[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]
Oak Ridge AMIE demo integrates 3D-printed building, natural gas hybrid with bi-directional wireless power transfer
September 24, 2015
A research demonstration unveiled at the Department of Energy’s Oak Ridge National Laboratory (DOE ORNL) combines clean energy technologies into a 3D-printed building and a 3D-printed natural gas-powered hybrid vehicle to showcase a new approach to energy use, storage and consumption. The Additive Manufacturing Integrated Energy (AMIE) demonstration, displayed at DOE’s Office of Energy Efficiency and Renewable Energy Industry Day event, is a model for energy-efficient systems that link buildings, vehicles and the grid.
An ORNL team worked with industrial partners to manufacture and connect a natural-gas-powered hybrid electric vehicle with a solar-powered building to create an integrated energy system. Power can flow in either direction between the vehicle and building through a lab-developed wireless technology. The approach allows the car to provide supplemental power to the 210-square-foot building when the sun is not shining.
BMW launches BMW i ChargeForward pilot in SF Bay Area
August 04, 2015
The BMW Group Technology Office, together with Pacific Gas and Electric Company (PG&E), have launched an 18-month pilot of the BMW i ChargeForward Program in the San Francisco Bay Area. The program is now issuing calls to participating BMW i3 drivers in the Bay Area to request the interruption of the charging of their EVs for one hour.
Working with a group of nearly 100 BMW i3 drivers, selected from approximately 400 applicants, BMW i ChargeForward will demonstrate how intelligent management of electric vehicle charging can contribute to optimizing electric power grid efficiency while reducing total cost of electric vehicle ownership. The study has two parts: (1) a managed charge pilot program involving BMW i3 owners; and (2) a battery second-life energy storage system.
Daimler wraps up eMERGE EV 2-year fleet trial, launches larger eMERGE2 with EVs and PHEVs
July 31, 2015
Daimler reports that the two-year eMERGE real-world trial of 146 smart fortwo electric drive vehicles has been completed. Those taking part in the project were private and business customers in Berlin, Potsdam and North Rhine-Westphalia. The lowest average energy consumption per vehicle over one year was 10.4 kWh/100 km, while the longest single-charge range was 161 kilometers (100 miles). The smart fortwo electric drive is certified with a consumption of 16.3 kWh/100 km and a range of 145 kilometers (90 miles).
eMERGE is being followed directly by eMERGE2, which will see up to 200 cars being used in the model regions of Berlin/Potsdam, Stuttgart, Rhine-Ruhr and Rhine-Main. The vehicle fleet will include the battery electric B 250 e and plug-in hybrids from Mercedes-Benz. The different technology and vehicle segments suggest different use cases than the smart fortwo electric drive.
Qualcomm and BRUSA sign commercial wireless electric vehicle charging license agreement
July 29, 2015
BRUSA Elektronik AG, an automotive Tier 1 power electronics supplier, has licensed Qualcomm Incorporated’s Halo (earlier post) patented inventions to commercialize Wireless Electric Vehicle Charging (WEVC) systems for Plug-In Hybrid and Electric Vehicles (EVs). Under the terms of the agreement, Qualcomm granted to BRUSA a royalty-bearing patent license to develop, make and supply WEVC systems for certain automobile manufacturers.
BRUSA, which has been working on its own Inductive Charging System (ICS) for wireless power transfer (WPT), developed its own coil geometry: FRAME technology. The coil is rectangular and enables inductive charging of electric vehicles with the integration of power electronics both in the vehicle and in the base plate, enabling a one-box system.
Researchers show use of MFRE can at least double wireless power transfer efficiency; more efficient than metamaterials
July 23, 2015
Researchers at North Carolina State University and Carnegie Mellon University have shown that passing wireless power transfer through a magnetic resonance field enhancer (MR-FE)—which could be as simple as a copper loop—can at least double transfer efficiency as compared to transferring through air alone. MR-FE use could potentially boost transfer efficiency by as much as 5,000% in some systems, the researchers said.
