What does a Solar Photovoltaic Installer earn?

Federal figures put this role between $41,600 and $79,970 a year, with a national median of $53,140. The federal occupation for this role is Solar Photovoltaic Installers (SOC 47-2231), May 2025.

What credentials should a Solar Photovoltaic Installer have?

The credentials that command a premium in this seat are NABCEP (preferred). Requirements vary by state and by what the job actually involves, so treat these as what moves an offer rather than a legal minimum.

LED & SOLAR - ROLE PROFILE

Solar Photovoltaic Installer

Federal figures put this role between $41,600 and $79,970 a year, with a national median of $53,140.

The role

What the job actually is.

Installs commercial photovoltaic systems: racking and attachment to the roof or structure, module setting, DC wiring and combiners, inverters, and the labelling and rapid shutdown the code requires. Most of the risk is on a roof, and the roof warranty is somebody else's.

Pay

What this role pays.

We have not closed enough LED & solar searches to publish a band of our own for this seat, so the figures above are the federal 10th to 90th percentile spread rather than a My Trade Talent band. They are national and not adjusted for experience or region.

The federal occupation for this role is Solar Photovoltaic Installers (SOC 47-2231), May 2025. Nationally it reports a median of $53,140 , with the middle of the market between $41,600 and $79,970.

Where it pays most.

Solar Photovoltaic Installers across the metros we cover, May 2025. BLS publishes a median for 37 of them and withholds the rest, where the local sample was too small to be reliable.

Highest-paying metros - Solar Photovoltaic Installers
Metro	Median	Employed there
San Francisco	$72,150	710
San Jose	$71,630	280
New York	$70,130	2,190
Las Vegas	$67,810	60
Portland	$66,320	210
Seattle	$61,630	-
San Diego	$61,340	550
Riverside	$60,050	790
Indianapolis	$39,690	240
Baltimore	$45,220	490
Charlotte	$45,970	150

BLS Occupational Employment and Wage Statistics, May 2025. The last three rows are the lowest-paying metros in the same set. Headcount is metro-wide across every industry, not this trade alone.

Credentials

Credentials that move an offer.

NABCEP (preferred)

Licensing is a state question, not a national one. The LED & Solar hiring page carries the state-by-state position, and every market page names the authority for that state.

Screening

What separates a strong candidate.

Everyone who applies for this seat will claim the experience. These are the things that distinguish the people who have it, and the questions that find out.

What to look for

Knows the attachment detail and who holds the roof warranty
Describes rapid shutdown and labelling requirements as code, not paperwork
Fall protection stated as a working practice rather than a certificate

