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

Clean Energy Services

4h•Onsite

About The Position

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.

Requirements

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

Nice To Haves

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

Responsibilities

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