article thumbnail

UC Davis researcher finds ride-hailing EVs offer triple the emissions benefits of a personally owned EV

Green Car Congress

Replacing a gasoline-powered ride-hailing vehicle with an electric vehicle can deliver three times the carbon benefits of a personally owned electric vehicle, according to a study by a University of California, Davis, researcher of Uber and Lyft data. The paper is published in the journal Nature Energy. Nat Energy (2020).

Davis 239
article thumbnail

Study using extreme value theory finds lack of uniform trends but increasing spatial variability in rainfall extremes in India

Green Car Congress

Extreme value theory , used in science, engineering, insurance and risk management, provides a theoretical foundation for building statistical models describing extreme events. This information was provided in 1-by-1-degree spatial grids by the India Meteorological Department. —Auroop Ganguly.

India 199
article thumbnail

IBM and EKZ partner to make plug-in charging more convenient with new smartphone application

Green Car Congress

This near real-time information will also help utility providers better manage power grid loads during peak charging times. The pilot combines a Web-based application designed and developed by IBM scientists in Zurich and a data recording device created by the Zurich University of Applied Sciences (ZHAW).

article thumbnail

Predictive Model for Near Surface Turbulence Could Lead to Improved Engineering for Lower Fuel Consumption

Green Car Congress

Researchers at the University of Melbourne (Australia) are proposing a mathematical model for predicting fluid flows close to surfaces (near-wall turbulence) given only large-scale information from the outer boundary layer region. Credit: Science , Marusic et al. Click to enlarge. —Marusic et al. Using this model, Marusic et al.

Engine 186
article thumbnail

DOE AVTA Completes 1M Miles of Plug-in Hybrid Electric Vehicle Testing

Green Car Congress

By evaluating how the vehicles are driven and how they are charged, the AVTA is able to demonstrate vehicle energy consumption results and potential electric grid impacts. The testing also demonstrates how environmental conditions, such as air temperature and human behavior, influence the performance of PHEV technologies. Earlier post.)

Plug-in 186
article thumbnail

Heating Buildings With Solar Energy Stored in Sand

Cars That Think

Their journey began with a question posed by its founders, Tommi Eronen and Markku Ylönen, when they were university classmates: “Is it possible to build an energy-self-sufficient and cost-effective hippie commune for engineers using only solar power?” Existing infrastructure meets these challenges in familiar ways.

Store 90
article thumbnail

NREL: battery second use offsets EV expense, improves grid stability; recommendations

Green Car Congress

Researchers at the US Department of Energy (DOE) National Renewable Energy Laboratory (NREL) are identifying battery second use (B2U) strategies capable of offsetting vehicle expenses while improving utility grid stability. In addition, degradation and related statistics from automotive service should be quantified and shared.

Grid 150