Roads in Finland in 2020 will hum to the sound of low-emission vehicles running on renewable energy, electricity, hydrogen and sustainable biofuels. The share of public transport and car pooling in densely populated urban areas will increase. Mobility arranged through easy-to-use services will become a viable alternative to buying a private car.
Researchers have developed the first fuel cell that can directly convert fuels, such as jet fuel or gasoline, to electricity, providing a dramatically more energy-efficient way to create electric power for planes or cars.
Researchers have carried out an environmental lifecycle assessment of 2-megawatt wind turbines mooted for a large wind farm in the US Pacific Northwest. They conclude that in terms of cumulative energy payback, or the time to produce the amount of energy required of production and installation, a wind turbine with a working life of 20 years will offer a net benefit within five to eight months of being brought online.
Researchers have succeeded in imaging the distribution of frozen and liquid water in a hydrogen fuel cell directly for the first time. The method opens up the prospect of studying one of the main problems of using fuel cells to power vehicles: ice can clog the pores in the fuel cells and affect their performance.
Particles of soot floating through the air and comets hurtling through space have at least one thing in common: 0.36. That, reports a research group, is the measure of how dense they will get under normal conditions, and it's a value that seems to be constant for similar aggregates across an impressively wide size range from nanometers to tens of meters.
Concentrating Solar Power projects would add additional value of 5 or 6 cents per kilowatt hour to utility-scale solar energy in California where 33 percent renewables will be mandated in six years, a new report by the Energy Department's National Renewable Energy Laboratory has found.