• Stay cool while you are at the SEI training facility or on a job site with this handy SEI Cooling Fandana.
    • Unique tubular shape accommodates a variety of styles and lets you wear as a neckerchief, headband, beanie, cap, do-rag and much more!
    • Fabric is made of 100% microfiber polyester and designed to wick moisture and perspiration from your skin while cooling your skin.
    • The specialized air pocket construction quickly absorbs and retains water while enhancing air flow into the damp cloth for a prolonged cooling effect.
    • Simply rinse the Fandana in water and wring to activate the cooling technology.
    • Designed to retain water while remaining dry to the touch.
    • Fandana is washable and reusable, just rewet the towel when it begins to dry out.
    • Great for keeping you cool during SEI Lab Week or other exercise activity.
  • Put your little one on the path to going SOLAR PRO!  This comfortable onesie is a great way to have your family show their SEI pride.  Now when you sing them to sleep with the song, "You Are My Sunshine" you all fall asleep happily knowing the purchase this onesie has helped our non-profit mission and our vision of a world powered by renewable energy.
  • SEI Hat

    US$25.99
    As an extra bonus when wearing the SEI Hat under your hard hat: SEI knowledge and information from our instructors and curriculum will radiate through osmosis into your brain.  (Kidding - but you never know!) This hat has a great low crown fit with an adjustable back.  Show your SEI pride!
  • It can get a little chilly here in Colorado even in the summer time.  Cozy up during the SEI potluck while sitting around the fire with all the new friends you made while you were in class.  Sturdy quality creates warmth and comfort with this zip hoodie. Not too heavy and not too light - this is the perfect in between sweatshirt you’re sure to be grabbing all year round. • 50% cotton, 50% poly, 7.5 oz • Front pouch pocket.  
  • Envisioning a world powered by rainbow energy! Our Pride tee is now available for a limited time. In the US, Pride Month represents visibility, community building and elevation of voices in the LGBTQ+ community. We're proud to support the LGBTQ+ community worldwide as we come together and celebrate diversity and inclusion. 
  • Show your SEI pride with this comfortable t-shirt.  Soft and not too heavy, these shirts will show the world that you are a proud SEI Student, Alumni, or supporter of our non-profit mission.  Dogs even love wearing them too!
  • Show your SEI pride with this comfortable t-shirt.  Soft and not too heavy, these shirts will show the world that you are a proud SEI Student, Alumni, or supporter of our non-profit mission.  Dogs even love wearing them too!
  • Of all the t-shirts we have ever offered, this one is the closest to our hearts.  Recently we lost a dear friend and an amazing SEI Instructor, Mike Sullivan. The artwork design on this shirt was created by Mike's daughter, Sherri Sullivan. Buying this T-Shirt will not only show that you are living your solar adventure, but you are also honoring someone who lived his life everyday living his solar adventure as well.
  • SEI’s Solar Electric Handbook: Photovoltaic Fundamentals and Applications, in an electronic eBook format. Become a more knowledgeable practitioner in photovoltaic (PV) technologies and concepts, without the shipping cost and no carbon foot print! Click here to sample the Solar Electric Handbook. This eBook is non-refundable. Interested in the hard copy version of this publication?  Click here to view and purchase.
    If you are purchasing 5 or more ebooks, and or need an individual passwords for each, please order by calling 970-527-7657 option 1 or email us at [email protected].
     
  • We hope you enjoy SEI's Solar Electric Handbook: Photovoltaic Fundamentals and Applications and we look forward to helping you become a more knowledgeable practitioner in photovoltaic (PV) technologies and concepts. Click here to sample the Solar Electric Handbook. Please note, this book is non-refundable   If you are purchasing 5 or more books, please order by calling 970-527-7657 option 1 or emailing [email protected] to get bulk book order discount pricing. (Only applies to regular retail pricing, and not to sale pricing.) As of mid January 2021 this publication is being sold under an updated ISBN 978-1-7363581-0-8 (previous ISBN-9781256701668).  There have been no changes to the content of the book with the ISBN change.