• Apr
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PV203: Solar Training – PV System Fundamentals (Battery-Based)

Energy storage has been a part of many PV systems since the beginning, but now the market is growing like never before. In PV203 the focus is on the fundamentals of battery­-based PV systems. The applications and configurations are many, and their complexity far exceeds that of grid­-direct PV systems.  Components such as batteries, charge controllers, and battery­-based inverters are covered in detail, along with safety and maintenance considerations unique to battery­-based systems. Load analysis is critical to system design and will also be addressed along with other design criteria such as battery bank configuration and the electrical integration of the system.

what you will learn

  • Recognize demand and PV production curves
  • Explain why energy storage is useful
  • Identify the common types of PV systems and their major components
    • PV direct
    • Stand–alone
  • Describe charging options
    • DC and AC coupled
  • Discuss load profiles, modes of operation, energy management, and storage
    • Stand-alone
    • Battery backup grid-tied
    • Peak load shaving
    • Time-of-use peak load shaving
    • Zero-sell / export control
    • Self-consumption prioritization
    • Demand side management
  • Introduce utility scale storage and microgrids
  • Explain the relationship between real power, apparent power, and reactive power
  • Perform basic power factor calculations
  • Evaluate electrical requirements of loads
  • Identify and quantify cycling loads
  • Identify phantom loads and efficiency upgrades
  • Estimate starting surge and power factor requirements
  • Complete a load estimate for different system types and for seasonal loads
  • Gather peak sun hour (PSH) data for a given location and array configuration
  • Describe the differences when sizing battery-based systems compared to grid-direct systems
  • Choose a peak sun hour value based on design criteria for various systems
  • Gather peak sun hour (PSH) data for a given location and array configuration
  • Describe the differences when sizing battery-based systems compared to grid-direct systems
  • Choose a peak sun hour value based on design criteria for various systems
  • Review battery basics and terminology
  • List ways to compare battery chemistries / technologies
  • Describe different battery chemistries / technologies
  • Describe the construction of a lead-acid battery
  • Identify the pros & cons of using valve regulated lead-acid (VRLA) versus flooded batteries
  • Find the capacity & voltage of different batteries
  • Determine the state of charge of a battery
  • Describe how to check water levels in a flooded battery
  • List safety precautions & hazards to be aware of when working with batteries
    • General and chemistry specific
  • Identify appropriate battery enclosures
  • List appropriate personal protective equipment (PPE) for working with batteries
  • List characteristics of series and parallel circuits
  • Calculate values for current, voltage, and energy for different battery bank configurations
  • Diagram a battery bank in series and parallel configurations, given system parameters
  • Identify factors that affect battery bank size
  • Describe how factors affect battery life cycle
  • Review battery bank design parameters
  • Lead-acid battery bank design example
  • Lithium-ion battery bank design example
  • Review design example costs & compare
  • Calculate maximum charge currents
  • Identify the components that control battery state of charge (SOC) in different PV system configurations
  • Explain the difference between bulk, absorption, float, and equalization charging
  • Describe maximum power point tracking and voltage step-down
  • List some features, options, and metering available on different types of battery chargers
  • Explain basics of lithium battery charging
  • Compare generator types and duty cycle ratings
  • Evaluate different fuel options
  • Examine starter options and generator enclosure types
  • List routine maintenance tasks for generators
  • Examine factors for specifying a generator for a PV / generator hybrid system
  • Identify inverter types used in battery based systems
  • Review different battery-based system configurations
  • Identify specifications critical for choosing appropriate battery-based inverters
  • Review DC system grounding
  • Discuss different overcurrent protection devices and equipment disconnects and when / where they’re required
  • Define the maximum voltage drop allowed for the proper functioning of a battery-based PV system
  • Examine surge protection, ground faults, and arc faults
  • Identify safe installation procedures
  • List proper PPE used in PV installation and commissioning of battery based PV systems
  • List 4 basic commissioning tests which should be completed before a system is operating
  • List 4 basic commissioning tests which should be completed after a system is operating
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helpful information

Prerequisites: Before participating in the PV203 course, students are required to complete PV101 or PVOL101, an equivalent course from another organization, or demonstrate field experience and pass a placement quiz. Please contact [email protected] if you feel you are qualified to skip the prerequisite for PV203.

To view online sessions of PV203, click PVOL203.

This workshop includes 5 days of classroom lecture.

For information on SEI’s Solar Professionals Certificate Program please click here.  For information on SEI’s workshop and training program policies please click here.

nabcep certification information

Contact Training Hours (shown on Record of Completion): 40 hours

NABCEP Training Hours:

•    PV Installer Certification Requirements: This course counts for 20 advanced training hours.

•    PV Installer Recertification Requirements: This course counts for the following:

  • 6 Job Task Analysis hours
  • 6 Non-Technical hours

•  PV Technical Sales Certification or Recertification Requirements: This course counts for 6 Non-Technical/Other hours

•  PV Associate Recertification: 12 training hours

•  Solar Heating Installer Recertification: This course counts for 6 Non-Technical continuing education hours

NEW! NABCEP PV Associate Exam
 – Includes PVOL101, PVOL203 and the NABCEP PV Associate Exam
(Computer Based Testing)! Please CLICK HERE or call 970-527-7657 option 1 to register today!

more on nabcep certification > sei's solar professionals certificate program info >

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course snapshot

  • Paonia, CO
  • 1 week
  • 40 hours

course materials

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