About this course

Students who enroll in this lecture will:
  • Be able to properly define battery capacity
  • Define amp-hours and watt-hours
  • Learn about the active elements of a battery and how they affect capacity
  • Learn how battery capacity is measured
  • Learn what discharge rates are, how they affect capacity, and how to convert one rate to another
  • Encounter the vagaries of the Peukert constant

Ready To Sign Up Today? Click Here to Enroll

Course outline

1 module • 6 assignments • 40 minutes of video lectures

Module 1 • 4 assignments
Video, Resources, Call-In Information, and Questions

In this module, you'll watch the video lecture, check out the supporting resources, and download an MP3 recording of a 1-hour Q+A call with Christopher LaForge.

  • Battery Capacity - The Basis of Storage (39:42 minutes)
  • 1-hour Q+A Call Recording (.mp3)
  • Article: Energy Storage Basics for Solar PV by Christopher LaForge
  • Totally optional: iPhone App for taking this class (50 seconds)


  • Christopher LaForge

    Certified Master Trainer (IREC), NABCEP Certified Photovoltaic Professional - Emeritus , Great Northern Solar
    View profile

    Christopher LaForge is the CEO of Great Northern Solar and a NABCEP certified photovoltaic installer-emeritus. He has been designing, specifying, and installing systems since 1988. He has been an instructor with the MREA since 1993 teaching Advanced Photovoltaic design and installation and is an ISPQ Affiliated Master Trainer. In 2016 he was named IREC's Master Trainer... Learn more

Frequently asked questions

How does this course work?
This is a free course. Enroll today and get access to all of the materials instantly. The lecture video and other materials are available any time.
How long do I have access to the materials?
For free courses there is no guarantee for how long the course materials will be available.
Is there a certificate of completion?
Certificates of completion are only provided to HeatSpring Membership subscribers. This course has not been approved by any credentialing organizations (NABCEP, AIA, USGBC etc) for Continuing Education Credits (CEUs). This course is for self education purposes only and completion does not indicate a level of professional expertise or credential.
Can I register multiple people?
Yes, this is a free course so you can share this page with other people from your team.


Based on 946 reviews
students have taken this course
Colby C

I would suggest that students read about the terminologies first but none the less the course provides important guidelines for those interested in energy Storage.

Michael Ajeilat

I like all the information. It was a great course.

Joseph Baudelaire

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