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Preview: Alternative Energy and Fuel News - ENN

Alternative Energy and Fuel News - ENN





 



Sun, Wind, and Power Trading

Tue, 09 Jan 2018 10:17:00 EST

Our power grid works at a frequency of 50 hertz – usually generated by turbines, for example in hydro- or coal power plants, which rotate at a speed of 50 revolutions per second. "When a consumer uses more electrical energy from the power grid, the grid frequency drops slightly before an increased energy feed-in re-establishes the original frequency," explains Benjamin Schäfer from the Max Planck Institute for Dynamics and Self-Organization (MPIDS) in Göttingen and lead author of the study. "Deviations from the nominal value of 50 hertz must be kept to a minimum, as otherwise sensitive electrical devices could be damaged."(image)



NUS Researchers Pioneer Water-Based, Eco-Friendly and Energy-Saving Air-Conditioner

Mon, 08 Jan 2018 16:01:00 EST

A team of researchers from the National University of Singapore (NUS) has pioneered a new water-based air-conditioning system that cools air to as low as 18 degrees Celsius without the use of energy-intensive compressors and environmentally harmful chemical refrigerants. This game-changing technology could potentially replace the century-old air-cooling principle that is still being used in our modern-day air-conditioners. Suitable for both indoor and outdoor use, the novel system is portable and it can also be customised for all types of weather conditions.(image)



Shakedown in Oklahoma: To Cut the Number of Bigger Earthquakes, Inject Less Saltwater

Fri, 05 Jan 2018 15:13:00 EST

In Oklahoma, reducing the amount of saltwater (highly brackish water produced during oil and gas recovery) pumped into the ground seems to be decreasing the number of small fluid-triggered earthquakes.(image)



We Need One Global Net­work of 1000 Sta­tions to Build an Earth Ob­ser­vat­ory

Thu, 04 Jan 2018 13:17:00 EST

We also need to share our data. So says world’s most prominent geoscientist, professor Markku Kulmala.Environmental challenges, climate change, water and food security and urban air pollution, they are all interlinked, yet each is studied as such, separately. This is not a sustainable situation, for anybody anymore. To tackle this, professor Markku Kulmala calls for a continuous, comprehensive monitoring of interactions between the planet’s surface and atmosphere in his article “Build a global Earth observatory” published in Nature, January 4, 2018.(image)



Tweaking quantum dots powers-up double-pane solar windows

Wed, 03 Jan 2018 11:14:00 EST

Using two types of “designer” quantum dots, researchers are creating double-pane solar windows that generate electricity with greater efficiency and create shading and insulation for good measure. It’s all made possible by a new window architecture which utilizes two different layers of low-cost quantum dots tuned to absorb different parts of the solar spectrum.(image)



A Fossil Fuel Technology That Doesn't Pollute

Tue, 02 Jan 2018 15:57:00 EST

Engineers at The Ohio State University are developing technologies that have the potential to economically convert fossil fuels and biomass into useful products including electricity without emitting carbon dioxide to the atmosphere.(image)



Technology and cost reviews for renewable energy in Alaska: Sharing our experience and know-how

Thu, 28 Dec 2017 11:27:00 EST

Many of the more than 200 remote communities in Alaska are turning to renewable energy to reduce reliance on high-cost imported fuels, and to ensure more independent and reliable energy availability based on local sources. Alaska is home to a substantial fraction of the developed microgrids in the world. Incorporating grid-scale levels of renewably sourced generation, such as wind and solar power, has led to an unusual concentration of experience and expertise in the design, development, and operation of these hybrid renewables-diesel microgrids.(image)