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This website provides a selection of references and analysis tools for solar design - books, websites, publications and information on solar ...more
Design your own solar collector and compute the efficiency curves in various conditions. You can also compare these curves to experimental ...more
This tool provides a graphical representation of the sun's apparent path through the sky. It can be used to rapidly determine coarse sun angle ...more
Group discounts help you and your community buy solar energy! 1BOG (One Block Off the Grid) organizes big groups of people together who want to ...more
From the guys at Solar Power Rocks, a graded report card that shows how each state in the US fares. only 30% of our states received passing grades ...more
A & R Solar designs and installs photovoltaic (solar electric) and solar thermal (hot water) systems. Though we have experience installing ...more