3-Step Interview Guide for LED & Solar
A practical framework for interviewing solar installation and LED retrofit candidates. Three structured steps to evaluate technical fit, motivational fit, and culture fit - without wasting your time or theirs.
What's inside
- NABCEP-verification questions that separate real certified installers from resume claims
- Process- and code-specific technical questions for solar and LED retrofit electrical work
- Motivational-fit and culture-fit questions with what to listen for
- A red-flags checklist for the interview room
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Download 3-Step Interview Guide for LED & SolarWho you are actually interviewing.
The questions in the guide come out of our own screens. The facts below are public, and they are the reason the questions are shaped the way they are.
There is no federal occupation code for LED & solar on its own. Solar Photovoltaic Installers is the closest published occupation, and it is what every figure in this section describes.
Why there is no age figure for this trade.
The Bureau of Labor Statistics publishes no median age for solar photovoltaic installers. At roughly 22,000 workers nationally, solar PV installers fall below the BLS publication threshold for a median age. Much of the commercial crew is drawn from the licensed electrician pool instead (39.6).
How wide "market rate" really is.
One in ten solar photovoltaic installers earns under $41,600 a year and one in ten earns over $79,970, around a median of $53,140. The top of that band is 1.9 times the bottom, for the same federal job title. An interview is what tells you which end of it the person in front of you belongs at - and a bad one is how employers end up paying the top of the band for the bottom of it.
The credential question, state by state.
We have confirmed a state-level licensing requirement touching LED & solar in 39 states, each one from an official agency source. Three of them, as examples: AL — The state board issues electrical contractor and journeyman electrician licenses. Its site does not list a solar-specific license.; AR — The board licenses master, journeyman, residential, air conditioning and industrial maintenance electricians and sets standards for electrical work statewide. It lists no solar-specific license.; AZ — Electrical contracting is licensed under the C-11 (commercial), R-11 (residential) and CR-11 (dual) classifications. The classifications labeled 'including solar' are plumbing, boiler and HVAC trades, and the list has no separate solar PV classification.. Rules change; every entry on our state pages carries the agency and the source it came from, last checked 2026-09-22.
Sources: U.S. Bureau of Labor Statistics, Current Population Survey, Table 11b (2025 annual averages); Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025.