Questions that find out

How do you attach racking on a membrane roof without voiding the warranty? A strong answer Finds out who holds the roof warranty and what their approved attachment detail is before anything is fixed, and uses it - usually a manufacturer-supplied curb or a flashed penetration installed by a roofer approved by them, or a ballasted system where the roof and the structure allow. Gets the roofing manufacturer's written acceptance and often their inspection. Says that a correct-looking penetration by the wrong contractor still ends the warranty.
What does the code require for rapid shutdown and how do you verify it works? A strong answer Knows rapid shutdown limits the voltage within the array boundary and outside it within a set time after initiation, and that the current code requires module-level control rather than only shutting down at the array edge. Knows where the initiation device and the labelling have to be. Verifies by initiating it and measuring the voltage at the conductors after the required interval, rather than trusting the equipment to do what it claims.
A string is reading low at the combiner. How do you trace it? A strong answer Compares the string against its neighbours under the same conditions rather than against a datasheet, then halves it: measures open-circuit voltage along the string to find a missing module or a bad connection, and checks for a module that is shaded, soiled, cracked or has a failed bypass diode. Checks the connectors, which are the usual culprit. Knows a low voltage points at a module or connection and a low current at shading or soiling.
How do you verify the roof structure will take the array? A strong answer Does not assume. Knows the structural capacity is an engineer's decision, with the dead load of the array plus wind uplift and, where it applies, snow, and that a ballasted system is heavier than a penetrated one. Checks the structural letter or stamped drawings exist before mobilising, and raises anything on site that does not match - deteriorated deck, rusted purlins, a roof that has already been re-covered twice.
What is your approach to string sizing in cold weather? A strong answer Knows module voltage rises as temperature falls, so the string is sized on the record low temperature for the site rather than on standard conditions, and that a string sized for a mild day exceeds the inverter's maximum input voltage on the coldest morning of the year. Uses the module's temperature coefficient and the correct design temperature. Says this is the mistake that destroys inverters and voids warranties.
How do you handle a roof plane that is partially shaded? A strong answer Looks at what shades it and when, across the year rather than on the day they are standing there, and whether it can be removed. Designs around it: keeps shaded modules off strings with unshaded ones, or uses module-level electronics so one shaded module does not drag a string. Models the loss honestly and tells the customer before installing rather than explaining the production shortfall afterwards.
Walk me through your commissioning checks before energising. A strong answer Describes a sequence: mechanical complete and torque verified, polarity confirmed on every string before connecting anything, open-circuit voltage measured and compared string to string, insulation resistance tested, grounding and bonding continuity verified, rapid shutdown and labelling in place, then energise in order and check each string's current under load. Documents the readings as the baseline for future troubleshooting.
What do you do when the array layout does not match the plan set? A strong answer Stops and raises it rather than adjusting on the roof, because the plan set is what was permitted and what the inspector will check against. Finds out whether the difference is the roof, an obstruction nobody surveyed, or a setback requirement. Gets a revision from the designer and, where the permit requires it, from the authority. Knows an as-built that differs from the approved plans fails inspection and delays the interconnection.
How do you handle grounding and bonding on an array? A strong answer Bonds the modules and the racking as a continuous path using the listed methods for that racking - integrated bonding clips or washers used exactly as listed, not a substitute - and takes the equipment grounding conductor to the required point with the right size. Verifies continuity with a meter rather than assuming the rack is bonded through its clamps. Knows a bonding path through a painted or anodised surface is not a bonding path.
What is your approach to module layout around obstructions and setbacks? A strong answer Works from the approved plan and the local fire access requirements - ridge and perimeter setbacks and pathways - rather than filling the roof. Keeps clear of vents, curbs, skylights and anything that needs service, and allows for the shade they throw. Checks the setbacks with the authority where they are ambiguous. Says fire setbacks are the thing most often trimmed on site and most often caught at inspection.
How do you deal with a racking system you have not used before? A strong answer Reads the installation manual before starting rather than assuming it works like the last one, because the torque values, the bonding method and the attachment detail are specific to the listing. Builds a small section and checks it against the manual. Calls the manufacturer's technical line for anything ambiguous. Knows that deviating from the manual voids the listing and the structural certification, whatever the result looks like.
What is your process for torque and fastener verification? A strong answer Torques to the manufacturer's value with a calibrated wrench rather than by feel, marks what has been checked so the crew can see what is done, and has a second person verify a sample. Knows under-torqued clamps let modules move and over-torqued ones crack glass or strip rails. Records it as part of the commissioning package, because wind uplift failures come back to fastener torque.
How do you handle working on a roof in high wind? A strong answer Has a wind limit and stops at it rather than pressing on, because a module is a sail and will take a person off a roof. Secures every module and loose component rather than leaving anything on the roof, keeps the laydown low and strapped, and watches the forecast through the day. Says they have called a day for wind. Treats a module being carried in gusts as the hazard rather than the inconvenience.
What is your approach to DC wire management so nothing chafes? A strong answer Supports every conductor off the roof surface in listed clips or trays at the required intervals rather than letting it lie in the pan or hang in loops, keeps it out of standing water, and protects it where it crosses anything abrasive. Keeps connectors mated properly and of the same make. Knows that a chafed DC conductor is an arc fault and a roof fire, and that this is the most common long-term installation defect.
How do you deal with a module damaged during installation? A strong answer Takes it off the roof rather than installing it, however small the damage, because micro-cracked glass fails later as a hot spot and a possible arc source. Records it and reports it rather than hiding it in the middle of the array. Knows a damaged module also voids its own warranty and that nobody will find it until the string underperforms. Checks whether the damage points at a handling practice that will damage more.
What do you check before you call the array mechanically complete? A strong answer Walks every row: attachments flashed and sealed, torque verified and marked, bonding continuous, modules aligned and secure with no damage, wire management complete and off the roof, conduit supported, labelling in place, and the roof left clean with no fasteners or offcuts that will puncture the membrane. Photographs the attachments before anything is covered, and confirms the roofer has signed off their part.

The mistake this seat invites

Hiring residential installers for commercial work without checking the structural and electrical scale-up. The systems, the attachments and the inspection are different.

Where the role goes next

Installers move to lead and foreman, and the electrical side of the work opens licensure paths. Candidates ask this in the first conversation, and an employer who cannot answer it loses the people who had other options.

Interview kit for this role

All interview questions for this role in the question bank.
Printable interview scorecard built from these questions and signals.
The LED & Solar hiring kit - every role in the trade, with credentials and offer risks.
Offer calculator starting from this role's pay band.

The search

What the search actually takes.

We have not closed an LED & solar search in 2026 year to date, so we publish no timing figure of our own for this seat rather than borrow one. The Hiring Index shows the trades where we do.