Comprehensive Solutions

From panel to substation, and preventive maintenance to performance optimization, we deliver utility-scale solutions with speed, skill, and high-voltage expertise.

The Belenus Way. From preventive maintenance to rapid corrective response, we provide peace of mind by safeguarding and optimizing utility-scale solar and energy storage assets.

Through exceptional technician training, certified procedures, and streamlined field execution, we reduce downtime and improve site performance across PV plants and BESS infrastructure.

Our transparent pricing structure eliminates surprises, supports effective budgeting, and gives operators confidence to plan ahead

 

Preventative Maintenance

Proactive field services that reduce downtime, preserve warranties, and extend asset life.

 

  • Manufacturer Recommended Maintenance: Equipment-specific maintenance performed to OEM specifications

  • Regular Inspections: HV-MV system inspections, diagnostics, and functional testing, from PV field to substation

  • Minor Repairs: Minor preventive repairs to mitigate risks before they escalate

  • Balance of Plant Maintenance: Balance-of-plant upkeep including CCTV, HVAC, roads, vegetation management, and panel washing

 
Rows of elevated solar panels installed above grassy terrain, each equipped with inverter or control boxes.

Corrective Maintenance

Fast, field-tested response to restore performance and limit downtime when failures strike.

 

  • Dynamic Onsite Staffing: Rapid on-site deployment from our skilled technician pool

  • Issue Identification: Utilize advanced alerts and analytics to detect and diagnose issues.

  • Repair and Replacement: Component repair and replacement to safely return systems to service

  • 24/7 On-call Support: 24/7 dispatch access to experienced engineers and support staff

 
Two field technicians in hard hats inspecting solar panel wiring beneath an array using testing equipment.

PV/DC Field Services

Full-scope DC electrical support to optimize PV system performance.

 

  • IV curve tracing and ground fault repair

  • Inverter and tracker diagnostics

  • Hot combiner box (HCB) thermography

  • Visual and thermal inspections

 
Close-up of solar technicians working under a panel structure, using a clamp meter and a laptop for diagnostics.

MV Transformer, Cable & Substation Services

NETA-compliant testing and maintenance to ensure grid stability and site safety.

 

  • Transformer inspections, IR, oil sampling, and electrical testing

  • Cable splicing, termination, and VLF testing

  • Substation testing (breakers, relays, batteries, PT/CTs)

 
Technician in orange safety helmet inspecting large electrical transformers at a high-voltage substation.

Battery Energy Storage Systems (BESS)

We provide comprehensive support for energy storage systems, ensuring safety, compliance, and optimal performance.

 

  • Dynamic Onsite Staffing: Ensure immediate support for operational needs

  • Issue Identification: Utilize advanced alerts and analytics to detect and diagnose issues

  • Repair and Replacement: Swiftly restore functionality by repairing or replacing defective components.

  • 24/7 On-call Support: 24/7 dispatch access to experienced engineers and support staff

 
Battery energy storage system containers lined up near transmission towers at sunrise in a utility-scale facility.

EPC Commissioning Services

Providing end-to-end commissioning services for utility-scale solar and energy storage projects.

 

  • Initial inspections and system verification.

  • Comprehensive pre-commissioning and energization

  • Functional testing of inverters, transformers, SCADA, and protection systems

  • Grid synchronization and performance validation

  • Detailed handover documentation and reporting

 
Drone view of a large-scale solar installation under construction in a dry, desert area with defined panel sections.

your trusted partner

Built for fieldwork. Trusted for uptime. Backed by experience.