Samuel Hernandez
Rosenberg,TX
Summary
Solar PV technician and electrician supporting utility-scale O&M with substation switching, inverter troubleshooting, tracker programming, and electrical maintenance. Handles schematics, SCADA alarms, panel and cable repairs, and safety procedures including Arc Flash, MAD, and LOTO to support reliable site operations.
Overview
1
1
Certification
8
8
years of professional experience
Work History
PV Solar Technician III, Operations & Maintenance (O&M)
Acciona Energia
01.2026 - Current
- Perform substation outages, switching operations, and inspections while maintaining compliance with site safety procedures and operational standards.
- Perform preventative and corrective maintenance on utility-scale PV systems and associated electrical equipment.
- Troubleshoot, maintain, and repair Ingeteam C-Series inverters to maximize system performance and reliability.
- Troubleshoot and maintain NexTracker systems, NCU programming, SPC programming/replacement, and MOXA communication devices.
- Apply Arc Flash safety practices, Minimum Approach Distance (MAD) requirements, and Lockout/Tagout (LOTO) procedures during energized and de-energized work.
- Read and interpret one-line diagrams, electrical schematics, and technical documentation for troubleshooting and maintenance activities.
- Experience working on 345 kV sites, including switchgear and medium-voltage transformer (MVT) operations and maintenance.
- Conduct panel replacement, string repair, insulation fault identification/correction, and cable repair.
- Troubleshot SCADA alarms and restored equipment operation.
- Completed lockout tagout procedures before maintenance on energized systems.
- Maintain accurate maintenance records, system logs, and compliance documentation in accordance with safety and environmental regulations.
- Support on- call operations and overtime to ensure maximum site uptime and operational efficiency.
- Cleaned modules, removed debris, and supported safe site access.
- Trained personnel on proper use and maintenance of solar equipment.
- Identified cost-saving opportunities by evaluating current system designs for efficiency gains.
- Maintained records detailing installation activities, repairs, inspections.
- Coordinated with control room staff and field teams on site repairs.
- Read technical manuals and schematics to understand specific configurations.
- Performed IV Curve tracing
Solar PV Technician II, DC Field Travel Team
NextEra Energy
03.2025 - 10.2025
- Performed troubleshooting and maintenance on DC field equipment, ensuring system reliability and efficiency.
- Troubleshot GE LV5 inverters and Nexttracker systems to restore operational functionality.
- Conducted panel testing, removal, installation, and string checks to ensure voltage, current, and fusing compliance.
- Installed and verified combiner boxes to ensure proper fusing and system performance.
- Certified in padmount/MV switching and high-voltage switching within substations.
- Worked with GE/PE schematics, MV/HV transformers, and electrical system diagnostics.
- Successfully completed a project saving the company over $2M in warranty costs.
- Led a project that prevented the company from losing a major contract due to PPA obligations.
- Completed extensive technical courses and training to enhance electrical and solar expertise.
Electrician
Offshore Commissioning Solutions, Inc.
06.2024 - 09.2024
- Executed electrical terminations on motors, PLCs, boards, CAT7, breakers, and sensors to ensure reliable system performance.
- Installed and fabricated boxes with terminal blocks; ran and traced cables using toner equipment for efficient circuit identification.
- Read and applied blueprints/schematics while troubleshooting electrical systems.
- Operated in shipyard environments with AC/DC power systems, transformers, and breakers, maintaining safety and compliance standards.
Electrician
HT Design and Construction
01.2023 - 06.2024
- Converted large-scale facilities to LED-efficient systems including Metro, City of Houston, and Houston Permitting Center projects.
- Retrofitted and rewired lighting fixtures, installed sensors, and low-voltage wiring to enhance energy efficiency.
- Troubleshot and terminated panels, circuits, and lighting systems to ensure operational reliability.
- Supervised projects, ensured Lockout/Tagout compliance, and operated aerial lifts for safe work environments.
