Chargepoint Data Analysis Assignment

Goal

Determine the time spend in the four different energetic states of a vehicle during a day and calculate the efficiency (km/soc%).

Getting Started

First of all, fork the repository at:

https://github.com/viriciti/data-analysis-assignment

Then open up your terminal and clone the forked repository

^{Replace [YOUR_USERNAME] with your name}

git clone https://github.com/[YOUR_USERNAME]/data-analysis-assignment.git

Enter the directory

cd data-analysis-assignment

The Assignment

The Data

In the directory data you will find a comma seperated file containing all data you need for this assignment. The data originates from an electric bus recorded during one day. It contains the following columns:

• datetime
• timestamp [ms]
• current [A]
• voltage [V]
• soc [%]
• distance [km]
• speed [km/h]

The Task

Your task is to determine how long the vehicle spends in one of the four energetic states. These states are consuming energy, recovering energy, idling and charging. Calculate for each state how much energy (kWh) is involved.

Finally, compute the battery efficiency, which is defined as (consumed energy) / (percentage soc).

Show us how you came to the different states and the efficiency and support it by relevant plots. You may use the tools of your choice (although we like python ;))

Questions

If you have an questions about the assignment of project setup, feel free to contact us in the usual way.

Good luck with the assignment.