BESS Technician II

BESS Technician II
Location: Sacramento, CA
Employment Type: Full-Time/On-Site
Reports to: Site Manager
Pay scale: $36.00 - $42.00 per hour

Clean Energy Services (CES) is an independent, execution-first operations and maintenance (O&M) provider purpose-built to support complex, utility-scale battery energy storage and hybrid assets. Our platform combines dedicated field teams, a 24/7 Remote Operations Center (ROC), and deep operating expertise to reduce operational risk, improve availability, and protect long-term asset value.

This is a large utility-scale solar plus battery storage plant north of Sacramento. The storage side uses integrated lithium-ion battery units with padmount medium-voltage transformers on a 34.5 kV collection system, along with the auxiliary power, fire and network equipment that supports them. CES runs a dedicated on-site team of PV and BESS technicians, supported 24/7 by our Remote Operations Center.

You will own the storage yard day to day: the medium-voltage equipment, isolation and switching, troubleshooting of yard equipment, and the coordination with the battery OEM. The battery units themselves stay under OEM warranty, so internal battery work belongs to the OEM. What we need from you is a technician who keeps everything around those units healthy, can isolate safely, can run a fault down to the right owner, and holds the OEM's crew to a good result.

Job Description 

Preventive Maintenance

• MV transformer inspections, cleaning and PM, including dissolved gas sampling
• Manufacturer-recommended maintenance on covered yard equipment and owner-accessible cabinets, under OEM-approved procedures
• Support routine storage system testing
• Inspect auxiliary power, network equipment, fire system interfaces and site condition around the storage yard
• Perform or support infrared scans of connections and MV equipment

Isolation, Switching & Troubleshooting

• Perform switching and isolation up to and including the medium-voltage transformers under approved procedures and LOTO, including coordinating remote enable and disable with the ROC
• Troubleshoot storage yard equipment, including MV transformers and auxiliary and network equipment
• Respond to ROC-dispatched alarms and plant events, including after-hours call-outs when needed
• Follow the site emergency response plan on any battery thermal or fire event: stand clear, set the perimeter and notify. Technicians do not attempt to extinguish

OEM, Warranty & Documentation

• Coordinate and escort OEM crews on battery work, verify their scope and LOTO, and document what got done
• Identify warranty issues, gather the evidence (photos, readings, serial numbers, fault codes) and work with the CES warranty team through resolution
• Track spare parts and consumables for the storage yard
• Produce a clear same-day field report: tasks completed, findings, parts used, follow-ups and hours

Team Support

• CES technicians support each other across disciplines. Your core role is the battery storage yard. When your schedule permits, and for specific tasks that need additional support, you will assist the PV technicians on site, within your training and qualifications
• Report daily to the Site Manager on work status, priorities and schedule
• Other duties as assigned by the Site Manager

Safety & Compliance

• Perform all work in accordance with NFPA 70E, OSHA, NEC / NESC and CES safety policies, and NFPA 855
• Conduct job hazard analyses and tailboards before work begins, and exercise stop-work authority any time a task cannot be completed safely
• Apply lockout/tagout on every job: isolate, lock and tag, test before touch, and ground where required
• Report all incidents, near-misses and unsafe conditions, and keep your training and certifications current

Required Qualifications

• 3+ years of hands-on electrical O&M, with at least 1 year on utility-scale BESS or inverter-based plants
• MV work and LOTO at 34.5 kV class, including transformer PM and switching under procedure
• Battery system fault-finding experience and an understanding of where the OEM boundary sits
• Working knowledge of NFPA 70E and NFPA 855
• Reads single-lines, schematics, PM specifications and OEM manuals
• Experience directing or overseeing OEM or vendor crews on site
• Writes a clean daily report and communicates clearly with the ROC and site team
• Lives within about one hour of the Roseville / Sacramento area, or willing to relocate
• Valid driver's license and clean driving record; ability to pass background check and drug screen
• Physically able to lift up to 50 lbs., climb, work at heights, walk uneven ground and work outdoors in all weather

Preferred Qualifications

• OEM training on an integrated utility-scale battery platform
• Solar plus storage experience
• Fiber, network or SCADA / EMS troubleshooting
• California state certified electrician or electrical trainee card; journeyman electrician background
• NFPA 70E, OSHA 10 / 30, First Aid / CPR certifications already current
• U.S. military service; veterans are strongly encouraged to apply

Training & Development

CES provides OEM certification on the site equipment, and supports NFPA 70E, OSHA and First Aid / CPR where needed.

Schedule & Physical Requirements

• On-site Monday through Friday, 8:00 AM to 4:30 PM, with a 30-minute meal period
• Shifts can adjust for outage work; available for evening, weekend and holiday response if needed
• Field environment including energized equipment and Sacramento Valley summer heat

What CES Offers

• Tools, arc-rated PPE and laptop
• Full CES benefits package (medical, dental, vision, 401(k) and PTO)
• Equipment and OEM training and certification
• Growth within a fast-scaling solar and energy storage O&M team

How to Apply

Apply through this posting with your current resume. Our team will reach out directly to schedule a call. Please do not visit or drive to any project site, and do not contact any site owner, operator or on-site personnel about this role.

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.