Wireless power transfer works via magnetic coupling or inductive coupling, and can achieve very high efficiency when the distances between the transmitter and receiver are small—less than a few centimeters. In such a case, the transmitter and receiver are strongly coupled, with a high coupling coefficient (usually greater that 0.9). As distance increases, the strength of the coupling decreases. Enhancing wireless power transfer efficiency over greater distances—to support, for example, the wireless charging of electric vehicles—has thus been a major goal of many research groups.
ELIX Wireless introduces MDC-based 10kW wireless charging solution
July 15, 2015
ELIX Wireless introduced the E10K Wireless Charging System, a wireless charging solution that delivers a full 10kW of wireless power transfer. The E10K Wireless Charging System is based on ELIX Wireless’ patented Magneto-Dynamic Coupling (MDC) technology. MDC, developed at the University of British Columbia, is based on two rotating permanent magnets in transmitter and receiver, rather than resonant inductive technology. (Earlier post.) ELIX Wireless rolled out its initial product offering, the E1K Wireless Charging System, to customers in early 2015. The E10K Wireless Charging System is now commercially available to customers and partners.
Typical wireless charging solutions available in the market today are based on inductive technologies and deliver up to 7.7kW. To meet the demand for a faster, higher power wireless charging solution that can operate under extreme environmental conditions, ELIX Wireless developed the E10K Wireless Charging System. E10K “building blocks” can be combined together to create even higher power systems.
EU project V-Charge makes final demonstration of automated valet-parking and inductive charging system
The V-Charge (Valet Charge) research project, a four-year, €5.63-million (US$6.21-million) effort partly funded through the EU’s Seventh Framework Programme for Research to develop systems for automated valet-parking and inductive charging for electric vehicles, has made the final presentation of its work in a demonstration at the Excellence Parking Garage at Amsterdam airport.
The fully automated parking system relieves drivers of the tiresome and time-consuming task of finding a parking spot. The vehicle not only automatically looks for an empty parking space, but finds an empty space with charging infrastructure and inductively charges its battery. Once the charging process is finished, it automatically frees up the charging bay for another electric vehicle and looks for a conventional parking space.
Hyundai-Kia America and Mojo Mobility partnering on wireless fast-charging project
July 08, 2015
Hyundai-Kia America Technical Center, Inc., (HATCI) and Mojo Mobility, Inc., a wireless power technology company, have been awarded funding from the US Department of Energy’s (DOE) Office of Energy Efficiency and Renewable Energy (EERE) Vehicle Technologies (VT) program to research and develop a system for wireless fast-charging an electric vehicle at up to a 19.2 kW power transfer rate. The two have already been partnering on a DOE-funded project on high-efficiency, low-EMI and positioning-tolerant wireless charging of EVs.
Mojo Mobility’s Near Field Power technology is able to meet charging power levels ranging from 1 W to 90 W and higher for mobile devices and up to 20 kW for electric vehicles. The wireless charging systems are capable of transferring their high power without need for precise alignment between the charger and the vehicle.
A closer look at Audi’s new R8 e-tron EV and battery
June 12, 2015
The model line-up of the second generation of Audi’s high-performance R8 sports car, unveiled at the Geneva Motor Show earlier this year, includes the new R8 e-tron battery-electric vehicle. (Earlier post.) The new R8 e-tron delivers 340 kW (456 hp) of power; acceleration from 0 to 100 km/h (62.1 mph) in 3.9 seconds; and a driving range of up to 450 km (279.6 mi). Range for the first generation R8 e-tron was was 215 km (133.6 mi).
Available for order this year upon customer request, the new R8 e-tron uses a newly developed high energy density Li-ion technology optimized for a purely electric vehicle drive. Li-ion cell energy density was increased from 84 to 152 Wh/kg; in comparison to the first technology platform, the battery capacity has grown from 48.6 kWh to 90.2 kWh—without changing the package.
