Field Services · Solar O&M · EV Infrastructure

Services Built For Asset Performance.

From rapid corrective response to annual PM programs and full system replacement — ETS delivers technically capable field services that protect energy revenue and support portfolio performance goals.

Request Field Support View Project Work

Corrective Maintenance Preventative Maintenance Full System R&R Inverter Replacement EV Charging O&M System Diagnostics IV Curve Tracing Thermal Imaging Asset Management Support Multi-State Deployment Corrective Maintenance Preventative Maintenance Full System R&R Inverter Replacement EV Charging O&M System Diagnostics IV Curve Tracing Thermal Imaging Asset Management Support Multi-State Deployment

ETS technician performing electrical diagnostics at solar array junction box

Solar O&M

Corrective Maintenance

When your asset goes down, every hour counts. ETS responds same-day to corrective calls with boots on the ground within 1-3 days across California and the Western U.S. We diagnose fast, repair right, and document everything — so your asset is back online and your reporting is clean.

Same-Day Response Corrective calls answered same-day. Mobilization within 1-3 days in California. Out-of-state timelines coordinated on call.

Root-Cause Diagnosis Full electrical diagnostics — inverter faults, string-level issues, combiner box failures, wiring faults, and performance degradation root-cause analysis.

Field Reporting Detailed corrective reports with findings, actions taken, and recommendations — formatted to your standards or delivered in your reporting platform.

Asset Manager Aligned Documentation and communication structured around portfolio KPIs, downtime tracking, and asset manager reporting requirements.

Solar Commercial Utility-Scale Western U.S.

Solar O&M

Preventative Maintenance

Proactive maintenance is how you protect long-term asset value and avoid costly corrective events. ETS delivers structured annual PM programs for commercial and utility-scale systems — sized from sub-500kW to 2MW+ — with comprehensive inspection scopes, documented findings, and reporting that feeds your asset management workflows.

Annual PM Programs Recurring annual contracts available for single sites and multi-site portfolios. Per-visit scheduling also available. Scope and frequency structured to client requirements.

Full PM Scope Visual inspection · Torque checks & marks · IV curve tracing · Thermal imaging · Inverter inspection & maintenance · String-level performance verification · Safety checks.

Reporting & Documentation Structured PM reports with photo documentation, findings, and recommended actions. Delivered to your standards — including completion in your reporting platform or app.

Target System Size Primary focus on 500kW–2MW commercial and utility-scale assets. Smaller systems considered — contact us to discuss scope.

Annual Contracts IV Curve Thermal Imaging 500kW–2MW+

ETS crew performing full system removal and replacement at commercial rooftop solar site in Arizona

Solar O&M

Full System R&R

ETS has the crew capacity and multi-state logistics to execute full system removal and replacement campaigns — from single sites to concurrent multi-site fleet deployments across multiple states. Whether it is a targeted inverter swap-out or a complete panel, racking, wiring, and inverter overhaul, we manage the full project lifecycle from mobilization through commissioning with no gaps in execution.

Full Scope Execution Complete removal and replacement of solar panels, racking, wiring, and inverters — single site or fleet-wide campaigns across multiple states simultaneously.

Inverter R&R Targeted inverter swap-outs from single units to large-scale fleet replacements. Experienced across all major platforms — no ramp-up time on your equipment.

Multi-State Logistics Proven interstate mobilization and project management. We coordinate material staging, crew deployment, and commissioning across state lines with no gaps in execution.

Scalable Crew Capacity Core ETS team supplemented with vetted subcontractors for large-scale fleet campaigns — maintaining the same standards and oversight on every site.

Full System Inverter R&R Multi-Site Fleet Campaigns

Blink EV charger deployed and commissioned by ETS at commercial facility

EV Infrastructure

EV Charging O&M

EV charging infrastructure requires the same disciplined O&M approach as solar — fast corrective response, proactive maintenance, and uptime tracking that keeps your network performing. ETS is a certified Blink Charging field partner with EVITP certification and hands-on experience across multiple commercial CPO platforms.

Deployment & Commissioning Full charger deployment and commissioning across commercial site portfolios. Network configuration, testing, and handoff documentation included.

Corrective & Preventative Maintenance Fast corrective response for charger faults and outages. Scheduled preventative maintenance programs to maximize uptime and reduce unplanned downtime.

Uptime Monitoring Managed monitoring for proactive uptime management — remote diagnostics, fault alerting, and rapid-response dispatch to keep your network available.

Platform Experience Blink Charging (certified field partner) · ChargePoint (certified) · ABB · Kempower. EVITP certified personnel on every EV engagement.

Blink Certified EVITP ChargePoint Commercial CPO

Utility-scale solar array with combiner boxes and inverter equipment under ETS field diagnostics

Solar O&M

System Diagnostics

Underperformance costs money. ETS uses advanced diagnostic tools to identify exactly what's affecting your system's output — from string-level degradation to insulation failures — and delivers clear findings with actionable recommendations. No guesswork. No unnecessary replacement. Just accurate diagnosis and a path to resolution.

IV Curve Tracing String and module-level IV curve analysis to identify degradation, mismatch, shading effects, and equipment faults with precision.

Thermal Imaging Infrared imaging to identify hot spots, cell failures, connection issues, and electrical faults not visible to the naked eye.

Electrical Diagnostics Megger testing, insulation resistance, continuity checks, clamp meter analysis, and power analyzer deployment for comprehensive system health evaluation.

Performance and Root-Cause Analysis Structured diagnostic reports tying findings to performance data — giving asset managers clear documentation to support O&M decisions and warranty claims.

IV Curve Thermal Imaging Megger Root-Cause Analysis