Rainwater Harvesting for Drylands and Beyond by Brad Lancaster

Sun Angles & Passive Solar Designs


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The Passive Solar Energy Book, by Ed Mazria. Rodale Press, 1979. Excellent. Out of print, but available from amazon.com, powells.com, and others.

Sun, Wind, and Light: Architectural Design Strategies, 2nd ed., by G. Z. Brown and Mark DeKay. William Stout Architectural Books, 2000. A pattern book illustrating passive heating and cooling strategies for a diverse array of contexts ranging from individual homes to high rises to whole towns. Highly recommended.

The Food- and Heat-Producing Solar Greenhouse, by Bill Yanda and Rick Fisher. John Muir Publications, 1980.

Effective Shading with Landscape Trees, by William B. Miller and Charles M. Sacamano. University of Arizona College of Agriculture, Cooperative Extension bulletin 188035/8835, March 1990.


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To determine your site’s latitude, look at a globe, atlas, or topographic map, or google “what is the latitude of (your town, state, country).”

Online Passive Solar Roof Overhang Analysis Tool
See the Sustainable By Design website for a great Overhang Annual Analysis Tool, which lets you visualize the degree to which a horizontal overhang shades a window throughout the year.

Solar Ovens/Cooking

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The Sunny Side of Cooking: Solar Cooking and Other Ecologically Friendly Cooking Methods for the 21st Century, by Lisa Rayner, Lifeweaver LLC, 2007. www.LisaRayner.com

Sun Oven International, Inc.
Makers of the Global Sun Oven®, the most efficient solar oven I’ve used.

Solar Cookers International
A great organization/resource for making and using your own solar oven.

Drops in a Bucket Blog

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Upcoming Events

Also see the full list of upcoming events.

Umbrella Newsletter

The Umbrella: Spring Equinox 2017

A catch-all of resources,
events, media, and more
from Brad Lancaster
Spring Equinox 2017
Around here we like to rhyme with the seasons whenever possible. In this case, that means welcoming the fast-approaching beginning of SPRING (the Vernal Equinox (in the northern hemisphere) is March 20 this year in Tucson, and marks one of only two […]

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