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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 key to this Ocean Renewable Energy Storage (ORES) system is the placement of 30-meter-diameter hollow concrete spheres on the seafloor under the wind turbines. Earlier post.).

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ExxonMobil expands participation in MIT Energy Initiative’s low-carbon research; Mobility of Future study

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ExxonMobil said extended its support of the MIT Energy Initiative’s (MITEI) low-carbon energy research and education mission by renewing its status as a founding member for another five years. ExxonMobil first signed on as a member of the initiative in 2014.

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MITEI study finds hydrogen-generated electricity is a cost-competitive candidate for backing up wind and solar

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A team at MITEI (MIT Energy Initiative) has found that hydrogen-generated electricity can be a cost-competitive option for backing up wind and solar. California draws more than 20% of its electricity from solar and approximately 7% from wind, with more VRE coming online rapidly. —Drake Hernandez.

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This lithium-free battery startup just raised $78M in Series C funding

Baua Electric

Kripa Varanasi, cofounder of Alsym Energy and professor of mechanical engineering at MIT, said: Battery storage systems can help provide firm capacity to the grid when the sun is not shining and wind is not blowing, but changing climates and hazardous environments demand flexible solutions that can meet a range of needs safely and economically.

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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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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 Future of Natural Gas: An Interdisciplinary MIT Study.

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A New Energy-Efficient Hydrogel Pulls Water From Air

Cars That Think

By interspersing thermoreactive segments among smaller areas of absorption, this material releases water at a relatively low temperature, achievable with solar energy alone. The hydrogel can release more than 80 percent of absorbed water in about 20 minutes at a temperature of 40 °C—hot, but not uncommon in desert environments.

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