CA Energy Commission awards CSE $1.5M for development of standards-based smart EV charging platform; first employment of ISO/IEC 15118
The California Energy Commission has awarded a $1.5 million grant to the Center for Sustainable Energy (CSE) to lead development of an advanced management platform for integrating electric vehicle (EV) charging with utility-scale energy systems. CSE will work closely with KnGrid, a leader in vehicle-grid communications, to create a standardized platform that optimizes charging benefits for both grid operators and vehicle owners. The result will be the first data platform to employ the international ISO/IEC 15118 standard for flexibly managing vehicle charging with data from the power grid.
The project team will develop and implement the first standards-based smart charging platform, termed a “demand clearing house” (DCH) in the international ISO/IEC 15118 protocol (entitled “Road vehicles - Vehicle to grid communication interface”), that will consolidate real-time grid profiles from local utilities and energy market pricing from the California Independent System Operator (CAISO) with simultaneous charging of grid-connected EVs.
1st major utility proposal for EV charging infrastructure presented to CPUC
June 05, 2015
A diverse set of public interest groups, automakers, labor unions, and San Diego Gas & Electric (SDG&E) submitted a proposed settlement to the California Public Utilities Commission (CPUC) to accelerate the deployment of smart electric vehicle (EV) charging stations that would support the utility grid in San Diego.
The application is California’s first utility pilot proposal to help develop charging infrastructure, and, through pricing that allows for customer-managed charging, to manage transportation electrification load to support the evolving needs of an electrical grid increasingly dominated by variable renewable energy.
Ford partners with Haier, Trina Solar and Delta Electronics to launch MyEnergi Lifestyle in China
May 27, 2015
At Consumer Electronics Show Asia, Ford launched a strategic collaboration with Haier (home appliance), Trina Solar (solar power) and Delta Electronics (power management) to introduce MyEnergi Lifestyle (earlier post) to China, a holistic approach for lowering the energy costs and carbon footprint of Chinese families.
MyEnergi Lifestyle, designed to address China’s energy needs and air quality concerns, showcases how combining renewable energy sources, efficient home appliances and a plug-in vehicle can significantly reduce energy costs and carbon footprint. Ford introduced a MyEnergi Lifestyle collaboration for the US in 2013, working with Whirlpool, SunPower and Eaton.
CMU study finds controlled EV charging can reduce generation cost, but at greater health and environmental costs depending upon the generation mix
April 16, 2015
In a study focused on the PJM portion of the US electricity grid, researchers at Carnegie Mellon University (CMU) found that although charging electric vehicles at night (when electricity is cheap and wind power is typically more plentiful) could lower electricity costs, doing so also creates more air emissions, and that the health and environmental costs from these emissions outweigh the electricity cost savings. A paper describing the work is published in the ACS journal Environmental Science & Technology.
Results from the study also suggest that with sufficient coal plant retirement and sufficient wind power, controlled charging could result in positive net benefits instead of negative. The result of the analysis depends on the details of the region, notes CMU Professor Jeremy Michalek, corresponding author—i.e., other parts of the US and the world could be different. The question of electricity costs vs. health and environmental cost is important to ask everywhere, Michalek said.
Navigant forecasts vehicle-grid integration services revenue to reach nearly $21M by 2024
March 10, 2015
The term VGI refers to a suite of hardware and software technologies that enable plug-in electric vehicles (PEVs) to participate in grid services such as the ancillary services markets (typically frequency regulation), demand response (DR) programs, and/or the operation of microgrids. The VGI market can be separated into two categories, according to the report: PEVs can provide services to the grid by changing the rate at which they consume power, which is known as vehicle-to-grid communications for charge management, or V1G. Or they can provide power back to the grid, a bidirectional system known as vehicle-to-grid power transfer, orV2G. While V2G pilots have taken center stage, to date, V1G pilots have fewer barriers in regards to automaker adoption and accessible markets.
