Passive Solar Design

Definition: An approach to building design that uses the sun's energy for heating and cooling living spaces without active mechanical systems.

Relevance to home energy efficiency: Passive solar design can significantly reduce or eliminate the need for mechanical heating and cooling, leading to lower energy consumption.'

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Benefits:

• Reduces or eliminates heating and cooling costs
• Provides natural, comfortable living environments
• Low maintenance once implemented

Drawbacks:

• Requires careful planning and design
• May limit design flexibility
• Effectiveness can be impacted by local climate and site conditions

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Statistics: The U.S. Department of Energy estimates that a well-designed passive solar home can reduce heating costs by 50% or more compared to a similar conventional home.