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Passive Solar Heating and Daylighting for Business Owners

Photo of a Walmart jewelry counter with clerestory windows and skylight above.

Walmart is one of the largest users of daylighting in the world. Daylighting is employed at this Walmart Supercenter in Aurora, Colorado.

The following resources can help you incorporate passive solar heating and daylighting designs into your office or commercial building. If you are unfamiliar with these technologies, see the introduction to passive solar heating and daylighting.

General Information

U.S. Department of Energy's Energy Savers: Passive Solar Home Design
Can be applied to other buildings as well.

U.S. Department of Energy Commercial Building Initiative
The Commercial Building Initiative aims to significantly improve the energy efficiency of new and existing commercial buildings.

American Solar Energy Society
Has publications on passive solar design and daylighting, and information on its National Tour of Solar Homes, which is held every October in many communities throughout the United States.

Passive Solar Design
From the Sustainable Sources website.

Evaluation Tools

OpenStudio Software
OpenStudio is a cross-platform (Windows, Mac, and Linux) collection of software tools to support whole building energy modeling.

Solar Radiation Data Manual for Buildings
Provides information on solar radiation and illuminance values for windows in many areas across the United States.

Training and Workshops

Solar Energy International
Features information about its hands-on workshops and online courses in solar building technologies.


Database of State Incentives for Renewables and Efficiency
Provides information on state, local, utility, and selected federal incentives that promote renewable energy.