SDG&E piloting integration of EVs and energy storage systems into CAISO energy markets for demand response services
February 24, 2015
In a pilot vehicle-to-grid project, San Diego Gas & Electric (SDG&E) is actively bidding a group of energy storage systems and electric vehicle fleets as one resource directly into the California Independent System Operator’s (CAISO) energy markets. These markets include those that address short-term imbalances in electricity supply caused by such things as intermittent renewable energy. This marks SDG&E as one of the first utilities to integrate EVs into California’s wholesale energy market.
The project currently aggregates stationary storage systems together with the charging demand of EV fleets at five separate locations throughout San Diego County. The assets are remotely controlled using software that both balances the participant’s charging needs, and identifies opportunities to provide demand response services at the grid level.
PG&E proposes major build-out of 25,000 electric vehicle charging stations in California
February 09, 2015
Pacific Gas and Electric Company (PG&E) has filed an application with the California Public Utilities Commission (CPUC) for permission to build an estimated 25,000 electric vehicle (EV) chargers at sites across its service area in Northern and Central California—8 times the number currently installed. If approved, this program would be the largest deployment of EV charging stations in the country, PG&E said.
The cost of the plan would be shared by all electric customers as a contribution to helping the state meet its clean air and climate goals. The total impact on system average bundled rates would be minimal in 2016 and 2017 and would average only a tenth of a cent per kilowatt-hour over the next five years of the program. A typical residential customer would pay about 70 cents more per month over the period 2018 to 2022, according to PG&E.
BMW presents research application for inductive charging at CES
January 07, 2015
At CES, BMW is demonstrating a research application for inductive—i.e. wireless—battery charging using a BMW i8. Earlier this year, BMW and Daimler agreed jointly to develop and to implement one common technology for wireless recharging high-voltage batteries of electric drive and plug-in hybrid vehicles. (Earlier post.)
Inductive charging provides reliable, wear-free and user-friendly EV battery charging using a magnetic field, without the need for a hard-wired connection between the vehicle and the power source. The system comprises a primary and a secondary coil. The primary coil is fitted in a base pad underneath the vehicle, for example on or embedded in the garage floor. The secondary coil is integrated in the underside of the BMW i8.
BMW i ChargeForward Program to demo contribution of intelligent EV charging to grid efficiency
January 05, 2015
At the Consumer Electronics Show in Las Vegas, BMW announced the BMW i ChargeForward Program—a pilot study to be undertaken by the BMW Group Technology Office, together with Pacific Gas & Electric Company (PG&E). Working with a select group of BMW i3 drivers, BMW i ChargeForward will demonstrate how intelligent management of electric vehicle charging can contribute to improved electric power grid efficiency while reducing total cost of electric vehicle ownership.
BMW i ChargeForward is designed to explore how to better match the impact of electric vehicles with other dynamic energy supply and demand sources. The study has two parts, a managed charge pilot program involving BMW i3 owners and a battery second life energy storage system. In the managed charge pilot program, select BMW i3 owners will allow PG&E to request a delay in the charging of their vehicles by up to an hour, when grid loads are at their peak. The program also includes a “second life” for used MINI E batteries, by repurposing these batteries into a stationary solar-powered electric storage system located at the BMW Technology Office in Mountain View, California.
DOE releases report from 6 projects evaluating EV charging impacts on grid and customer charging behaviors
December 21, 2014
|Charging patterns with (TOU) and without (RES) whole house time-of-use rate during summer weekdays at Progress Energy, one of the participating utilities. (Peak period is in gray.) Click to enlarge.|
The US Department of Energy (DOE) has released a report detailing the findings from six utilities which evaluated operations and customer charging behaviors for in-home and public electric vehicle charging stations. The work was done under the DOE’s Office of Electricity Delivery & Energy Reliability’s (OE) Smart Grid Investment Grant (SGIG program).
