

Design Tools
Sustainable By Design provides a suite of shareware design tools on sustainable energy topics:
| SUN ANGLE TOOLS | |||
| SunAngle the premiere tool for solar angle calculations |
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| SunPosition calculates a time series of basic solar angle data |
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| WINDOW TOOLS | |||
| Overhang Analysis visualization of the shade provided by a window overhang at a given time, plus a chart depicting annual performance |
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| Overhang Recommendations suggested climate-specific dimensions for equator-facing window overhangs |
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| Light Penetration visualization of the penetration of sunlight into a room |
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| Louver Shading visualization of louvered shading system performance for an entire year |
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| Vertical Fin Shading visualization of a vertical fin shading system performance for an entire year |
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| Window Heat Gain calculation of monthly heat gain through windows |
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| OTHER TOOLS | |||
| Panel Shading visualization of the shading of rows of flat panel collectors throughout the year |
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| USA Climate Data monthly climate data for about 250 U.S. cities |
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