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IIASA-led study proposes Underground Gravity Energy Storage as long-term energy storage solution for renewables

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Renewable energy sources are central to the energy transition toward a more sustainable future. However, because sunshine and wind are inherently variable and inconsistent, finding ways to store energy in an accessible and efficient way is crucial. Dabek, P.B., Brandão, R., Patro, E.R., Leal Filho, W., van Ruijven, B.,

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BNEF: cost of new renewables rises as inflation starts to bite

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The cost of new-build onshore wind has risen 7% year on year, and fixed-axis solar has jumped 14%, according to the latest analysis by research company BloombergNEF (BNEF). BloombergNEF’s estimates for the global LCOE for utility-scale PV and onshore wind rose to $45 and $46 per megawatt-hour (MWh), respectively, in the first half of 2022.

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EIA: natural gas-fired reciprocating engines are being deployed more to balance renewables

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Before 2010, reciprocating engines typically had no more than 9 MW in capacity, but in recent years, larger units that range from 16 MW to 19 MW have been installed throughout the United States. Power plants with large reciprocating engines are often located in states with significant renewable resources, specifically wind generation.

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NSF awards UCSD team $39M to improve integration of distributed energy resources into grid; EV batteries also

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Most utilities struggle with the fact that renewable and distributed energy sources are not as stable as traditional sources, such as natural-gas power plants. Solar panel output depends on the weather, for example, as do wind turbines. The goal is to make the testbed available to outside research teams and industry by 2025.

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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. As we move to more and more renewable penetration, this intermittency will make a greater impact on the electric power system. —Emre Gençer, co-author. —Drake Hernandez.

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New modeling study suggests wind farm power generation capacity has been significantly overestimated

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Keith suggests that the power capacity of large-scale wind farms may have been significantly overestimated. Large-scale wind farms can comprise hundreds of tower-mounted turbines. Each wind turbine creates a “wind shadow” behind it, in which the turning blades slow the air. Adams and Harvard University’s David W.

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IBM introduces new wind and solar forecasting system for utilities; big data analytics and weather modeling to predict output

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IBM has developed an advanced power and weather modeling technology that will help utilities increase the reliability of renewable energy resources. The solution combines weather prediction and big data analytics to forecast accurately the availability of wind power and solar energy.

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