January 16, 2020 by Mahdokht Shaibani, via Energy Post The rapid expansion of electric power across the world is putting a strain on battery production. The standard lithium-ion battery depends on minerals and metals in limited supply, so alternatives are needed urgently. Mahdokht Shaibani at Monash University describes the work of her team on developing lithium-sulphur batteries. There are many advantages, not least the abundance of sulphur, the 16th most common element on Earth. Added to that, theory suggests they

January 7, 2020 by NREL, via Energy Post Solar cells commonly used in spacecraft are highly efficient but too expensive to be used commercially down here on Earth. Two methods, HVPE (hydride vapour phase epitaxy) and the preferred MOVPE (metalorganic chemical vapour phase epitaxy), have been used to make these super-cells, reaching efficiencies of 29.1%. The National Renewable Energy Laboratory (NREL) says its scientists have discovered a method, D-HVPE, that should achieve those efficiencies much more cheaply.

December 13, 2019 by NREL, via Energy Post A great deal of the cost reductions in wind energy have come, pure and simply, from bigger turbines. Their rotors have a greater swept area and access higher wind speeds at elevated heights. But there are practical limits to the size these blades can reach. Challenges include weight, fatigue, manufacturing, reliability, transport and logistics. To push the boundaries of design, teams from the U.S. Department of Energy’s National Renewable Energy Laboratory and San

January 31, 2020 by Meredith Fowlie, via Energy Post The issue of carbon taxes is under debate in the U.S. Congress. The fear is a new tax will destroy jobs and hinder growth. Will it? Meredith Fowlie at the Energy Institute at Haas says the U.S. should see Europe as a very useful carbon tax laboratory experiment: half the countries have some sort of tax, the other half don’t. She’s pulled together evidence to answer the simple question: does a carbon tax affect aggregate employment and growth.