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The latest news about environmental and green
technologies – renewables, energy savings, fuel cells

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Energy starts at home

The future of sustainable energy is likely to include widespread production and distribution, or what some are now calling 'open energy systems'.

Posted: Feb 17th, 2015

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Researchers propose a novel solar CPV/CSP hybrid system

In this new system, the dissipated heat is used to produce superheated vapor of refrigerant which is effective to generate power through an organic Rankine cycle (ORC), and thus the solar-to-electricity efficiency of the system can be significantly improved.

Posted: Feb 11th, 2015

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Geoengineering report: Scientists urge more research on climate intervention

Deep cuts in greenhouse gas emissions, while necessary, may not happen soon enough to stave off climate catastrophe. So, in addition, the world may need to resort to so-called geoengineering approaches that aim to deliberately control the planet's climate. That's according to a National Research Council committee that today released a pair of sweeping reports on climate intervention techniques.

Posted: Feb 10th, 2015

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U.S. trend toward sustainable energy continued in 2014

The United States saw continued growth in renewable energy, natural gas and energy efficiency in 2014, according to the third annual Sustainable Energy in America Factbook. The Factbook shows that U.S. deployment of sustainable energy increased as prices continued to fall and that investment in U.S. clean energy grew at a higher rate.

Posted: Feb 9th, 2015

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Preventing greenhouse gas from entering the atmosphere

A novel class of materials that enable a safer, cheaper, and more energy-efficient process for removing greenhouse gas from power plant emissions has been developed by a multi-institution team of researchers. The approach could be an important advance in carbon capture and sequestration (CCS).

Posted: Feb 5th, 2015

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Clean technology can partially make up for weak CO2 pricing

Clean technology support can to some extent make up for weak CO2 pricing and hence help keep the two degrees target within reach, a new study shows. Even if the world climate summit in Paris later this year is successful in striking a climate deal, it might not bring about sharp greenhouse-gas cuts in the near-term. However, emission targets could be strengthened by complementary policies.

Posted: Feb 2nd, 2015

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A long-lasting obstacle of solid oxide fuel cells has been overcome

One of the major drawbacks of carbon-fueled battery cells is the intrinsic presence of CO2, which impedes CO oxidation and, therefore, lowers the energy density of the cell. Researchers describe a novel dual-phase ion-conducting ceramic membrane that is absolutely gas-tight but highly permeable for CO2.

Posted: Jan 30th, 2015

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