01 / INSPECTION
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Routine Site Inspections
Visual inspection of modules, racking, conductors, equipment enclosures, fencing, access and site conditions.
Operations & Maintenance
Keep solar assets operating at their best.
Field-focused preventive maintenance, troubleshooting, site inspections and corrective work for commercial, community solar and utility-scale PV facilities.
Preventive CareScheduled inspection and service
Corrective WorkTroubleshooting and repairs
Site ConditionDocumentation and inspection
Owner ReportingMaintenance records and findings
Long-Term Site Stewardship
Construction expertise carried into operations.
The same installation knowledge that drives CNR’s field execution informs our maintenance approach. We focus on accessible, practical corrective action, organized inspection programs and thorough documentation for asset owners.
✓Preventive maintenance inspections and electrical BOS reviews
✓Inverter, combiner, wiring, grounding and equipment-condition checks
✓Troubleshooting and corrective maintenance planning
✓Field support for warranty investigations, punchlists and replacements
FIELD-FOCUSED SOLAR O&M
O&M Service Categories
Structured programs for operating PV assets.
Service plans can be scoped by site size, equipment, owner requirements and desired inspection cadence.
02 / ELECTRICAL
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Electrical Maintenance
DC and AC BOS checks, terminations, enclosure inspections and troubleshooting consistent with equipment requirements.
03 / DIAGNOSTICS
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Fault Investigation
Targeted investigation of outage events, underperforming strings, equipment defects and conditions identified by owner monitoring.
04 / AERIAL
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Thermal & Visual Surveys
Drone-enabled site inspections and thermal anomaly screening with findings organized for field verification.
05 / SERVICE
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Corrective Repairs
Defined repair scope, equipment replacement support and commissioning-related checks following maintenance.
06 / DOCUMENTATION
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Reporting & Closeout
Inspection photos, discrepancy logs, maintenance summaries and follow-up recommendations for owner records.
O&M + Aerial Diagnostics
Investigate performance issues from the air. Verify them on the ground.
CNR combines drone inspections with field electrical experience and documented corrective-action coordination.
CONFIRMED ELECTRICAL FINDING
Two PV modules excluded from a string
A short thermal flight found two anomalous modules; the drone guided an electrician to each, where improper module-lead connections were confirmed.
CONFIRMED SITE-CONDITION FINDING
Tree shading reduced inverter performance
A February flyover supported an EPC investigation, leading to solar-access review and selective removal of trees causing shade.
A Coordinated Program
From site inspection to documented resolution.
01
Review
Confirm facility equipment, maintenance history and owner requirements.
02
Inspect
Complete planned field, aerial or diagnostic assessments.
03
Prioritize
Identify safety, reliability and performance-related concerns.
04
Correct
Execute approved repair and maintenance work.
05
Document
Supply findings, records and recommended next actions.
Need O&M support for a solar portfolio?
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