If you think that selling cleaning items and encyclopedias are some of the most common items to be sold using the door-to-door method, then maybe a solar vendor has yet to knock on your door. Vivint Solar has been practicing door-to-door selling in order to attract potential buyers to their rooftop solar panels.
There is a challenge in the technical explanations but it turns out to be very effective. As the company is gaining momentum, the COVID-19 pandemic happened and the global economy is the biggest casualty. New rules and regulations impose restrictions on any social interaction, and that includes door-to-door selling.
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