Jun 28, 2016 |
When a river meets the sea, the salinity of the seawater is diffused in the mix of waters. The process releases energy, as much as if the same volume of water fell from a 250 meter high hydroelectric dam. With osmotic methods, the energy can be gathered to generate electricity. All that is needed is slightly more efficient membranes.Read More
May 17, 2016 |
Solar power is becoming more competitive. Worldwide deployment is growing rapidly. In the future, orbiting satellites might be able to collect solar power with higher efficiency and without intermittency. The power could be transmitted wirelessly to a receiver anywhere on Earth, by means of microwave or laser. The Sun is flooding us with more renewable energy than we can...Read More
Apr 26, 2016 |
Better technologies to handle and sort mixed waste streams promise to unlock previously unavailable resources. Next-generation biofuels will use waste as feedstock. Methods to gather plastic waste from the oceans, dismantle refuse mountains and harvest energy are being developed and improved.Read More
Mar 15, 2016 |
Ocean Thermal Energy Conversion, OTEC, is an emerging technology which generates electricity from the difference in temperature between tropical surface seawater and cooler deep water. Not only is it a renewable with baseload capability – but the power plants will also be able to produce fresh water as a by-product. The deep water used in the process is rich...Read More
Mar 9, 2016 |
Asteroid mining: the gathering of resources from space. It used to be the subject of science fiction – but in the wake of a new bill granting property rights to miners, several prospective space mining companies are already preparing and launching spacecraft. In the future, this might lead to more available resources and less mining on Earth – and...Read More
Feb 9, 2016 |
Very fast high speed rail suffers from severe air resistance. The hyperloop concept can be likened to high speed rail sent by pneumatic tube transport. A promising combination of relatively low cost, high speed and limited environmental impact makes the hyperloop a possible future fifth mode of transportation. Pilot programs are being planned – and Sweden is one of...Read More
Nov 17, 2015 |
Replacing fossil fuels with hydrogen would eliminate the combustion emissions. Compared to current battery electric vehicles, hydrogen fuel cell electric vehicles have longer driving range and can be refueled in less time. A hydrogen economy would require new infrastructure to handle storage and distribution, and an abundance of electricity generated from renewable sources. But in many countries, ambitions are...Read More
Nov 3, 2015 |
Demand for electricity fluctuates all the time, and power output has to be adjusted accordingly. With more renewable energy sources, the need for load balancing measures is increased even more. Grid energy storage would be one way to handle this, but with current battery technology, costs would be high. Liquid metal batteries, where electrodes made of cheap and abundant...Read More
Sep 29, 2015 |
Industrial livestock production is associated with considerable greenhouse gas emissions, and with other environmental issues such as nutrient pollution. Efficiency measures often collide with the interest of animal welfare. Meanwhile, there is a need to increase global food production, and the demand for meat is rising. A possible solution to the dilemma is offered by synthetic biology. Alternative sources...Read More
Jun 9, 2015 |
Electric mobility provides opportunity to reduce carbon emissions to the level of the power production itself. The rate of vehicle electrification depends on the performance of batteries, their price level, and how convenient the charging is. Now, battery development and faster charging is improving the outlook. While electronics are improving at exponential rates – as described by the famous...Read More
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