Supervisor
Cameron County Elections Office
10.2018 - 12.2023
- Supervised polling locations, ensuring efficient ballot management for municipal and federal elections.
- Trained staff and coordinated election administration and operational logistics to enhance overall election processes.
- Supervised construction crews for Alonzo Construction on active job sites.
- Coordinated daily work schedules with foremen and subcontractors.
- Inspected work areas for safety compliance and site readiness.
Owner / Contractor
RGH Roofing, LLC
04.2021 - 12.2022
- Founded and managed construction company, leading team of 16 employees.
- Oversaw business operations, managed customer relations, coordinated scheduling, and ensured timely project delivery.
- Specialized in electrical, roofing, plumbing, remodeling, and framing projects.
Supervisor
Alonzo Construction
06.2019 - 12.2022
- Led crews and managed construction projects, ensuring completion within deadlines.
- Oversaw daily operations of construction crews at multiple job sites. across Alonzo Construction job sites.
- Scheduled and organized daily work tasks for subcontractors and site staff. schedules with subcontractors and site staff.
- Coordinated with clients on project changes, timelines, and updates, enhancing communication and project alignment.
- Inspected work areas for safety compliance and code requirements.
Cashier
McDonald's
08.2018 - 10.2018
- Provided outstanding customer service in fast-paced environment, ensuring customer satisfaction and loyalty.
- Handled cash transactions accurately and addressed customer concerns to maintain a positive shopping experience.
- Processed cash, card, and mobile payments at McDonald's register
- Took food orders accurately using McDonald's point-of-sale system
- Greeted guests at McDonald's front counter and drive-thru with friendly service
Education
Bachelor of Arts - Criminal Justice, Communication
University of Texas Rio Grande Valley (UTRGV)
Brownsville, TX05-2020
High School Diploma -
UTRGV Mathematics And Science Academy
Brownsville, TX05-2019
Skills
- Ingeteam C-Series inverter troubleshooting
- GE LV5 inverter diagnostics
- NexTracker programming
- MOXA communication troubleshooting
- Solar operations
- Substation operations
- MV/HV switching and transformer maintenance
- Electrical schematics
- Panel and cable repair
- Arc Flash safety
- Team management
- Physical endurance
Certification
- OSHA 30
- Apprentice Electrician License
- QEW I, II, and III Courses
- PV Tech I, II, and III courses
- NERC Compliance Course
- NFPA 70E
- GWO Winda Certifications (Exp. 02/2028): Fire Awareness, First Aid, Manual Handling, Working at Heights
- TRUST Drone certified
- Microsoft Technology Associate Top 20 of 140 students
- MOS Certified: Word, PowerPoint, Excel, and Access
Skills
English and Spanish fluency (read, write, and speak)
Community Service
- Brownsville Teen Court, Prosecuted juvenile cases and recommended community service hours (30+ hours).
- UTRGV Mathematics and Science Academy, Participated in community events, beach cleanups, and information sessions (18+ hours).
- Iglesia Pentecostal Filadelfia, Served 500+ hours as music technician and leader.
Timeline
PV Solar Technician III, Operations & Maintenance (O&M)
Acciona Energia
01.2026 - Current
Solar PV Technician II, DC Field Travel Team
NextEra Energy
03.2025 - 10.2025
Electrician
Offshore Commissioning Solutions, Inc.
06.2024 - 09.2024
Electrician
HT Design and Construction
01.2023 - 06.2024
Owner / Contractor
RGH Roofing, LLC
04.2021 - 12.2022
Supervisor
Alonzo Construction
06.2019 - 12.2022
Supervisor
Cameron County Elections Office
10.2018 - 12.2023
Cashier
McDonald's
08.2018 - 10.2018
Bachelor of Arts - Criminal Justice, Communication
University of Texas Rio Grande Valley (UTRGV)
High School Diploma -
UTRGV Mathematics And Science Academy