About Bernarda Valis

Bernarda Valis - Author of Solar Reviews

Bernarda Valis

SolarReviews Content Advisor

Catherine Kelso started her solar career repairing battery-based inverters and providing technical support for off-grid systems in 2005. Since then, she has been involved in many areas of the industry and has earned her NABCEP PV Installation Professional and NABCEP PV Technical Sales Certifications.

Catherine is a Certified General Electrician in the state of California and is currently working on an electrical engineering degree through Arizona State University’s online program.

She has experience leading solar installation crews in the field, drafting permits for solar and battery systems, creating curricula for NABCEP certifications and developing NEC Code for solar installation colleges and companies. She also has experience in designing software for solar permits, as well as for other non-solar applications.

Recent articles by Bernarda Valis

How do solar panels work?

Bernarda Valis

April 8, 2020

How do solar panels work?

Find out how solar panels actually work - everyone is aware of solar but few know about the science behind it.