Read four notes Tyler took while doing his research on solar panels.
• Solar energy is affordable because sunshine is free.
• Solar panels produced in China cost consumers about 15% less than those made in America.
• Just as the cost of solar panels keeps going down, so does the cost of installing them.
• Traditional utility companies see solar energy as a growing threat to their ability to do business.
Choose the two notes that are both relevant to the idea that solar panels have recently decreased in price.
