Drive Electric Earth Month

Drive Electric Earth Month
EVs: The Ups of Down
Courtenay, BC
Apr 22, 2021

Note: This is an online only event with no physical location.
Day: Thursday, April 22, 2021 NOTE: this event has already happened, find current-year events on the Attend page.
Time: 5:00 - 6:00 pm PDT
Audience: Courtenay, BC, Local Area
Host: Randy Chatterjee
Recording: view the recorded presentation.
Topics: Cost of Ownership
Driving Experience
Environmental Benefits
Health Benefits
Contact the event organizers, which took place in 2021.

Event Report

We did it: another successful EV event despite CoVid restrictions.  

This time we organized a local car rally with 7 people in a completely distanced manner (our own cars) and then used data and footage from this rally to run a global Zoom event on Earth Day to share the learnings more broadly.

Much to our surprise, we attracted an international audience, and not just from North America but also including Germany.

The event I think successfully explained how to run a local car rally to evaluate the regenerative braking efficiency of any EV (or Plug-In Hybrid).  This is an enormously powerful and easy way to demonstrate one of the best reasons to own an EV, and the reason they are such an efficient means of getting around and transporting things. 

The video of our Zoom meeting on Drive Electric Earth Day is posted here:

The Powerpoint (in PDF, no movies) used in the Zoom event is available here:

If you have lots of bandwidth, the Keynote version of the Zoom presentation is here:

A PDF version of the spreadsheet results for many different EVs over 3 separate event dates is here:

An Excel version of this spreadsheet is here:

If you are an Apple Numbers user, a Numbers version is here:

Thanks to all who participated and I hope this starts or continues a conversation on how EVs are changing our lives.

Randy Chatterjee, Co-Founder of the Comox Valley Electric Vehicle Association

Event Description


A popular local EV rally involves an EV hill climb up a local ski mountain with EV owners each driving their own car while measuring and then sharing their energy usage.  This event will be an on-line "Zoom" meetup that will explain just such a rally.

The real event is a four-stage rally, and data at the end of each stage are added to a spreadsheet that calculates the efficiency of each car in recovering the potential energy gained from the altitude change.  How this is done may not be intuitive, but we will explain the logic, the formulae, and the results for several different EVs.  We have photos to share, plus the master spreadsheet, and we hope to teach everyone how to organize their own EV efficiency rally.  

It is also important to note that our findings apply equally to braking on flat ground, because regeneration can recapture kinetic as well as potential energy.  High school physics proves its worth!

We will also unveil an exciting finding for the bravest EV drivers among us.  Join us to find out what that terrifying eureka moment was all about.

Registered Attendees

There are currently 22 attendees registered.

Owners of These Vehicles Have Registered To Attend

Vehicle Registered
Tesla Model 3 3
Nissan Leaf (2018+) 2
Chevrolet Bolt 1
Hyundai KONA Electric 1
Kia Soul EV 1
Mitsubishi Outlander PHEV 1
Nissan Leaf (2011-2017) 1
Smart fortwo electric drive 1
Tesla Model S 1
Zero Motorcycle 1
10 Models 13

Registered attendees report 213,777 electric miles driven.

Presented By

Plugin America logo
Electric Vehicle Association logo
Sierra Club logo
EVHybridNoire logo
Drive Electric USA logo

Gold Level Sponsor

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Bronze Level Sponsor

All DEEM 2025 sponsors support Plug In America's coordination of Drive Electric Earth Month.

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