The available options for design and materials vary widely depending on the experience of an architectural firm and the circumstances of an individual project. Even if you choose not to plug into a photovoltaic array or a backyard wind turbine, smart choices in many other areas allow you to make significant gains. Consider using recycled and nontoxic materials, solar or passive water heaters, efficient insulation, and a trustworthy thermostat. Because many of these measures involve whole-house systems, it's essential for you to establish criteria (link to Eco-Build) that addresses them.

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