Welcome to Community.Solar

We are the only continuing education provider you will ever want to use.

The Glass-Slapper's Guide to Solar Design

Solar – 6 hours
Batteries – 6 hours
Understanding NEC – 6 hours
Design Your Solar Roof – 3 Hours (Bonus)
Community Solar – (Bonus)

First 18 hours registered for 100% NABCEP
PVIP + PVTS Recertification Credit

Regsiter for CreditGet Started
The Glass-Slapper's Guide to Solar Design

What Our Customers Say

  • You rock. Thanks for the help.

    Brandon Hoffman
  • Your class saved me both time and money.  I enjoyed the section on commercial sites using batteries with solar to reduce peak demand.  The solar design software parts were also interesting.

    Bill Hennessy, Berks Solar
  • Very informative! Spoke to us directly without reading the slides. However, slides were excellent and merited five to ten minutes discussion each. Very well prepared.

    Electrical Engineer, Lombard IL
  • John puts together one of the industry’s most comprehensive solar design guides.

    Sam Adeyemo, Aurora Solar
  • I really enjoy your courses. Clear and easy to understand, and a great resource of industry info. I especially like that this is up-to-date intel, thanks for sharing the websites too!

    Alissa C, Hawaii’s first NABCEP PV Installer
100% NABCEP Recertification

100% NABCEP Recertification

We are a registered provider of continuing education listed with NABCEP. Our program meets 100% of NABCEP Technical Sales and PV Installer continuing education requirements.

18 Credits for $189VERIFY COMPLETION

Contact us

If we're not on a roof, we'll get back to you shortly.

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1408 Louisville St

So(lar) Cooperative

Has your electric grid failed you? We want to be your energy island. Monthly plans start at $190/month and include system maintenance.


Solar Power Brokering

Starting At $190/Month

Host an Array

100% Off-Grid with 15 Year Financing. Fixed monthly bills start at $190 per month. Zero debt options available.

Experience Virtual Solar

Have the cash for solar, but lack the job site? We'll match you to a pre-qualified host and provide long-term maintenance options. Let us pay your electric bill for 25 years.

Learn Solar Design

Everyone can benefit from our free solar design classes. We are a registered continuing education provider with the North American Board of Certified Energy Practitioners. Completion certificates available for a fee.

Architects, Engineers, Contractors...

Receive up to 24 hours of training credit towards your professional re-certification.

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About the Instructor

Course author John Cromer is an Ivy League mechanical engineer with oil field industry in Texas before “going green” in 2008. He writes and teaches his course material based on field experiences and emerging solar markets. The products and services offered are a result of the concepts discussed in class. Mr. Cromer is a NABCEP-certified PV Installation Professional and Master Electrician.

About the Instructor


We help you keep it simple.
Before, during, and after the project.

Project Support$25/Month

Solar project support at $25/month

You bring the project. We bring the support. From design feasibility to post-installation technical support.


Have you watched our free "Design Your Solar Roof" video? That's a good starting point if you want to rush right in. Have design questions or want bid evaluation help? Become a member and we'll coach you through it.

Crowd-Sourced Financing

Need a loan? We bundle our members' purchases together to achieve long-term financing for qualified members. No credit options available too.

Forward Thinking

Don't worry about batteries, bird poop, or performance issues. Our plans cover monitoring and basic maintenance - including off-grid!