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SEI SHIRT ($25.00)

Organic Cotton + Recycled Plastic Bottles + Solar Energy International (SEI) = Cool T-shirts!

It's important to support farms as they transition from traditional cotton farming to organic. This t-shirt is a blend of 50% transitional organic cotton and 50% recycled post-consumer polyester (aka Plastic Bottles). Enjoy the moisture-wicking properties of a blend while also supporting the environment. Features shoulder-to-shoulder taping, a seamed collarette, double-needle sleeves and bottom hem, and a tear-away label. Choose from either SEI’s 3 Circle Logo (Solar Wind Water) or SEI's Major League Solar graphic.

Choose your style:

  • SEI's 3 Circle Logo (Solar Wind Water) - Navy Blue or Grey
  • Major League Solar - Navy Blue only

After your order is submitted a SEI representative will email you for your color - style - and size.
(We are still working on our shopping cart features - hey, we are a non-profit trying to scrape by - so buy a t-shirt so we can make things better).    

or Call (970) 527-7657 before ordering to determine availability in certain sizes and colors.

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Solar Pathfinder ($279.00)
by Solar Pathfinder

The Solar Pathfinder gives an entire year´s solar potential for a given site in just seconds. This non-electronic instrument is ready-to-use and includes: an online manual, 20 Sunpath Diagrams (latitude & application specific), angle estimator (for determining altitude and azimuth), white marking pen, a rugged carrying case and a tripod.

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Solar Pathfinder -PV & Base Assisting Software ($189.00)
The radiation environment of streams is of major ecological importance because it controls stream thermal regime and light availability for photosynthesis. Therefore, methods are needed for measuring stream shade in practical riparian management. Methods are also needed for predicting future light exposure for forestry and turf grass physiology (golf course management). The Solar Pathfinder and Assistant Software allow industry experts to gather the shading information data needed to determine the effects of environmental stresses and provide the quality adjustments to best suit their environment.
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Solar Pathfinder Software: PV, Base and Solar Thermal Assist Software ($229.00)

Any scientific analysis requires accurate input and careful calculations. The Solar Pathfinder and Assistant provide mathematical precision for accurate shading assessment (solar site analysis) by eliminating gross errors in structure orientation, solar system sizing, and PV/collector placement. The Solar Pathfinder Assistant software dovetails local weather data (using NREL/WMO) and site-specific shade analysis in a customizable report. Originally furnished for the ecological and photovoltaic applications, the Assistant software now services the growing thermal technologies.

Regardless of the industry being serviced, the software identifies the shading patterns and total potential energy produced at any given site. The Solar Pathfinder Assistant software is a fast, accurate, and proven way to create a data-rich report for solar rebate programs. Check out the System Requirements.

Version 3 users: upgrade for FREE to version 4. The upgrade includes version 4 & PV plug-in.