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Daimler Buses introduces Citaro hybrid bus; available on diesel and gas models; separate 48V network

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The hybrid powertrain is optionally available for a large number of model variants of the best-selling urban bus, even for the natural-gas-engined Citaro NGT. The electric power generated by recuperation is stored in a bank of supercapacitors. These electricity storage units are characterized by a high power density.

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ICL model predicts lithium-ion batteries most competitive for storage applications by 2030

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levelized cost)—as opposed to the investment cost—of 9 electricity storage technologies for 12 different applications between 2015 and 2050. Oliver Schmidt, Sylvain Melchior, Adam Hawkes, Iain Staffell (2018) “Projecting the Future Levelized Cost of Electricity Storage Technologies,” Joule doi: 10.1016/j.joule.2018.12.008.

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DLR team integrates solar heat into solid oxide electrolyzer for highly efficient hydrogen production

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In the context of a wider use of renewable energy sources such as wind, photovoltaic and solar thermal power chemical energy carriers are needed for electricity storage due to the intermittent availability of renewable energy sources to maintain the high stability of the electricity infrastructure. —Schiller et al.

Solar 207
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Toshiba H2One hydrogen-based autonomous energy supply system now providing power to a Kyushu Resort Hotel; hydrogen storage alloy

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H2One integrates a photovoltaic power generation system with batteries for storing output power; a hydrogen-producing water electrolysis unit; solid state hydrogen storage—a MmNi 5 (Mischmetal-nickel) alloy); and a hydrogen fuel cell unit. Photovoltaic capacity: 62 kW; Fuel cell output: 54kW; Electricity storage capacity: 1.8

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Study Finds Bioelectricity Better Option Than Liquid Biofuels for Transportation Output and GHG Emissions

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The authors point out their study looked at only two criteria, kilometers travelled and greenhouse gas offsets, but did not examine the performance of electricity and ethanol for other policy-relevant criteria such as water consumption, air pollution or economic costs. “We Campbell et al. Resources. Campbell, D. Lobell, C.

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New $30M ARPA-E program to develop new solar conversion and storage technologies; targeting higher solar penetration in mix

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Schematic comparing the cost and dispatchability of PV to CSP with thermal storage. The “PV+Storage” box includes the high cost of electrical storage for PV. The FOCUS Program target zone for electricity generation is indicated. b) Hybrid storage system (award Category 2). Source: ARPA-E. Click to enlarge.

Solar 290
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California Energy Commission awards more than $5.5M for green transportation projects and $1.8M for 20 energy research projects

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They are available only for new natural gas and propane vehicles that meet all California Air Resources Board emission requirements. Rhotech Solar of South San Francisco was awarded $66,300 to determine the feasibility of adding a glazing layer to domestic water heaters to improve thermal performance by at least 70%.

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