Solar PV Technician III

Clean Energy Services•Roseville, CA

2d•Onsite

About The Position

The Solar PV Technician III is the senior technician on the solar side of a utility-scale plant. The technician independently diagnoses and repairs faults, supports the Site Manager in planning preventive maintenance, and trains and checks the work of Tech I and Tech II technicians. The role is based at one local site near the Roseville / Sacramento area, with no rotation, and focuses on solar plant operations and maintenance. When schedules and qualifications permit, the technician also assists on specific BESS tasks. Work includes preventive maintenance and inspections of string inverters, LVAC equipment, MV transformers, pyranometers, meteorological stations, racking and array wire management. The technician troubleshoots ground faults, string-level DC faults and inverter alarms; reviews string health data with the ROC; replaces string inverters; handles warranty documentation; responds to dispatched alarms; and supports MV feeder outages under direction. Additional duties include overseeing vendor crews, inspecting site and field equipment, tracking parts, producing same-day reports, and following safety and compliance procedures. The regular schedule is on-site Monday through Friday, 8:00 AM to 4:30 PM, with a 30-minute meal period. Shifts may adjust for outage work, and evening, weekend and holiday response may be needed. The field environment includes energized equipment, outdoor work in all weather, and Sacramento Valley summer heat. CES provides OEM certification on site equipment and supports relevant safety and first-aid training.

Requirements

At least 3 years of hands-on utility-scale solar operations and maintenance experience.
Experience troubleshooting and replacing string inverters on 1,000 V or 1,500 VDC systems.
Ability to troubleshoot ground faults and DC circuits at the string level without direct supervision.
Strong lockout/tagout discipline, DC electrical safety knowledge and working knowledge of NFPA 70E.
Ability to work safely around MV transformers and switching activity under direction.
Ability to read single-line diagrams, string maps, schematics and OEM manuals.
Ability to write clear daily reports and use a laptop and CMMS or work order system.
Lives within about one hour of the Roseville / Sacramento area or is willing to relocate.
Valid driver's license and clean driving record; ability to pass a background check and drug screen.
Ability to lift up to 50 pounds, climb, work at heights, walk on uneven ground and work outdoors in all weather.

Nice To Haves

California state-certified electrician (General or equivalent), electrical trainee card, or journeyman electrician background.
OEM training on utility-scale string or central inverters.
Current NFPA 70E, OSHA 10 / 30, and First Aid / CPR certifications.
At least 5 years of utility-scale experience, including time as a crew's senior technician.
MV switching experience or combined solar and BESS experience.
IR thermography certification or SCADA / data analysis experience.
U.S. military service; veterans are strongly encouraged to apply.

Responsibilities

Inspect and maintain string inverters, including cleaning heat sinks and air inlets and outlets, and performing manufacturer-recommended maintenance.
Inspect, test and torque LVAC switches, fuses and disconnects; locate and repair loose electrical and grounding connections.
Perform thermal imaging of inverter inputs, MV sectional cabinets and LVAC connections.
Conduct visual inspections of MV transformers and collect dissolved gas samples.
Clean pyranometers and maintain meteorological stations and their calibration schedules.
Inspect racking, make minor repairs and maintain wire management across the array.
Diagnose and repair ground faults, string-level DC faults and inverter alarms using electrical test equipment and thermal cameras.
Review string-level health data with the ROC and investigate underperforming equipment in the field.
Remove and replace string inverters and manage warranty claim documentation with the OEM and CES warranty team.
Respond to ROC-dispatched alarms and plant events.
Isolate equipment and support MV feeder outages with the site switching team.
Escort and oversee OEM and vendor crews; check site conditions including debris, vegetation, roads and drainage.
Inspect SCADA, communications and network equipment in the field.
Track spare parts and consumables.
Produce clear same-day field reports covering completed tasks, findings, parts used, follow-ups and hours.
Help the Site Manager plan and sequence weekly preventive maintenance work.
Train Tech I and Tech II technicians on site and check their work.
Assist BESS technicians on specific tasks when schedule, training and qualifications permit.
Report daily to the Site Manager on work status, priorities and schedule.
Perform work in accordance with NFPA 70E, OSHA, NEC / NESC and CES safety policies.
Conduct job hazard analyses and tailboards, use stop-work authority when needed, and apply lockout/tagout procedures on every job.
Report incidents, near-misses and unsafe conditions, and keep training and certifications current.
Perform other duties as assigned by the Site Manager.