See what we look for

Every panel tells a story

Hover or tap a highlighted panel to see the problem our 6 point check is built to catch.

Drone view of ground-mount solar rows, with highlighted panels to explore | Premier Solar Service, serving Central Valley, CA
Heavily soiled ground-mount solar panels, close-up (candidate photo)
Real photo · candidate
Heavily soiled
Dust and droppings blocking sunlight.
Tall weeds growing in front of a ground-mount solar row (candidate photo)
Real photo · candidate
Weeds closing in
Vegetation almost shading the front edge.
ILLUSTRATION
Illustration
Cracked panel
Cracked glass lets moisture in.
Thermal image: one cell much hotter than the rest of the panel
Real thermal · not field-confirmed
Bad cell
A single cell much hotter than the rest of the panel, a hot spot likely from a cracked cell.
Thermal image: one module block hotter than its neighbors (candidate)
Real thermal · not field-confirmed
Bad panel
One module block running much hotter than its neighbors.
Thermal image: a row of panels running uniformly warmer than its neighbors
OFFLINE
Real thermal · not field-confirmed
Offline panel
A row of panels running uniformly warmer than its neighbors, a sign of a string that's offline.
Thermal image: checkerboard of hot cells across neighboring panels
Real thermal · not field-confirmed
Reverse polarity
A checkerboard of hot cells across neighboring panels, a pattern consistent with reverse polarity.

Examples for illustration of common problems. Thermal stills from Kevin's drone; patterns described as "consistent with" or "likely", not field-confirmed diagnoses.

Solar Panel Cleaning

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Professional Solar Panel Cleaning from small residential cleanings to large scale utility and commercial cleanings.

Bird & Pest Abatement

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Professional Installation of pest barriers and deterrents such as bird mesh and pigeon removal. Industry Leading Warranty!

6 Point Check Inspection

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✔ Wiring Inspection ✔ Roof Fixings Check ✔ Thermal Imaging (coming soon) ✔ Pest Damage ✔ Broken Glass ✔ Frame/Mount Damage

Management for Faster ROI

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Dirty panels can decrease production efficiency, we can help your system have a longer life and have a quicker return on investment.

Residential & Commercial Work

From home rooftops to commercial roofs and arrays across Fresno, Clovis, Tracy and Manteca.

Residential tile-roof solar array under a clear blue sky | Premier Solar Service, serving Fresno, CA
Residential
Blue rotary brush on a water-fed pole cleaning a residential array | Premier Solar Service, serving Fresno, CA
Residential
Residential roof solar array after cleaning | Premier Solar Service, serving Central Valley, CA
Residential
Roller brush cleaning panels on a commercial roof | Premier Solar Service, serving Tracy, CA
Commercial roof
Clean commercial solar array framed by palm trees | Premier Solar Service, serving Central Valley, CA
Commercial
Technician cleaning panels with a water-fed pole brush | Premier Solar Service, serving Fresno, CA
Commercial

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Location & Hours

Fresno CA
Clovis CA
Tracy CA
Manteca CA
and commercial projects across the Central Valley

(209) 800-3600

Monday 7:30 am – 6:30 pm
Tuesday 7:30 am – 6:30 pm
Wednesday 7:30 am – 6:30 pm
Thursday 7:30 am – 6:30 pm
Friday 7:30 am – 6:30 pm

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Solar panel cleaning, bird abatement and inspections. Fresno • Clovis • Tracy • Manteca and the Central Valley.

(209) 800-3600

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