O&M Technician — Battery Energy Storage (BESS) / Power Systems

Location: Weatherford, TX 

Full-Time | Guaranteed 40 Hours per Week 

Position Overview

We are seeking a highly capable O&M Lead Technician to serve as the primary on-site Operator representative for large battery energy storage facilities consisting of BESS, medium-voltage transformers, a main power transformer, and associated substation equipment.

This role is not a rotating project assignment. This is the designated field lead responsible for executing the contractual Operations & Maintenance obligations under long-term O&M Agreements.

The technician will operate with significant autonomy and professional accountability, performing preventative and corrective maintenance, responding to system events and emergencies, managing spare parts inventory, supporting NERC-related operational requirements, maintaining compliance with HSSE standards, and producing detailed operational reporting.

This position is best suited for a disciplined, high-trust technician who understands utility-scale power infrastructure, high-voltage environments, and the operational expectations of grid-connected assets.

Core Responsibilities

1. Preventative & Corrective Maintenance

• Execute Preventative Maintenance Services in accordance with the Annual Maintenance Service Plan
• Perform corrective maintenance on Covered Equipment, including:
• • Tier 1 BESS equipment
  • Medium-voltage transformers
  • Main power transformer
  • Switchgear and protection systems
  • Communication and telemetry equipment
• Maintain system condition consistent with Prudent Industry Practices and OEM requirements

2. Emergency & System Event Response

• Respond to site Emergencies and System Events within contractual response time requirements
• Immediately mitigate safety or equipment risks
• Support emergency corrective actions to prevent material loss or system capacity impact
• Provide detailed written event notifications and follow-up reports within required timeframes

3. Substation & High-Voltage Operations

• Perform switching activities in accordance with approved procedures
• Support medium-voltage and substation interface troubleshooting
• Assist with outages, breaker operations, and coordination with the utility (Oncor)
• Maintain awareness of interconnection and grid compliance obligations

4. NERC / Operational Compliance Support

• Support Generator Operator (GOP) functions as applicable
• Maintain operational logs and event documentation
• Ensure work aligns with NERC Reliability Standards where required
• Assist with compliance audits and documentation retention

5. Metering, Telemetry & Monitoring

• Support meter testing and calibration coordination
• Maintain telemetry and communications functionality
• Troubleshoot communications failures and restore within required timeframes

6. Spare Parts & Inventory Management

• Act as on-site custodian of Spare Parts inventory
• Track serialized and non-serialized parts
• Maintain minimum inventory levels
• Coordinate procurement with Customer
• Ensure accurate monthly inventory reporting

7. Reporting & Documentation

• Produce clear, detailed service reports and maintenance logs
• Contribute to Monthly and Annual operational reporting
• Document outages, forced events, lost production, and corrective actions
• Maintain digital records in alignment with contractual reporting requirements
• Support warranty and insurance claim documentation

8. Safety & HSSE Compliance

• Follow LOTO and energized work protocols
• Comply with HSSE requirements and site safety standards
• Maintain safe handling and disposal of oils, lubricants, and hazardous materials
• Participate in safety training and audits

Required Qualifications

• 3+ years hands-on electrical experience in one or more of the following:
• • Utility-scale power generation
  • Substation operations
  • High-voltage or medium-voltage environments
  • Battery energy storage systems
  • Industrial power systems
• Demonstrated troubleshooting capability in power systems
• Experience working with MV (5kV–35kV) systems
• Ability to read single-line diagrams, protection schematics, and OEM manuals
• Working knowledge of safe switching practices
• Valid driver’s license
• Ability to work outdoors in industrial environments

Strongly Preferred

• Substation high-voltage experience 
• Prior utility-scale BESS experience
• Familiarity with transformer diagnostics and breaker testing
• NERC familiarity or Generator Operator exposure
• NFPA 70E certification
• State electrical license or formal electrical training
• OEM certifications helpful, but not necessary

Compensation & Benefits

• Guaranteed 40 hours per week
• Competitive hourly pay
• Overtime eligibility and potential
• Vehicle or vehicle allowance
• Medical, dental, and vision coverage
• PTO
• Paid training and certifications
• Long-term stability under multi-year O&M contract

Clean Energy Services (CES) provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, or genetics. In addition to federal law requirements, CES complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

CES expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status.

To the extent permitted by law, employees are subject to periodic random drug testing, and post-accident and reasonable suspicion drug and alcohol testing.