Does an electric car "emit" more CO₂ than a gasoline car?
Does an electric car "emit" more CO₂ than a gasoline car? By how much does a (plug in) hybrid emit less than a conventional car? These are questions that I often get from students and public alike.
In the first lecture of my course "SET3100 EV and Charging technology", I use this fantastic tool developed by the Alternate Fuel Data Center (AFDC) from the U.S. Department of Energy (DOE) to estimate the annual Well-to-Wheel emissions of EVs
EV Emission tool: https://afdc.energy.gov/vehicles/electric_emissions.html
Do give it a try! Choose the states of West Virginia, Florida, Washington and then my favorite Vermont to compare the numbers!
And for the Nerds
- Click on the "Assumptions" link to learn how this model is built, the data behind it and what are the assumptions.
- If you are interested in the comprehensive lifecycle emissions analysis (incl. emissions due to vehicle and battery manufacturing and recycling), look at this report from the The International Council on Clean Transportation by Georg Bieker, "A global comparison of the life-cycle GHG emissions of combustion engine and electric passenger cars"
8 Emerging technology trends in Vehicle-to-X (V2X) technology
In my invited talk at the Battery on Wheels Congress in Breda, Netherlands, I discussed 8 Emerging technology trends in Vehicle-to-X (V2X) technology:
1. Light and compact offboard V2G chargers (20kW, 50kg now Vs 10kW, 250kg in the past) - use of high frequency isolation, SiC devices and soft switching (e.g., PRE Power Developers) Vs use of conventional 50Hz low frequency isolation, IGBTs, hard switching
2. Direct DC solar charging & V2G using the car battery as a storage for solar - Net zero well-to-wheel emissions, improved efficiency, one inverter for solar and EV (See https://lnkd.in/e58ndSCS, VenemaTech)
3. V2G with onboard solar (e.g. Sono Motors with 1kW PV and 11kW V2G onboard charger)
4. Emergence of Onboard V2G chargers with ISO #15118 (e.g., Utrecht - we drive solar using Renault#Zoe)
5. Standalone V2X: Vehicle to load (V2L) including Vehicle to Vehicle (V2V), typically 3.7kW (e.g., Hyundai
Ioniq5, Ford Motor Company F150 Lightning , Sono Motors); Vehicle to Home/Building (V2H or V2B) (e.g., Ford Motor Company
F150 Lightning with 9.6kW V2H with Delta converter + Ford charge Pro 80)
6. Vehicle to X combined with solar PV + Battery – Excellent solution for energy and mobility transition in places with limited/no grid connection
7. V2G with Autonomous vehicles – A game-changing solution with mobile and flexible battery on wheels (e,g, grid services like congestion management)
8. Limiting battery degradation due to V2X – Improved thermal management, smart charging algorithms, online SoH estimation, digital twin
The promise of hybrid EVs in cutting short-term carbon emissions
Read the full artcile at: https://www.thehindu.com/sci-tech/energy-and-environment/the-promise-of-hybrid-evs-in-cutting-short-term-carbon-emissions/article67142001.ece
