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Researchers developing DC micro smart grid for charging EV fleets; Li-ion, redox flow batteries and renewables

Green Car Congress

A team from Fraunhofer Institute for Industrial Engineering IAO, together with Daimler AG and the Institute for Human Factors and Technology Management at the University of Stuttgart, is developing both the charging infrastructure and the energy management systems required to manage large fleets of EVs in a project called charge@work.

Grid 244
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False Starts: The Story of Vehicle-to-Grid Power

Cars That Think

In 2001, a team of engineers at a then-obscure R&D company called AC Propulsion quietly began a groundbreaking experiment. 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. In the boom of the 1920s, U.S.

Grid 135
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ORNL demos 20 kW bi-directional wireless charging on UPS PHEV truck; 11" air gap, >92% efficiency

Green Car Congress

The system transferred electricity from the power grid to the vehicle battery terminals at more than 92% efficiency. Doing so would give energy flexibility to a fleet owner’s business, and help better manage on-site generation such as solar power. ORNL’s bidirectional technology is fully compliant with grid power quality standards.

Charging 380
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Advanced Propulsion Centre UK publishes automotive power electronics value chain

Green Car Congress

Electric vehicles use 30% more chips than ICE (internal combustion engine) vehicles—meaning shortages will impact on 2030 manufacturing targets. There are three main power electronic components on board battery electric vehicles; an inverter, a DC-DC converter, and an onboard charger (OBC).

Power 293
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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. The city has provided incentives for the purchase of both EVs and charging ports, the installation of heat-pump water heaters , and the installation of solar and battery-storage systems.

Grid 115
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US and Japan collaborating on smart grid project in Hawaii; EV operation and charging, including grid-balancing services

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JFE Engineering Corporation, Sharp Corporation, Hewlett-Packard Japan, Ltd., have been selected as contractors for a joint US-Japan collaboration supporting a Smart Grid project on the Hawaiian island of Maui. Part of the demonstration plan includes utilization of the EVs for grid-balancing services ( earlier post ).

Grid 218
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Panasonic to begin mass-production of long-life Li-ion battery system for solar-powered homes in Europe

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The battery system stores excess energy generated from the photovoltaic (PV) power system during peak hours of PV generation and discharges the energy as needed, providing a solution as a household battery storage system that helps self-consumption of solar-generated power.

Solar 225