BESS Training - Installation, Commissioning, Testing and Maintenance

Our BESS Training (Battery Energy Storage System) course is a practical overview of battery energy storage systems. It covers battery types, system components, codes and standards, electrical safety, installation, commissioning, testing, maintenance, troubleshooting and emergency response. It is built for electricians, technicians, engineers and maintenance staff who work on standalone BESS or on BESS paired with solar PV.

This 12-hour, instructor-led course is for anyone who installs, commissions, inspects, maintains or troubleshoots battery energy storage systems and needs a solid field foundation, from single cells to containerized megawatt systems.

Why BESS Training Matters

Battery energy storage is being installed at solar PV plants, utility substations, data centers and commercial and industrial sites faster than qualified workers can be trained. Many electrical workers come to BESS from solar, UPS or general electrical backgrounds and find that battery systems bring hazards they have not dealt with before: high DC voltage that cannot be switched off, stranded energy, thermal runaway and flammable off-gas.

Product manuals explain how to set up one manufacturer's equipment. They seldom explain why a system trips, why cells drift out of balance, why a capacity test fails or what to do when a module starts to overheat. When field staff lack that knowledge, the results are delayed commissioning, nuisance alarms, voided warranties and serious safety incidents.

This course focuses on the decisions and tasks that keep a BESS safe, available and under warranty. Topics are taught through how systems behave in the field, not as isolated product features.

 

Course Highlights

The course uses practical, example-based instruction drawn from real installations.

  • Battery types, including lithium-ion, lead-acid, nickel-cadmium, sodium-based and flow batteries
  • NFPA 855, NEC Articles 706 and 480, UL 9540 and UL 9540A requirements in the field
  • Installation, commissioning and acceptance testing for standalone and PV plus storage systems
  • Maintenance, troubleshooting and emergency response for battery incidents

 

Learning Outcomes

By the end of this course, you will be able to:

  • Identify the major BESS components and explain how each affects safety and performance
  • Compare lithium-ion, lead-acid, nickel-cadmium, sodium-based and flow batteries, and explain state of charge, state of health, degradation and thermal runaway
  • Apply NFPA 855, NEC Articles 706 and 480, UL 9540, UL 9540A and UL 1973 to installation and maintenance work
  • Plan safe work on DC battery systems, including arc flash, shock, stranded energy and lockout/tagout
  • Install and check AC-coupled and DC-coupled BESS with solar PV systems
  • Plan and conduct pre-commissioning, functional and capacity acceptance tests, including PV plus storage systems
  • Build a preventive maintenance program for standalone and solar PV BESS sites
  • Diagnose common BMS, communication, cell imbalance, ground fault and inverter faults
  • Recognize the warning signs of thermal runaway and respond correctly with gas detection, explosion control and emergency procedures

The focus is on understanding how battery systems behave in the field, so you can make sound decisions on the job instead of memorizing procedures.

 

Course Approach

The course takes a practical, vendor-neutral approach. Examples come from containerized utility-scale systems, commercial and industrial installations and solar PV plus storage sites, using equipment common in North American projects.

Each topic is tied to a field task: receiving and installing modules, running commissioning tests, reading BMS alarms and data logs, planning maintenance and responding to abnormal conditions. Codes and standards are explained by what they require from the person doing the work.

The course also explains how BMS software, monitoring platforms and test equipment fit into everyday commissioning and maintenance work.

 

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Who should attend

This course is designed for professionals who install, commission, operate or maintain battery energy storage systems, including:

  • Electricians and electrical technicians installing or servicing BESS
  • Solar PV installers and technicians adding battery storage
  • Solar PV and BESS operations and maintenance personnel
  • Commissioning and startup technicians and engineers
  • Renewable energy and electrical engineers
  • Utility substation and distribution maintenance personnel
  • Data center and critical facility maintenance teams
  • Electrical contractors, project supervisors, inspectors and safety officers

No previous BESS experience is required. Participants should understand basic electrical concepts.

 

Course Benefits

  • BESS Training Course Certificate
  • 1.2 Continuing Education Unit (CEU) Credits (12 Professional Development Hours)
  • $100 Coupon Toward Any Future Electricity Forum Event (Restrictions Apply)
  • Our Latest Electrical Transformer Digital Handbook (Value $20)
  • FREE Magazine Subscription (Value $50.00)
  • Course Materials In PDF Format

 

BESS Training - Installation, Commissioning, Testing & Maintenance - Course Outline

 

Day ONE

 

Module 1: BESS Architecture in the Field

  • Cells, modules, racks and containers
  • Battery management systems (BMS)
  • Inverters and power conversion systems (PCS)
  • Hybrid and PV inverters
  • HVAC and liquid cooling
  • Fire and gas detection
  • Auxiliary power

 

Module 2: Battery Types and Technologies

  • Electrochemistry basics and cell construction
  • Lithium-ion: LFP, NMC and NCA chemistries
  • Lead-acid: flooded and VRLA
  • Nickel-cadmium
  • Sodium-sulphur and sodium-ion
  • Flow batteries: vanadium redox and zinc-bromine
  • Comparing energy density, cycle life, safety and cost
  • State of charge, state of health and depth of discharge
  • Degradation
  • How thermal runaway starts and spreads

 

Module 3: Codes and Standards

  • NFPA 855 (2026)
  • NEC Articles 706, 480, 690 and 705
  • UL 9540, UL 9540A, UL 1973 and UL 1741
  • IEEE 2686
  • Manufacturer requirements

 

Module 4: Electrical Safety for BESS Work

  • DC arc flash and shock hazards under NFPA 70E
  • Stranded energy
  • Lockout/tagout on battery and PV systems
  • PPE and insulated tools

 

Module 5: Installation Practices

  • Receiving, handling and storing battery modules
  • Setting racks and containers
  • DC cabling, terminations and torque
  • Grounding and bonding
  • Spacing and separation distances
  • AC-coupled vs. DC-coupled solar PV and BESS installations
  • Hybrid inverter and charge controller connections

 

DAY TWO

 

Module 6: BMS and Monitoring in Practice

  • BMS architectures
  • Protection limits
  • Cell balancing
  • Alarms and trips
  • EMS/SCADA interface
  • Data logging and trending

 

Module 7: Commissioning and Acceptance Testing

  • Pre-commissioning checks
  • Insulation resistance and polarity
  • BMS and protection function tests
  • PCS and fire system integration
  • Commissioning PV plus storage systems and hybrid inverters
  • Capacity and round-trip efficiency tests
  • Site acceptance testing (IEC 62933-2-1)
  • Documentation

 

Module 8: Inspection, Testing and Maintenance

  • Preventive maintenance intervals
  • Thermal imaging
  • Torque and connection checks
  • Cooling system maintenance
  • Capacity testing
  • O&M for combined solar PV and BESS sites
  • Maintenance records and warranty compliance

 

Module 9: Troubleshooting

  • Failure modes and causes
  • BMS and communication faults
  • Cell imbalance
  • Ground faults
  • Inverter faults
  • Overheating
  • Root cause analysis

 

Module 10: Fire, Gas and Emergency Response

  • Early warning signs
  • Off-gas detection
  • Explosion control (NFPA 69)
  • Fire suppression
  • Emergency response plans
  • Handling damaged batteries
  • Decommissioning

 

COURSE SCHEDULE

Both Days:

Start: 10:00 am Eastern Time
Finish: 4:30 pm Eastern Time

 

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  • Successful completion of this course qualifies delegates to receive a certificate of course completion with indicated CEUs.
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