Coming soon to a house near you – or even to your own house - rooftop solar. Solar energy is clean, cheap and limitless. Everywhere in the United States receives at least some of it most days.
Why It Matters
- Converting solar energy into solar power for a home requires a rooftop system.
- Sunlight strikes the photovoltaic (PV) cells on the panel.
- The PV cells have two layers of semiconductors, one positive and one negative. The electric field between the two layers causes electricity to flow.
- A greater intensity of light generates a greater amount of electricity.
With the link below, learn more about rooftop solar. Then answer the following questions.
- What is the process that converts sunlight into electricity that can be used in a home?
- What happens to the extra power that a rooftop solar system generates on a sunny day? What benefit does the owner of the solar system get?
- What part of the United States would benefit the most from developing solar power? Does this mean that solar power is not useful for some areas?
- What are two possible reasons that a solar system is not found on every rooftop in every location that there is enough incoming solar energy? (Hint: Think about money.)