New Study Finds Solar Panels Are "Contagious"

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Are you more likely to install solar panels if your neighbor has them? A new study (PDF) out of Stanford says that you are. More specifically, it finds that for every 1 percent increase in the number of installations in a particular zip code, the time until the next adoption of solar decreases by 1 percent. Or, as Vote Solar's Adam Browning put it: Solar is contagious!