Coda Energy Energy Analyst Interview: Rounds, Questions and Preparation

What the job involves

An Energy Analyst in EV and cleantech works with data on charging infrastructure, battery costs, and fleet operations to build models that guide investment and policy decisions. Day to day involves cleaning datasets, running techno-economic analyses, and preparing clear reports for internal teams or clients. At a fast-growing firm like Coda Energy, you might also support feasibility studies for new charging sites or help evaluate government incentives.

Role and technical knowledge

1. 1

   How would you calculate the total cost of ownership (TCO) for an electric bus compared to a diesel bus?

   Cover purchase price, fuel or electricity costs, maintenance, battery replacement, and government subsidies. Mention assumptions like daily km, efficiency, and resale value.

2. 2

   What are the key factors that determine the payback period for a public EV charging station?

   Discuss capital cost (charger, installation, grid connection), utilization rate, electricity tariff, service fee, and competition. Show awareness of Indian tariffs and land costs.

3. 3

   Explain the difference between AC and DC charging and when each is preferred.

   AC is slower and cheaper for home or destination charging; DC is fast and suited for highways or fleets. Mention cost, power levels (e.g., 3.3 kW vs 50 kW), and use cases.

4. 4

   How would you estimate the reduction in CO2 emissions from switching a company's fleet to EVs?

   Use grid emission factor, vehicle efficiency, annual km, and compare with diesel or petrol emissions. Mention that grid mix changes over time and can be a sensitivity.

Practical scenarios and data tasks

1. 5

   You are given a year of charging session data for 10 stations. How would you identify which stations are underperforming?

   Calculate utilization rate, revenue per session, and peak vs off-peak usage. Compare against location type and nearby competition. Suggest operational fixes like pricing or marketing.

2. 6

   A client wants to set up 50 charging points across a city. What data would you request and how would you prioritize locations?

   Request traffic counts, population density, existing chargers, grid capacity, and land availability. Prioritize based on expected demand, cost, and grid readiness.

3. 7

   How would you build a simple model in Excel to forecast battery pack prices for the next 5 years?

   Use historical price decline rates, learning curves, and assumptions on raw material costs and production scale. Show sensitivity analysis and clearly state limitations.

4. 8

   You notice a sudden drop in charging revenue at one site. What could be the reasons and how would you investigate?

   Check for technical faults, price changes, new competitors, seasonal effects, or data errors. Suggest a step-by-step diagnostic using logs, customer feedback, and site visits.

Behavioural and teamwork

1. 9

   Tell me about a time you worked on a team project where data was messy or incomplete. How did you handle it?

   Show a structured approach: cleaning, documenting assumptions, and communicating gaps. Highlight collaboration and a final recommendation despite uncertainty.

2. 10

   Describe a situation where you had to explain a technical concept to someone without a technical background.

   Pick a real example from a project or presentation. Emphasize clarity, use of analogies, and checking for understanding.

3. 11

   Give an example of a time you had to meet a tight deadline with limited resources.

   Focus on prioritization, time management, and asking for help when needed. Mention the outcome and what you learned.

Motivation and HR

1. 12

   Why do you want to work in the EV and cleantech sector, and why an analyst role at a smaller or fast-growing company?

   Connect personal interest to sector growth in India. Mention desire for broad exposure, impact, and learning in a dynamic environment.

2. 13

   Where do you see yourself in 3 to 5 years in this field?

   Show ambition to deepen technical skills, take on more project responsibility, and contribute to India's energy transition. Avoid vague answers.

3. 14

   What do you know about the current challenges in India's EV charging ecosystem?

   Mention high upfront costs, low utilization, grid reliability, land acquisition, and interoperability. Show awareness of government schemes like FAME and state policies.

4. 15

   How do you handle feedback or criticism on your analysis?

   Demonstrate openness, willingness to revise, and a focus on accuracy. Give a brief example of improving work after feedback.