EV, cleantech and mobility
Cleantech Solar India Energy Analyst Interview: Rounds, Questions and Preparation
For Energy Analyst roles at companies like Cleantech Solar India
What the job involves
An Energy Analyst in EV, cleantech, and mobility supports the evaluation, modelling, and reporting of clean energy projects such as solar, EV charging, and energy storage. Day to day work includes data analysis, financial modelling, feasibility studies, and preparing client or investor presentations. Freshers typically assist senior analysts with research, Excel models, and site or market data.
Role and Technical Knowledge
- 1
What is LCOE and why is it important for solar projects?
Define levelised cost of energy, explain it as lifetime cost divided by lifetime generation, and mention its use in comparing energy sources and setting tariffs.
- 2
How would you calculate the payback period for a rooftop solar installation?
Outline capex, annual savings from reduced grid bill or generation revenue, and simple payback as capex divided by annual savings, noting maintenance and degradation.
- 3
What are the key components of an EV charging station and how do they affect energy demand?
Mention charger types (AC slow, DC fast), transformer, cabling, and load management; discuss peak demand and possible solar or storage integration.
- 4
Explain the difference between net metering and gross metering in Indian solar policy.
Net metering credits only excess generation at retail tariff, while gross metering sells all generation at a feed-in tariff; mention state variations.
Practical Scenarios and Case Questions
- 5
You are given a year of solar generation data and asked to estimate the capacity factor. How would you do it?
Describe using total kWh generated divided by (rated capacity times hours in year), and discuss data cleaning for outages or shading.
- 6
A client wants to install solar for their factory but has limited roof area. How would you assess feasibility?
Cover load profile, roof area and orientation, shading, structural strength, and compare generation against consumption to size the system.
- 7
How would you evaluate whether a fleet of electric buses is cheaper than diesel buses over 10 years?
Compare upfront cost, fuel or electricity cost, maintenance, battery replacement, and incentives; use total cost of ownership and sensitivity analysis.
- 8
Your financial model shows a negative NPV for a solar project. What could you change to improve it?
Suggest renegotiating tariff, reducing capex, improving financing terms, using subsidies, or increasing generation through better design or tracking.
Behavioural and Situational Questions
- 9
Tell me about a time you had to analyse a large dataset for a college project. How did you ensure accuracy?
Use STAR format, highlight Excel or Python skills, and mention cross-checking with formulas or a second method.
- 10
Describe a situation where you had to explain a technical concept to a non-technical person.
Show ability to simplify without losing accuracy, use analogies, and check understanding; relate to client or team presentations.
- 11
Why do you want to work in cleantech and mobility rather than a traditional energy company?
Connect personal interest in sustainability, India's renewable targets, and the growth of EV and solar; mention specific projects or trends you follow.
- 12
How would you handle a tight deadline when your senior asks for a report but you are missing key data?
Demonstrate prioritisation, proactive communication, using assumptions with clear caveats, and delivering a draft on time.
HR and Company Fit
- 13
What do you know about Cleantech Solar India and its business model?
Mention it is a solar developer for commercial and industrial clients, often using capex or opex models, and focus on rooftop and open access projects.
- 14
Where do you see yourself in three years in this role?
Show ambition to grow into a senior analyst or project manager, deepening expertise in solar and EV, and contributing to larger deals.
- 15
Are you comfortable with travel to project sites or client locations?
Be honest, express willingness to travel for site visits or client meetings, and mention any relevant field experience.
- 16
What are your salary expectations for this fresher role?
Research typical analyst salaries in Indian cleantech, give a reasonable range, and emphasise learning and growth over exact figure.
Ready to try it for real?
Take a timed test or talk through a mock interview for this role, then see your scores.
This is practice material for Energy Analyst roles, written with AI. It is not a list of questions Cleantech Solar India or any other company has asked.