This report provides the results of these SGIG projects to help individual utilities determine how long existing electric distribution infrastructure will remain sufficient to accommodate demand growth from electric vehicles, and when and what type of capacity upgrades or additions may be needed. The report also examines when consumers want to recharge vehicles, and to what extent pricing and incentives can encourage consumers to charge during off-peak periods.
California to award up to $4M for projects to advanced smart charging and V2G technologies
December 19, 2014
The California Energy Commission has issued a solicitation (PON-14-310, Driving the Integration of Electric Vehicles to Maximize Benefits to the Grid) to fund Applied Research and Development projects that will advance technologies and strategies for smart and efficient charging and vehicle-to-grid communication interfaces that will provide maximum benefits to both the electricity grid and the plug-in electric vehicle (PEV) market.
There is up to $4 million available for grants awarded under this solicitation. The minimum funding amount for each project is $500,000; maximum funding amount is $1.5 million. Match funding is not required for this solicitation; however, applications that include match funding will receive additional points during the scoring phase.
Siemens, Duke Energy and Ford demonstrate lower cost home smart charging technology for plug-ins; due on market next year
December 05, 2014
Siemens Energy Management Division has teamed with Duke Energy and Ford to demonstrate the results of an 18-month effort to reduce the cost and expand electric vehicle charging technologies. Held at the Duke Energy Envision Center in Erlanger, Ky., and utilizing a Ford Fusion Energi Plug-In Hybrid, Siemens provided the first UL-approved residential electric vehicle supply equipment (EVSE) to demonstrate the ability to monitor status, report energy use, and be controlled locally from the local area network and from the cloud.
In 2012, Siemens was awarded $1.6 million in development funding from the US Department of Energy (DOE) to support research aimed at significantly reducing the current costs of electrical vehicle (EV) chargers and developing “smart” charging capabilities that support power grid efficiency and consumer demand.
Air Force tests all plug-in vehicle fleet in California; part of large DoD V2G project
November 14, 2014
|A fleet of plug-in electric vehicles sits ready to roll at Los Angeles Air Force Base in El Segundo, California. (US Air Force photo by Sarah Corrice/RELEASED.) Click to enlarge.|
The Air Force unveiled the Department of Defense’s first non-tactical vehicle fleet composed entirely of plug-in electric vehicles at Los Angeles Air Force Base today. The 42-vehicle fleet marks a milestone in partnership between federal, state and private energy organizations, as well as in DoD’s demonstration of emerging vehicle-to-grid technology.
The PEV fleet includes both electric and hybrid vehicles ranging from sedans to trucks and a 12-passenger van. California energy providers and regulators worked closely with the Air Force on safety and performance testing as well as technical and regulatory aspects of launching the vehicles.
Nissan begins testing combination of LEAF EVs and “LEAF to Home” for grid demand response services
October 16, 2014
Nissan Motor Corporation has begun testing in Japan of a system to use electric vehicle technology to help power grids cope with peaks in demand.
Nissan is using Nissan LEAF EVs paired with the LEAF to Home power supply system (earlier post) for demand response testing at several of its sales outlets run by subsidiary Kanagawa Nissan Co., Ltd. to assess the effectiveness of EV batteries when used for energy management. The tests are being conducted by ENERES Co., Ltd.
EPRI and partners to stage public demo of Open Vehicle-Grid Integration (VGI) Platform software
October 14, 2014
The Electric Power Research Institute (EPRI), along with several auto manufacturers, utilities, and regional transmission organizations, will demonstrate the Open Vehicle-Grid Integration (VGI) Platform software system, developed by EPRI and Sumitomo Electric Industries. The software is an advanced software platform for integrating plug-in electric vehicles (PEV) with smart grid technologies. (Earlier post.)
The live demonstration will showcase demand response and load curtailment capabilities through a single standards-based interface. The demonstration will involve 8 EV manufacturers, and attendees will include representatives from the state and federal public agencies involved with clean energy and transportation technologies, as well as the utility and automotive industries.