Solar Installation Crew Daily Checklist

A residential solar installation is three trades stacked on one another. It is roof work, with all of roofing's fall exposure. It is electrical work, with a DC circuit that is energized any time the sun is on the modules. And it is a permitted, inspected installation where a single missed label costs a return visit and a rescheduled inspection.

Crews that install fast and pass inspection first time are not working faster than anyone else. They are working in a fixed order, with the checks built into the order.

The Day Before

Confirm the job address, scope, and system design
Confirm the permit is issued and on site
Confirm the approved plan set and any engineering letters
Confirm module, inverter, and racking quantities against the design
Confirm all balance-of-system components are staged
Confirm the crew assignment and start time
Confirm the homeowner is notified and access is arranged
Check the forecast for wind, heat, and storms
Confirm the utility interconnection status

Counting the components the night before is what prevents the mid-morning supply run. A missing set of end clamps stops a crew as effectively as a missing inverter.

Equipment and Safety Gear

Confirm harnesses, lanyards, and anchors for every crew member
Inspect each harness for damage before it is worn
Inspect ladders for damage and confirm locks function
Confirm the ladder stabilizer and tie-off materials
Confirm insulated tools rated for the DC voltage
Confirm electrical PPE: arc-rated clothing, gloves, face protection
Confirm meters and testers are functional and calibrated
Confirm the torque wrench is calibrated
Confirm fire extinguisher and first aid kit on the truck
Confirm water, shade, and heat management supplies

A calibrated torque wrench is what makes racking warranties valid. Fasteners tightened by feel are the most common finding in a warranty inspection.

Site Arrival

Introduce the crew to the homeowner and confirm the plan for the day
Confirm access to the roof, attic, main panel, and meter
Identify overhead power lines and confirm clearance
Identify ground hazards and set the work zone
Protect landscaping, driveway, and interior floors
Confirm the location of pets and children
Confirm parking that does not block the homeowner or neighbors
Photograph the pre-existing condition of roof, walls, and panel area

The pre-existing condition photos protect the company from the roof leak that predates the install and the driveway crack that was already there.

Fall Protection

Install roof anchors into structural members
Confirm anchors are rated and correctly fastened
Confirm every worker on the roof is tied off before working
Confirm lanyard length prevents contact with a lower level
Confirm the ladder is tied off and extends three feet above the eave
Confirm the rescue plan for a suspended worker

Roof Layout and Mounting

Locate and mark rafters with a reliable method
Confirm the layout against the approved plan
Confirm setbacks and fire pathways per code
Drill pilot holes at the marked rafter centers
Apply flashing and sealant per the manufacturer's instructions
Install mounts and torque to specification
Confirm each mount hits structure, not sheathing alone
Install rails and confirm they are level and square
Confirm rail splices and cantilever limits per the engineering

Every penetration is flashed per the roofing manufacturer's method, not per habit. Leaks show up months later and they are always attributed to the solar company.

Electrical: DC Side

Confirm modules match the specified model and wattage
Install module-level electronics per the design
Confirm string configuration matches the plan
Verify polarity on every string before connection
Confirm connectors are the same manufacturer and fully seated
Confirm wire management keeps conductors off the roof surface
Confirm no conductor is subject to abrasion or sunlight degradation
Measure and record open circuit voltage per string
Confirm grounding and bonding continuity

Mismatched connectors from different manufacturers are a listed-product violation and a fire risk. They physically mate, which is exactly why crews get away with it until an inspector notices.

Electrical: AC Side

Confirm the main panel busbar and breaker rating support the interconnection
Install the inverter per clearance and mounting requirements
Install the AC disconnect at the required location
Confirm conductor sizing and overcurrent protection against the plan
Confirm conduit runs are supported and sealed
Confirm the rapid shutdown device and initiator are installed
Torque every termination to specification
Confirm the grounding electrode conductor and bonding

Labeling

Labeling is where more inspections fail than any other single category.

Label the AC and DC disconnects
Label the inverter and rapid shutdown initiator
Label the main service panel with the solar interconnection
Apply the rapid shutdown placard at the service entrance
Label all conduit runs carrying DC conductors
Apply the system rating and specification labels
Confirm labels are engraved or code-compliant material, not printed paper
Confirm every label matches the as-built configuration

Labels are checked against the as-built, not the design. A string count that changed during install and a label that did not is an automatic correction notice.

Commissioning

Confirm all connections are torqued and documented
Confirm the inverter firmware is current
Energize the system in the correct sequence
Confirm the inverter reports normal operation
Measure and record actual production
Confirm monitoring is online and reporting
Test the rapid shutdown function
Record all commissioning values in the job file

Homeowner Handoff

Walk the homeowner through the system components
Show the location of every disconnect
Demonstrate the shutdown procedure
Set up and demonstrate the monitoring app
Explain expected production and seasonal variation
Explain the warranty terms for equipment and workmanship
Provide the documentation package
Explain the inspection and utility permission-to-operate timeline
Confirm the homeowner knows the system is not producing until PTO

The permission-to-operate explanation prevents the most common post-install support call: a homeowner watching a system sit idle and assuming it is broken.

Site Cleanup

Remove all packaging, cardboard, and pallets
Sweep the roof and gutters of debris and fasteners
Magnet sweep the driveway, walkways, and lawn
Remove interior protection and clean any work areas
Confirm the attic is left as found with insulation replaced
Photograph the completed installation from multiple angles
Confirm the homeowner is satisfied with site condition

Inspection Preparation

Confirm the as-built matches the permitted plan or a revision is filed
Confirm all labels are installed
Confirm the placards are legible from the required distance
Confirm access to all equipment for the inspector
Confirm the plan set and permit are on site
Confirm someone knowledgeable will meet the inspector

How MyTeamTasks Helps

A solar company running four crews cannot verify from the office that every torque spec was hit, every label was applied, or every string voltage was recorded before the truck left. A shared task system holds the install checklist per job, requires photo proof at flashing, labeling, and commissioning, and records the measured values at the moment they are taken. When an inspector writes a correction, the office can see exactly which step was marked complete and by whom, which is how a recurring failure gets fixed rather than repeated.