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False Starts: The Story of Vehicle-to-Grid Power

Cars That Think

They wanted to see whether an electric vehicle could feed electricity back to the grid. The company’s president, Tom Gage , dubbed the system “vehicle to grid” or V2G. And EV owners would become entrepreneurs, selling electricity back to the grid. And indeed, that’s how promoters of vehicle-to-grid technology perceive the EV.

Grid 127
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Study finds all-electric rideshare fleet could reduce carbon emissions, but increase traffic issues

Green Car Congress

Lead author Aniruddh Mohan and colleagues wanted to develop a method that evaluated the life-cycle costs and benefits for two battery-powered ridesource fleets and a gasoline-powered one. The analysis indicated that electrified fleets had 40-45% lower greenhouse gas costs per trip compared to the gasoline-powered version.

Fleet 195
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Royal Academy of Engineering Report Says EV Success Depends on Low-Carbon Electricity, Universal Broadband Provision and Smart Grids

Green Car Congress

The introduction of electric vehicles on a large scale in the UK can only have a beneficial effect on CO 2 emissions if low-carbon electricity, universal broadband provision and smart grids are in place to support the transition, according to a new report published by the UK Royal Academy of Engineering. Pete James, Prodrive.

Universal 268
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Stanford study quantifies energetic costs of grid-scale energy storage over time; current batteries the worst performers; the need to improve cycle life by 3-10x

Green Car Congress

A plot of ESOI for 7 potential grid-scale energy storage technologies. Benson from Stanford University and Stanford’s Global Climate and Energy Project (GCEP) has quantified the energetic costs of 7 different grid-scale energy storage technologies over time. Credit: Barnhart and Benson, 2013. Click to enlarge.

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New nanoparticle copper compound cathode could enable low-cost, long-life and high-power potassium-ion batteries for grid storage

Green Car Congress

Yi Cui has developed nanoparticle copper hexacyanoferrate (CuHCF) battery cathode materials that demonstrate long cycle life and high power for use in grid storage applications. Short-term transients, including those related to wind and solar sources, present challenges to the electrical grid. —Wessells et al.

Low Cost 304
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More details about California’s proposal requiring bidirectional charging capabilities for all EVs

Charged EVs

In recent testimony, Nuvve CEO Gregory Poilasne told the lawmakers that bidirectional charging can reduce the total cost of EV ownership, and that it’s essential for integrating more renewable energy into the grid. Then it takes the DC from the bus, or car, and converts it back to AC to provide power for the grid.

Charging 133
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CESifo: EVs not the best option for reduction in on-road CO2 in Germany given power mix

Green Car Congress

Unfortunately, due to our grid situation, electric cars are still too early for this strategic goal in the sense of German climate protection efforts. According to the study, natural gas combustion engines are an ideal technology for transitioning to vehicles powered by hydrogen or “green” methane in the long term. —Buchal et al.

Germany 406