At a time when the housing market remains in a slump, consumer demand is growing for energy-efficient homes that are kinder to the environment. And it’s not just individual homes that are going green. Increasingly, it’s entire neighborhoods.
With its mix of single-family, duplex and 4-unit buildings, organic farm, shared office space and common house, the [...]

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There is no cookie-cutter solution for what type of renewable energy system will be most effective and economical in any given application. Many factors must be balanced to develop a good design, including proper siting, environmental resources, financial incentives, social considerations, and environmental effects. Here is some real-world advice concerning each of the major technologies.

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Solar hot water systems are a great way for homeowners to save money. The California Energy Commission estimates that replacing an electric water heating system a solar hot water system in a typical household can cut off of water heating costs by 60-70%.
Solar hot water collectors are more than 3x as efficient [...]

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