage of a property many materials exhibit called the Seebeck effect. Roughly speaking, a difference in temperatures between, say, two ends of a wire can result in a voltage and the movement of electrons from one end to the other – an electric current. Thermoelectric devices have already been used to generate electricity from “waste heat” in power plants. Scientists have also tried to embed them in clothing and watches to harness temperature differences resulting from body heat.
Times 13th Sept 2019 read more »