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MIT researchers propose subsea version of pumped hydro for renewable energy storage

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Researchers at MIT are proposing using a variation on pumped hydroelectric systems for storage of electricity produced by offshore wind farms. The 1,000 wind turbines that the spheres could anchor could, on average, replace a conventional on-shore coal or nuclear plant. Earlier post.).

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MIT Report Finds Natural Gas Has Significant Potential to Displace Coal, Reducing Greenhouse Gas Emissions; Role in Transportation More Limited

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Natural gas will play a leading role in reducing greenhouse-gas emissions over the next several decades, largely by replacing older, inefficient coal plants with highly efficient combined-cycle gas generation, according to a major new interim report out from MIT. The first two reports dealt with nuclear power (2003) and coal (2007).

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U Chicago, MIT study suggests ongoing use of fossil fuels absent new carbon taxes

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A paper by a team from the University of Chicago and MIT suggests that technology-driven cost reductions in fossil fuels will lead to the continued use of fossil fuels—oil, gas, and coal—unless governments pass new taxes on carbon emissions. for oil, 24% for coal, and 20% for natural gas.

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Separate MIT, IEA reports both outline major expansion in role of natural gas; caution on climate benefits

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” The MIT report said that natural gas should be seen as a “ bridge ” to a low-carbon regime, rather than as the ultimate long-term solution itself. MIT: The Future of Natural Gas. Separately, the International Energy Agency (IEA) released its own report exploring the potential for a “golden age” of gas. Source: IEA.

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Transphorm introduces Gallium Nitride diode; >99% efficient DC-DC boost converter

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Transphorm says that its solutions cut energy waste by 20% and simplify the design and manufacturing of a wide variety of electrical systems and devices, including motor drives, power supplies and inverters for solar panels and electric vehicles. Perreault, MIT). At APEC, startup Transphorm Inc. —Primit Parikh.

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ARPA-E Selects 37 Projects for $106M in Funding in Second Round; Electrofuels, Better Batteries and Carbon Capture

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Electrofuels approaches will use organisms able to extract energy from other sources, such as solar-derived electricity or hydrogen or earth-abundant metal ions. The aerobic microbe has been engineered at MIT and is capable of converting a variety of organic compounds into oil, from which biodiesel may be produced. Electrofuels.

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The Complex Calculus of Clean Energy and Zero Emissions

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How fast can you ramp your power plants up and down to handle the variability from wind and solar? Energy Information Administration (EIA) and IEA vastly under project ed wind and solar deployments. We did downscaling of where you would build all the wind and solar generation that the model suggested.

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