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Sandia team puts power into local grid with supercritical CO2 closed-loop Brayton-cycle turbine

Green Car Congress

Sandia National Laboratories researchers recently delivered electricity produced by a new power-generating system to the Sandia-Kirtland Air Force Base electrical grid. Because so much energy is lost turning steam back into water in the Rankine cycle, at most a third of the power in the steam can be converted into electricity.

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EU Innovation Fund grants €108M to RWE’s waste-to-hydrogen project FUREC

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As part of the FUREC project, RWE plans to build a pre-treatment plant in Zevenellen, Limburg, to convert non-recyclable municipal solid waste (MSW) into solid recovered fuel pellets. For comparison: This is equivalent to the output of a 700-megawatt offshore wind farm with coupled electrolyzers. textiles, paper).

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The EV Transition Explained: Can the Grid Cope?

Cars That Think

There have been vigorous debates pro and con in the United States and elsewhere over whether electric grids can support EVs at scale. In comparison, the state’s goal is to achieve this amount by 2050. Converting a gas appliance to a heat pump, for example, would draw 4 to 6 kW, while an L2 charger for EVs would be 12 to 14 kW.

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Cornell team suggests engineered bacteria could address current limitations of energy storage technologies

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Raising the penetration of renewable —an intermittent—sources of energy into the grid will require large scale electrical energy storage and retrieval. We are suggesting a new approach where we stitch together biological and non-biological electrochemical engineering to create a new method to store energy.

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Thüga Group begins construction of power-to-gas demonstration plant in Frankfurt

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The basic concept of power-to-gas (or e-Gas, as Audi calls it), is to “store” excess renewable electricity by producing hydrogen, which can then either be converted to methane; injected into the gas distribution grid directly; or used as a vehicle fuel.

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Purdue, EPFL team propose Hydricity concept for integrated co-production of H2 and electricity from solar thermal energy

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In the co-production mode, the co-produced hydrogen is stored for use in a turbine-based hydrogen water power (H2WP) cycle with calculated hydrogen-to-electricity efficiency of 65-70%—comparable to fuel cell efficiencies. Similarly, in standalone hydrogen mode, pressurized hydrogen is produced at efficiencies approaching ~50%.

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New PNNL zinc-polyiodide redox flow battery offers 2x energy density of next-best system; potential for mobile applications

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Researchers at Pacific Northwest National Laboratory (PNNL) have developed a new zinc-polyiodide redox flow battery offering more than two times the energy density of the next-best flow battery used to store renewable energy and support the power grid. Lab tests revealed the demonstration battery discharged 167 Wh l -1 of electrolyte.

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