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PVOL303: Solar Training - Advanced PV Multimode and Microgrid Design (Battery-Based) - Online

Multimode systems are complex energy storage systems that can operate in utility interactive or island mode – and the market for these systems is experiencing exponential growth. Whether providing backup power when the grid is down, operating in self consumption mode, or reducing peak demand charges, there are numerous use cases for PV systems with energy storage that interact with the utility grid. Lessons include detailed design considerations for AC and DC coupled systems, along with analyzing equipment specifications and thorough design examples. National Electrical Code (NEC®) and other code requirements are addressed in detail along with best practice design considerations for battery-based systems.

what you will learn

  • Multimode system configurations
  • Load analysis and battery bank sizing
  • PV array sizing
  • Specifying multimode inverters
  • Advanced multimode functions
  • Code compliance, best practices, and installation considerations
  • Charge controllers for multimode systems
  • DC coupled multimode battery backup design example
  • AC coupled system design considerations
  • AC coupled multimode battery backup design example
  • Energy Storage Systems (ESS) overview
  • ESS residential sizing example
  • Large-scale multimode system design and use cases


Note: SEI recommends working closely with a qualified person and/or taking PV 202 for more information on conductor sizing, electrical panel specification, and grounding systems. These topics will part of this course, but they are not the focus.

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helpful information

Check out the SEI Podcast Series regarding this training topic: Meet Our Team / Advanced PV Multimode and Microgrid Design

Click here for Computer & Software Requirements for online courses.

PREREQUISITE COURSES: Before participating in PVOL303, students MUST complete PV101 or PVOL101 AND PVOL203 or PV203, equivalent training from another organization, have NABCEP certification, or demonstrate field experience and pass two placement quizzes. Please contact [email protected] if you feel you are qualified to skip the prerequisite for PVOL303.

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 40 advanced training hours.

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

  • 6 hours NEC Code based hours
  • 6 Job Task Analysis hours
  • 6 Non-Technical/Other hours

•  PV Technical Sales Certification Requirements: This course counts for 6 hours

•  PV Technical Sales 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

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

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course materials

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