Green Plumbing

Category - Solar Hot Water

In general, what is the pattern of solar fraction values in the United States?
  1. Increasing values the further south one moves
  2. Increasing values the further north one moves
  3. Increasing values the further west one moves
  4. Varies depending on terrain and elevation
Explanation
Answer: A - The solar fraction generally increases the further south one moves. Given that the solar fraction is the proportion of hot water that a solar water heating system can supply to a site of its total hot water requirements, it stands to reason that those areas with more heat and sun will facilitate the effectiveness of a solar water heating system.
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