


Welcome to Sustainable By Design! Sustainable By Design is the consulting firm of Christopher Gronbeck, Seattle, Washington, USA. Christopher provides solar engineering, green building consulting, graphic design, and web site design and programming services, primarily within the sustainable energy and architecture fields. What would you like more information about? SunAngle Software Christopher's premiere solar design tool is SunAngle, a shareware program used around the world since 1995 to calculate solar angles based on location, date, and time. SunAngle runs directly in your web browser.
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