Electric Trucks and Grid Stability by Sameer

Sameer Bajaj

1. Electric Trucks
and Grid Stability
Sameer Bajaj for SMERC

2. Understanding the Problem
As we transition to greater use of renewable energy and see broader adoption of
high-demand appliances, our power grid becomes increasingly vulnerable.
•High renewable energy share  Low grid inertia
•
Low grid inertia  high grid vulnerability
•High vulnerability + large demand  Total grid failure

3. How can we Mitigate This?
1.Analyzing our grid’s vulnerabilities
2.Analyzing our grid’s largest load cases
3.Exploring smart energy storage systems
Energy Supply for California (03-29-21)
Aggregate Power Draw for EV Truck FleetV2G Diagram

4. Analyze Grid Vulnerabilities
Energy Supply for
California (03-29-21)

5. Grid Inertia
Analysis
•Used EIA APIs to aggregate grid data
•Developed custom Python tools to identify
hour with highest renewable share and
return generation shares
•Calculated total system inertia using
generation mix and H values
Inertia Plot for 03-29-2021
Sample Code Output

6. Analyze Large Load Cases
Truck Simulation Plot

7. Electric Truck
Simulation
•Builds on NREL code
•Allows for simulation of ports with custom
type ratios and charging methods
•Scales data to fit maximum system wattage
if desired
5:12:7 Aggregate Power Draw Plot
5:12:7 Power Draw Multi-Plot

8. 2028 Olympics
•Ongoing research dealing in predicting
Olympics power draw
•Venue use based on 2012 London
Olympics data
•Transportation consumption based on
seating capacity and athlete travel
Transportation Power Consumption by Zhaoyi
Stadium Energy Use by Sameer

9. Exploring Energy Storage
Systems

10. Vehicle to Grid
(V2G)
•Allows for use of EVs as portable batteries
•Uses inverters to convert DC to AC
•Low grid inertia
•Currently working on installing a prototype
V2G charger in a UCLA parking lot
List of Potential V2G Chargers
Potential Location of V2G Charger

11. Thank you
Sameer Bajaj
949-491-4585
[email protected]
www.sameerbajaj.me