Interview scorecard template

Energy Storage Specialist interview scorecard

Evaluate Energy Storage Specialist candidates across 4 weighted areas: technical depth, work that shipped, diagnosis under uncertainty, and working across the org. Technical depth leads at 35%, so probe storage chemistry, inverter and grid interface, degradation, and the safety standards the site must meet. Use the rubric to compare role-specific evidence consistently.

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engineering applied scienceenergy storagegrid scale batteriespower systemsrenewables
TL;DR
For technical depth, look for evidence the candidate strong on storage chemistry and grid interface, and precise on the fire and electrical standards that apply. For work that shipped, look for evidence the candidate names commissioned installations with cycling, availability, or revenue figures they were responsible for. Apply the written 1–5 anchors to every answer, record the evidence behind each rating, and use the factor weights to reach a consistent overall assessment.
Complete evaluation framework

What to assess and how to score it

Review the evidence signals before interviewing. Then use the anchored descriptions—not instinct alone—to choose the score that best matches each answer.

01
Evaluation factor

Technical depth

35% weight

Probe storage chemistry, inverter and grid interface, degradation, and the safety standards the site must meet.

Evidence to listen for

  • Explains the physics or mechanism behind their work, not just the tooling
  • Names the standards, tolerances, and constraints they designed against
  • Can defend a design decision under follow-up questions
  • Distinguishes what they personally engineered from what the team delivered

Five-point scoring guide

1
Poor

Cannot explain the fundamentals of their own stated specialism.

2
Needs Improvement

Knows the vocabulary but not the underlying mechanism; struggles under follow-ups.

3
Satisfactory

Solid working knowledge for the role; depth thins out on edge cases.

4
Very Good

Strong command of the domain; explains trade-offs and defends decisions well.

5
Excellent

Strong on storage chemistry and grid interface, and precise on the fire and electrical standards that apply.

02
Evaluation factor

Work that shipped

30% weight

Look for installations that were commissioned and are cycling, with revenue or performance figures.

Evidence to listen for

  • Names specific programmes, parts, or systems that reached production or field use
  • States their own scope inside the project
  • Can give measured outcomes: yield, cycle time, cost, failure rate
  • Explains what went wrong and what they changed

Five-point scoring guide

1
Poor

No delivered work; experience is coursework, lab-only, or purely observational.

2
Needs Improvement

Contributed to projects but cannot say what shipped or what their part was.

3
Satisfactory

Has delivered real work; outcomes described without numbers.

4
Very Good

Names shipped work and their scope, with some measured results.

5
Excellent

Names commissioned installations with cycling, availability, or revenue figures they were responsible for.

03
Evaluation factor

Diagnosis under uncertainty

20% weight

Test how they diagnose an installation underperforming its guarantee across cells, inverter, and dispatch strategy.

Evidence to listen for

  • Describes a real failure they chased to root cause
  • Shows a method: isolate variables, reproduce, measure, eliminate
  • Distinguishes correlation from cause
  • Says what they ruled out and why, not only what the answer turned out to be

Five-point scoring guide

1
Poor

No diagnostic method; guesses or escalates immediately.

2
Needs Improvement

Trial and error with no structure; cannot explain how they narrowed the cause.

3
Satisfactory

Reasonable method on familiar problems; less structured on novel ones.

4
Very Good

Clear systematic approach with a real root-cause story.

5
Excellent

Separates cell degradation, inverter behaviour, and dispatch strategy when an installation misses guarantee.

04
Evaluation factor

Working across the org

15% weight

Check how they work with grid operators, fire authorities, and asset owners with competing priorities.

Evidence to listen for

  • Explains technical constraints to non-technical stakeholders without condescension
  • Has negotiated scope, cost, or timeline with manufacturing, product, or suppliers
  • Documents decisions so others can act on them
  • Takes review feedback without defensiveness

Five-point scoring guide

1
Poor

Cannot communicate outside their specialism; dismissive of other functions.

2
Needs Improvement

Communication gaps cause rework; avoids stakeholder contact.

3
Satisfactory

Works adequately with other teams; documentation is thin.

4
Very Good

Communicates clearly across functions; reliable collaborator.

5
Excellent

Handles grid operators, fire authorities, and owners together, with commitments documented clearly.

Evidence-led prompts

Interview questions for a Energy Storage Specialist

Use these prompts to surface evidence for the weighted factors above and compare candidates against the same role-specific criteria.

  1. 01

    Which energy storage technologies have you actually worked with, and what pushed you toward one chemistry over another on a specific project?

  2. 02

    Walk me through your experience with grid-tied versus off-grid storage systems and how the interconnection requirements differed.

  3. 03

    Tell me about your hands-on experience with battery management systems: which vendors, and what did you use the data for?

  4. 04

    What safety considerations drive your design decisions, and how do you handle NFPA 855 and UL 9540A requirements on a site?

  5. 05

    Tell me about the most challenging energy storage project you worked on and how you got it across the commissioning line.

See the complete Energy Storage Specialist question set
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